# FewerJobs export - 100 curated jobs Generated: 2026-06-18T11:24:03.263Z Source: https://fewerjobs.com ## Filters applied - **q**: Mariana Minerals - **quality_floor**: default - **match_401k_strict**: true - **parental_strict**: true - **non_birth_strict**: true - **pto_strict**: true - **include_older**: false - **apply_url_verified**: false - **page**: 1 - **per_page**: 100 - **sort**: relevance ## Jobs ### Senior Accountant - Mariana Minerals - Location: Houston, TX, Houston, Texas, US (unspecified) - Salary: Not disclosed - Posted: 2026-06-05 - Apply: https://jobs.ashbyhq.com/marianaminerals/ce66ae08-9a35-41c6-977a-f2e49cc484b3 - Excerpt: Senior Accountant Houston, TX, Houston, Texas, US About Mariana Minerals Mariana Minerals is a software-first, vertically integrated minerals company on a mission to supply the critical minerals powering modern energy, AI, and defense technologies. We're reimagining the minerals supply chain by combining deep industry expertise with advanced software, automation, and data-driven decision-making. The Role We are hiring a Senior Accountant to support the accounting operations that ensure accuracy, transparency, and reliability across Mariana's growing portfolio of assets and operating entities. This is a hands-on role focused on executing core accounting processes and supporting the monthly close, reconciliations, and financial reporting. You will work closely with the Accounting Manager, FP&A team, and operational leaders to ensure financial activity is properly recorded and reflected in company reporting. As Mariana continues to scale, this role will also contribute to improving accounting workflows, strengthening internal controls, and helping implement systems that support efficient and reliable financial operations. This role is ideal for someone who enjoys detailed work, solving accounting challenges, and building efficient processes in a fast-moving environment. What You'll Do - Support the monthly, quarterly, and annual close process - Prepare journal entries, accruals, and account reconciliations - Maintain general ledger accuracy across multiple entities - Assist with preparation of financial statements and supporting schedules - Track and record expenses, and operational transactions - Partner with FP&A to ensure accurate budget vs. actual reporting - Investigate and resolve accounting discrepancies and variances - Support implementation and documentation of accounting policies and procedures - ### Geology Intern - Mariana Minerals - Location: Moab, UT, Moab, Utah, United States (unspecified) - Salary: Not disclosed - Posted: 2026-04-14 - Apply: https://jobs.ashbyhq.com/marianaminerals/5a18d6c4-df6e-4151-8d1d-26b30058d5c8 - Excerpt: Geology Intern Moab, UT, Moab, Utah, United States About Mariana Minerals Mariana Minerals is a software-first, vertically integrated minerals company on a mission to supply the critical minerals powering modern energy, AI, and defense technologies. We're reimagining the minerals supply chain by combining deep industry expertise with advanced software, automation, and data-driven decision-making. The Role We are hiring a Geology Intern to work on real, high-impact problems within the Geology team. You will contribute directly to mineral exploration, deposit development and mine production geology working closely with engineers and domain experts. This role is designed to provide hands-on experience building and shipping solutions, not just supporting tasks. What You'll Do - Work on exploration and development of a new copper deposit defining ore characteristics related to depositional environment and mineralization model - Create geologic logs of core and RC cutting from exploration drilling - Assign lithofacies designations to drilling intervals - Deliver drilling samples to lab for analysis - Correlate copper and multi-element assays to lithofacies and investigate differences by lithofacies - Collaborate with cross-functional team members including geologists, lab technicians and drilling crews - Present outcomes and learnings at the end of the internship Desired Qualifications - Currently pursuing a degree in Geology - Strong fundamentals in geologic knowledge, data recording, organization and analysis - Hands-on experience through sedimentary geology courseworkAbility to break down problems and execute independently - Clear communication and willingness to learn Why Join Us? At Mariana Minerals, you'll be part of a mission-driven team reshaping ### Construction Project Manager - Mariana Minerals - Location: Houston, TX, Houston, Texas, US (unspecified) - Salary: Not disclosed - Posted: 2026-06-09 - Apply: https://jobs.ashbyhq.com/marianaminerals/d64c4408-8af6-47a9-916c-1b81705eaae2 - Excerpt: Construction Project Manager Houston, TX, Houston, Texas, US About Mariana Minerals Mariana Minerals is a software-first, vertically integrated minerals company on a mission to supply the critical minerals powering modern energy, AI, and defense technologies. We're reimagining the minerals supply chain by combining deep industry expertise with advanced software, automation, and data-driven decision-making. Our culture is built on three principles: - Extreme Ownership - We take full responsibility for outcomes, relentlessly driving toward solutions. - Engineer Out Requirements, then Automate - We simplify, optimize, and then automate for scale. - Share Your Legos - We collaborate openly, share knowledge, and empower each other to build bigger, better solutions. Join us as we build the future of responsible mineral sourcing and supply. What to Expect As a Construction Project Manager at Mariana Minerals, you will play a critical role in new facility buildout, capacity upgrades, and infrastructure delivery for one of the most ambitious companies in the critical minerals sector. You will manage general contractors and subcontractors across multiple trades to install pilot plants and collaborate cross-functionally with construction engineering, design, facilities, commissioning, and production as facilities transition to full operations. Working from both the field and the office, you will own budgets and schedules end-to-end - and help us build the software-driven project systems that make future builds faster and smarter. What You'll Do Project Ownership & Delivery - Take full ownership of assigned projects - ensuring stakeholder satisfaction, identifying opportunities, and driving cost savings across all phases. - Manage ### Electrician - Mariana Minerals - Location: East Texas, Joaquin, Texas, US (unspecified) - Salary: Not disclosed - Posted: 2026-05-13 - Apply: https://jobs.ashbyhq.com/marianaminerals/14e3d269-e211-4caf-9009-4f008c0e02eb - Excerpt: Electrician East Texas, Joaquin, Texas, US About Mariana Minerals Mariana Minerals is a software-first, vertically integrated minerals company on a mission to supply the critical minerals powering modern energy, AI, and defense technologies. We're reimagining the minerals supply chain by combining deep industry expertise with advanced software, automation, and data-driven decision-making. Our culture is built on three principles: Extreme Ownership - We take full responsibility for outcomes, relentlessly driving toward solutions. Engineer Out Requirements, then Automate - We simplify, optimize, and then automate for scale. Share Your Legos - We collaborate openly, share knowledge, and empower each other to build bigger, better solutions. POSITION DESCRIPTION: The Mariana Minerals Electrician will provide competent and effective electrical support to our Refinery operations in East Texas. Our Electrician will be primarily responsible for maintaining, repairing, testing, adjusting, and assisting in the installation and removal of all electrical, communication, control, and measurement equipment at assigned locations. Our Electrician will perform a variety of operations, maintenance, and construction tasks to maintain safe operations of the refinery and its related facilities all while ensuring the facility is operated and maintained in compliance with company and applicable regulatory standards and practices. KEY RESPONSIBILITIES AND ACCOUNTABILITIES: - Understand how to read and translate the information found within building and process blueprints and one-line diagrams to install outlets, circuits, load centers and other forms of electrical equipment - After installing the electrical equipment, test all connections to ensure all components are working properly and safely. - Troubleshoot and diagnose ### Staff Process Engineer - Mariana Minerals - Location: Houston, TX, Houston, Texas, US (unspecified) - Salary: Not disclosed - Posted: 2026-03-24 - Apply: https://jobs.ashbyhq.com/marianaminerals/54b3a115-b569-48ed-a483-f97caf6e7757 - Excerpt: Staff Process Engineer Houston, TX, Houston, Texas, US About Mariana Minerals Mariana Minerals is a software-first, vertically integrated minerals company on a mission to supply the critical minerals powering modern energy, AI, and defense technologies. We're reimagining the minerals supply chain by combining deep industry expertise with advanced software, automation, and data-driven decision-making. The Role Mariana Minerals is seeking a highly motivated Process Engineer to support our next-generation minerals processing pilot plant in Houston. You will help design, deploy, and operate first-of-its-kind refining processes for critical minerals. This role is highly hands-on and will play a key role in bridging R&D and plant operations, helping scale technologies from laboratory development through pilot demonstration and ultimately to commercial production. You will work closely with technicians, engineers, and cross-functional teams to ensure processes are robust, safe, and ready for industrial deployment. What You'll Do - Lead equipment and process design from concept through procurement, fabrication, installation, commissioning, and startup - Operate, troubleshoot, and improve pilot-scale processing equipment in collaboration with pilot plant technicians - Design and execute pilot-scale experiments to evaluate process performance, recovery, throughput, and product quality - Develop and maintain key process documentation including PFDs, P&IDs, mass and heat balances, operating procedures, and control narratives - Analyze experimental and operational data to identify opportunities for process optimization and scale-up - Support development of automated plant monitoring and optimization tools in collaboration with software and machine learning teams - Ensure safe operations by supporting EHS, hazard assessments, risk management, and management ### Sr. Estimator - Mariana Minerals - Location: Houston, TX, Houston, Texas, US (unspecified) - Salary: Not disclosed - Posted: 2026-04-08 - Apply: https://jobs.ashbyhq.com/marianaminerals/76c24ff0-cdff-4d57-a204-f8f387830c01 - Excerpt: Sr. Estimator Houston, TX, Houston, Texas, US About Mariana Minerals Mariana Minerals is a software-first, vertically integrated minerals company on a mission to supply the critical minerals powering modern energy, AI, and defense technologies. We're reimagining how minerals are sourced, refined, and optimized by combining deep industrial expertise with software, automation, and data-driven decision-making. Join us as we build the future of responsible mineral sourcing and supply. Role Overview Mariana Minerals is seeking an experienced and detail-oriented Sr. Estimator to lead cost estimation efforts for mining and mineral processing projects. This role is responsible for developing accurate, competitive, and timely cost estimates that support strategic decision-making and project success. What You'll Do - Lead the preparation of detailed cost estimates for mining, processing, and infrastructure projects - Analyze drawings, specifications, proposals, and other documentation to prepare time, cost, materials, and labor estimate - Utilize RSMeans data and tools to develop accurate and benchmarked cost estimates - Collaborate with engineering, procurement, and project management teams to ensure accurate and comprehensive estimate - Develop and maintain cost databases, benchmarks, and estimating tools - Identify project risks and opportunities, providing mitigation strategies - Review and validate subcontractor and supplier quotes - Participate in bid reviews, value engineering, and project planning sessions - Provide ongoing cost analysis and support throughout the project lifecycle - Mentor junior estimators and contribute to continuous improvement initiatives - Support the PCM and Software Engineering teams in developing operating systems and tools to automate estimating processes What You'll Bring ### Extractive Metallurgist - Mariana Minerals - Location: Moab, UT, Moab, Utah, United States (unspecified) - Salary: Not disclosed - Posted: 2026-02-26 - Apply: https://jobs.ashbyhq.com/marianaminerals/810cb518-ecff-4900-8e0a-f58f38b24134 - Excerpt: Extractive Metallurgist Moab, UT, Moab, Utah, United States About Mariana Minerals Mariana Minerals is a software-first, vertically integrated minerals company on a mission to supply the critical minerals powering modern energy, AI, and defense technologies. We're reimagining the minerals supply chain by combining deep industry expertise with advanced software, automation, and data-driven decision-making. Join us as we build the future of mining and minerals refining. The Role We are seeking an Extractive Metallurgist to join our growing technical team in Moab, UT. This role will play a critical part in the development, optimization, and scale-up of mineral processing systems for Mariana's global operations. The ideal candidate brings strong process engineering and metallurgical expertise, ideally in zinc or copper, and thrives in fast-paced, startup environments where independence, creativity, and problem solving are essential. You'll work closely with operations, engineers, machine learning experts, and data scientists to develop innovative solutions that improve efficiency, recovery, and throughput across our projects. What You'll Do - Design, test, and optimize mineral processing flowsheets for new and existing projects. - Lead laboratory, pilot-scale, and plant trials for process validation and improvement. - Analyze metallurgical data to improve recovery, efficiency, and cost performance. - Collaborate with engineering teams on process design and scale-up. - Partner with data scientists and ML engineers to integrate advanced analytics and predictive models into process optimization. - Support commissioning and ramp-up of new facilities, with significant travel to sites. - Contribute to Mariana's culture of continuous improvement, innovation, and safety. What You'll ### Senior Full Stack Software Engineer - Mariana Minerals - Location: San Francisco HQ, San Francisco, California, US, Houston, TX, Ann Arbor, MI, Moab, UT (unspecified) - Salary: Not disclosed - Posted: 2025-10-07 - Apply: https://jobs.ashbyhq.com/marianaminerals/b646235d-3d25-42c7-b68b-31530a99b98f - Excerpt: Senior Full Stack Software Engineer San Francisco HQ, San Francisco, California, US, Houston, TX, Ann Arbor, MI, Moab, UT About Mariana Minerals Mariana Minerals is a software-first, vertically integrated minerals company on a mission to supply the critical minerals powering modern energy, AI, and defense technologies. We're reimagining the minerals supply chain by combining deep industry expertise with advanced software, automation, and data-driven decision-making. Join us as we build the future of responsible mineral sourcing and supply. Role Overview Mariana Minerals is looking for an experienced Senior Full Stack Software Engineer to lead critical technical initiatives in building the next-generation critical minerals supply chain to support the world's energy transition. As a Senior Full Stack Software Engineer at Mariana Minerals, you will architect, lead, and deliver software systems that accelerate the engineering and construction of physical infrastructure critical to building the minerals supply chain. You will drive technical strategy, mentor team members, and own end-to-end delivery of complex systems. Key responsibilities include designing and implementing robust integrations with existing engineering and construction software tools, architecting scalable solutions to address pain points identified by Mariana's internal teams, leading cross-functional collaboration with ML engineers to integrate LLMs for unstructured data challenges, and spearheading the development of a new "operating system" for the engineering, construction, and operation of Mariana's mineral processing facilities. This is a truly full-stack role where you'll be expected to write production-quality frontend code while also demonstrating deep understanding of system design and backend architecture. You'll move seamlessly between user ### Contract Electrical & Instrumentation Designer - Mariana Minerals - Location: remote, San Francisco, California, United States (remote) - Salary: Not disclosed - Posted: 2026-05-21 - Apply: https://jobs.ashbyhq.com/marianaminerals/bb31200a-3733-482b-9a3d-3c9afb3f6a22 - Excerpt: Contract Electrical & Instrumentation Designer remote, San Francisco, California, United States About Mariana Minerals Mariana Minerals is a software-first, vertically integrated minerals company on a mission to supply the critical minerals powering modern energy, AI, and defense technologies. We're reimagining how minerals are sourced, refined, and optimized by combining deep industrial expertise with software, automation, and data-driven decision-making. Join us as we build the future of responsible mineral sourcing and supply. Role Overview Mariana Minerals is looking for a Contract Electrical & Instrumentation Designer to work on building the critical minerals supply chain. As an Electrical & Instrumentation Designer at Mariana Minerals, you will lead the configuration of projects in AutoCAD Electrical (or similar software packages), develop best practices and workflows for drafting and modeling, and support drafting and modeling activities from conceptual engineering through to detailed design. What You'll Do - Configure new projects in AutoCAD Electrical - Setup project databases, symbol libraries, and drawing templates - Draft single-line diagrams (SLDs) and electrical one-lines - Configure and draft schematic wiring diagrams, loop drawings, and instrument location plans - Develop and draft cable tray and conduit routing layouts, grounding plans, and instrument index lists - Define requirements for third party electrical equipment models, vendor schematics, and instrument datasheets to integrate into Mariana Minerals hosted AutoCAD Electrical environment - Define requirements for third party EPC companies to complete detailed engineering What You'll Bring - 5+ years of experience with AutoCAD Electrical - CAD admin experience - 2D drafting experience. SLDs, schematics, ### Mechanical Maintenance Technician - Mariana Minerals - Location: San Francisco HQ, San Francisco, California, US (unspecified) - Salary: Not disclosed - Posted: 2026-03-11 - Apply: https://jobs.ashbyhq.com/marianaminerals/4197a2a8-070d-4ec5-8496-4ddbb6f74c5a - Excerpt: Mechanical Maintenance Technician San Francisco HQ, San Francisco, California, US About Mariana Minerals Mariana Minerals is a software-first, vertically integrated minerals company on a mission to supply the critical minerals powering modern energy, AI, and defense technologies. We're reimagining the minerals supply chain by combining deep industry expertise with advanced software, automation, and data-driven decision-making. The Role Mariana Minerals is looking for a highly motivated Mechanical Maintenance Technician to join our San Francisco Pilot Plant team. You will support the design, installation, and maintenance of first-of-its-kind refining processes for critical minerals. This position plays a critical role in bridging R&D and Operations, ensuring our equipment and work processes are robust, safe, cost-effective, and suitable for commercial production. What You'll Do - Perform preventive and corrective maintenance on plant equipment including pumps, valves, piping systems, filtration units, and other process equipment. - Troubleshoot and repair mechanical issues to maintain safe and reliable plant operations. - Assist with fabrication, installation, modification, startup, and commissioning of new equipment and pilot plant systems. - Read and interpret engineering drawings, P&IDs, and equipment manuals to support maintenance and installation work. - Safely perform maintenance activities following plant safety procedures including Lockout/Tagout (LOTO), hot work permitting, and confined space entry. - Identify and maintain critical spare parts for the pilot plant - Champion the site Computerized Maintenance Management System (CMMS) system Desired Qualifications - Associate degree, technical certificate, or equivalent hands-on experience in industrial maintenance, mechanical technology, millwright work, or a related field. - 3+ years ### Sr. Plant Manager - Mariana Minerals - Location: Houston, TX, Houston, Texas, US (unspecified) - Salary: Not disclosed - Posted: 2026-03-11 - Apply: https://jobs.ashbyhq.com/marianaminerals/5f6be0eb-48ec-449f-8b29-a67eefaf3ae2 - Excerpt: Sr. Plant Manager Houston, TX, Houston, Texas, US About Mariana Minerals Mariana Minerals is a software-first, vertically integrated minerals company on a mission to supply the critical minerals powering modern energy, AI, and defense technologies. We're reimagining the minerals supply chain by combining deep industry expertise with advanced software, automation, and data-driven decision-making. The Role Mariana Minerals is seeking a highly motivated Sr. Plant Manager to lead the development and operation of our next-generation minerals processing pilot facility in Houston. You will be responsible for establishing and operating a first-of-its-kind pilot plant, including site setup, equipment design, construction, commissioning, start-up, and ongoing operations. You will help build and lead a multidisciplinary team of engineers and technicians to develop, test, and optimize innovative refining processes for critical minerals. This role serves as a critical bridge between R&D and commercial deployment, ensuring technologies are safely and effectively scaled from pilot to industrial production. What You'll Do - Lead the design, construction, commissioning, and startup of Mariana's Houston pilot plant facility. - Oversee day-to-day pilot plant operations to ensure safe, reliable, and efficient execution of minerals refining processes. - Oversee the design and execution of pilot-scale experiments to validate reaction parameters, optimize yields, and demonstrate process reproducibility. - Drive the creation and upkeep of process documentation including PFDs, P&IDs, mass/energy balances, and operating procedures. - Recruit, build, and manage a team of engineers and technicians to support pilot plant development and operations. - Collaborate with R&D, engineering, and commercial design teams to scale ### Chemical Engineering Intern - Mariana Minerals - Location: Moab, UT, Moab, Utah, United States (unspecified) - Salary: Not disclosed - Posted: 2026-05-28 - Apply: https://jobs.ashbyhq.com/marianaminerals/1f8dc663-ae78-44ad-8232-ebf5dcf2385a - Excerpt: Chemical Engineering Intern Moab, UT, Moab, Utah, United States About Mariana Minerals Mariana Minerals is a software-first, vertically integrated minerals company on a mission to supply the critical minerals powering modern energy, AI, and defense technologies. We're reimagining the minerals supply chain by combining deep industry expertise with advanced software, automation, and data-driven decision-making. The Role We are hiring a Chemical Engineering Intern to work on real, high-impact problems within the Operations team. You will contribute directly to commissioning a first-of-a-kind copper scrap recycling plant, working closely with engineers and domain experts. This role is designed to provide hands-on experience building and shipping solutions , not just supporting tasks. What You'll Do - Assist in commissioning pilot equipment - Operate pilot plant to perform various process tests and performance evaluations - Collaborate with cross-functional team members including engineers and operators - Present outcomes and learnings at the end of the internship Desired Qualifications - Currently pursuing a degree in Chemical Engineering or Metallurgy - Strong fundamentals in fundamental knowledge, data recording, organization and analysis, and equipment operation/maintenance - Hands-on experience with processing equipment - Ability to break down problems and execute independently - Clear communication and willingness to learn - Willingness to work both day & night shifts with operators and engineers Why Join Us? At Mariana Minerals, you'll be part of a mission-driven team reshaping the way critical minerals are sourced and supplied globally. You'll have the autonomy to make big decisions, the tools to innovate, and a culture ### Sr. Electrical Engineer - Mariana Minerals - Location: San Francisco HQ, San Francisco, California, US, Houston, TX (unspecified) - Salary: Not disclosed - Posted: 2026-05-28 - Apply: https://jobs.ashbyhq.com/marianaminerals/0f7487f1-7396-4bd1-8339-66615e10b94a - Excerpt: Sr. Electrical Engineer San Francisco HQ, San Francisco, California, US, Houston, TX About Mariana Minerals Mariana Minerals is a software-first, vertically integrated minerals company on a mission to supply the critical minerals powering modern energy, AI, and defense technologies. We're reimagining how minerals are sourced, refined, and optimized by combining deep industrial expertise with software, automation, and data-driven decision-making. Join us as we build the future of responsible mineral sourcing and supply. Role Overview Mariana Minerals is seeking a highly motivated Sr. Electrical Engineer to support the design and implementation of power systems that enable the build-out of critical mineral infrastructure vital to the global energy transition. In this role, you will lead and contribute to the development of high, medium, and low voltage electrical distribution systems for first-of-its-kind chemical refining processes. Your work will span the full project lifecycle-from conceptual studies to detailed design, construction, commissioning, and energization. You will also be responsible for system modeling and analysis, ensuring that power systems are robust, reliable, and compliant with applicable standards. What You'll Do - Design and develop power distribution systems across high, medium , and low voltage networks for industrial infrastructure projects. - Produce and review single-line diagrams (SLDs), panel schedules, wiring diagrams, grounding plans, conduit/cable schedules, and equipment specifications. - Perform power system studies including: - Load flow and voltage drop analysis - Short circuit analysis - Arc flash hazard assessment - Protective device coordination - Select and specify electrical equipment such as transformers, switchgear, motor control centers ### Sr. Technical Program Manager - Mariana Minerals - Location: Moab, UT, Moab, Utah, United States (unspecified) - Salary: Not disclosed - Posted: 2026-05-21 - Apply: https://jobs.ashbyhq.com/marianaminerals/680d1a0a-8a7e-44c1-a85f-8ceb0608ac96 - Excerpt: Sr. Technical Program Manager Moab, UT, Moab, Utah, United States About Mariana Minerals Mariana Minerals is a software-first, vertically integrated minerals company on a mission to supply the critical minerals powering modern energy, AI, and defense technologies. We're reimagining how minerals are sourced, refined, and optimized by combining deep industrial expertise with software, automation, and data-driven decision-making. Join us as we build the future of responsible mineral sourcing and supply. The Role Mariana Minerals is looking for a Sr. Technical Program Manager to join its Engineering team, to lead the delivery of a mining project at its Copper One subsidiary in Utah. This role will be instrumental in bridging initiatives and workstreams across R&D, piloting, existing operational infrastructure, engineering, construction, environmental, finance, and more. What You'll Do - Own the integrated project execution plan, master schedule, cost estimate, and risk register - Facilitate program meetings and ensure clear action tracking and progress on task statuses - Manage interfaces between all technical disciplines, contractors, and site operations - Translate geological uncertainty into project risk, contingency, and study scope - Ensure clear alignment on metallurgical test work, R&D programs, and pilot plant campaigns to de-risk the flowsheet - Direct engineering consultants and internal teams through studies and trade-offs (mining method, process route, throughput, utilities) - Oversee detailed engineering, procurement, and contractor performance - Translate permit conditions into design requirements, schedule constraints, and cost - Own the project business case, capital and operating estimates, and economic model inputs - Present funding requests and ### Senior Process Controls Engineer - Mariana Minerals - Location: Houston, TX, Houston, Texas, US, Moab, UT (unspecified) - Salary: Not disclosed - Posted: 2025-06-16 - Apply: https://jobs.ashbyhq.com/marianaminerals/3e42c553-ab6a-48f6-ae43-0bb0bcae5cd0 - Excerpt: Senior Process Controls Engineer Houston, TX, Houston, Texas, US, Moab, UT About Mariana Minerals Mariana Minerals is a software-first, vertically integrated minerals company on a mission to supply the critical minerals powering modern energy, AI, and defense technologies. We're reimagining the minerals supply chain by combining deep industry expertise with advanced software, automation, and data-driven decision-making. Role Overview Mariana Minerals is looking for a highly motivated Process Controls Engineer to work on building the critical minerals supply chain. As the Process Controls Engineer at Mariana Minerals, you will lead the development and deployment of first-of-its-kind chemical refining processes, while also playing a critical role in the development of software for capital project execution and automated plant optimization. Responsibilities will include leading equipment and plant-wide controls infrastructure and programming scopes from concept through to design, installation, commissioning, ramp, and handover to the operations team, and supporting the buildout of an in-house engineering team. What You'll Do - Develop standards for controls programming - Lead equipment scopes from concept and modeling validation, through procurement, engineering, fabrication, installation, commissioning, and ramp - Manage external equipment providers, technology licensors, and engineering companies to deliver fully integrated and functional mineral refining scopes - Drive cross-functional teams of lab technicians, pilot plant engineers, process engineers, and project engineers to lead the technical equipment scale-up and de-risk the commercialization of novel mineral refining processes - Support the hiring, mentorship, and day-to-day management of junior process engineers - Develop technoeconomic models of new project opportunities, acquisition targets, and ### Staff Program Manager - Mariana Minerals - Location: Moab, UT, Moab, Utah, United States (unspecified) - Salary: Not disclosed - Posted: 2026-04-16 - Apply: https://jobs.ashbyhq.com/marianaminerals/ba645e7c-7034-4d15-843b-53d73a82c11d - Excerpt: Staff Program Manager Moab, UT, Moab, Utah, United States About Mariana Minerals Mariana Minerals is a software-first, vertically integrated minerals company on a mission to supply the critical minerals powering modern energy, AI, and defense technologies. We're reimagining the minerals supply chain by combining deep industry expertise with advanced software, automation, and data-driven decision-making. The Role Mariana Minerals is looking for a Staff Program Manager to join its Business Operations team, to support operational execution and drive continuous improvement at its Copper One subsidiary in Utah. This role will be instrumental in bridging operational excellence with digital transformation at Mariana's first operating mine. What You'll Do - Operational performance management : Develop performance metrics and implement data collection and reporting processes to track performance against site and company goals. - Business process improvement : Work with functional leaders to identify areas for operational improvement and to design and implement processes to optimize efficiency across various functions, including finance, maintenance, supply chain, environmental, and safety. - Site digitization and change management : Use an understanding of the site's operational workflows to inform development of internal digital tools and technology platforms. Drive adoption and continuous improvement of new digital tools across the site. - Site program management : Own operational cadence for site leadership, including leadership meetings and reporting practices. Drive improvements to internal communications practices to ensure timely information flow between operational teams, site leadership, and company leadership. Desired Qualifications - 5 years in business operations or program management; experience in ### Process Modeling Engineer - Mariana Minerals - Location: San Francisco HQ, San Francisco, California, US, Houston, TX (unspecified) - Salary: Not disclosed - Posted: 2026-02-26 - Apply: https://jobs.ashbyhq.com/marianaminerals/451bfa6d-b429-450f-b272-5a77d52cf384 - Excerpt: Process Modeling Engineer San Francisco HQ, San Francisco, California, US, Houston, TX About Mariana Minerals Mariana Minerals is a software-first, vertically integrated minerals company on a mission to supply the critical minerals powering modern energy, AI, and defense technologies. We're reimagining how minerals are sourced, refined, and optimized by combining deep industrial expertise with software, automation, and data-driven decision-making. Join us as we build the future of responsible mineral sourcing and supply. The Role Mariana Minerals is seeking a highly motivated Process Modeling Engineer to support the development of next-generation refining processes for critical minerals - key to enabling the world's energy transition. In this role, you will be responsible for developing, validating, and optimizing heat and material balance models using tools such as ASPEN Plus/HYSYS, SysCAD, OLI Studio, or METSIM. You will work closely with R&D, pilot operations, and project execution teams to translate lab and pilot data into robust, scalable process models that drive the design of first-of-a-kind mineral refining facilities. What You'll Do - Develop steady-state and dynamic process models to establish heat and material balances for integrated mineral refinery systems using ASPEN, SysCAD, OLI, or METSIM. - Automate equipment and process sizing (reactors, heat exchangers, filters, crystallizers, evaporators, and separators) based on model outputs, linking models to datasheets and other engineering tools - Develop and maintain process simulation databases, ensuring consistency and traceability between modeling assumptions, test data, and engineering deliverables. - Calibrate and reconcile models using pilot or plant operating data to ensure model fidelity ### Lead Resource Geologist - Mariana Minerals - Location: Houston, TX, Houston, Texas, US, San Francisco HQ (unspecified) - Salary: Not disclosed - Posted: 2026-05-19 - Apply: https://jobs.ashbyhq.com/marianaminerals/58a57907-5fc3-4ff9-82dc-d4d50a423fb1 - Excerpt: Lead Resource Geologist Houston, TX, Houston, Texas, US, San Francisco HQ About Mariana Minerals Mariana Minerals is a software-first, vertically integrated minerals company on a mission to supply the critical minerals powering modern energy, AI, and defense technologies. We're reimagining the minerals supply chain by combining deep industry expertise with advanced software, automation, and data-driven decision-making. The Role Mariana Minerals is seeking a Lead Resource Geologist to support resource development, mine geology, and technical studies across open pit and underground mining projects. This role will contribute directly to geological interpretation, resource modeling, and grade control inputs that underpin mine planning, engineering, and economic evaluation. In this role, you will work closely with mine planning, mining engineering, and operations teams to ensure geological models are technically sound, practical, and aligned with mining realities. You will apply hands-on experience in nickel and copper systems to support resource growth, model refinement, and operational decision-making across multiple stages of project development. This role is ideal for a geologist with solid field, modeling, and operational experience who wants to demonstrate technical excellence and impact in a fast-moving, project-driven environment. What You'll Do Geological Modeling & Interpretation - Own geological and mineral resource model governance, including assumptions, documentation, uncertainty, and technical defensibility - Build, update, and maintain geological and resource models supporting open pit and underground mine designs and economic evaluation - Interpret lithology, structure, alteration, and mineralization using drilling, mapping, and sampling data - Define and apply domain-based modeling approaches and geostatistical methods appropriate for ### Sr. Geotechnical Engineer - Mariana Minerals - Location: Houston, TX, Houston, Texas, US, San Francisco HQ, Moab, UT (unspecified) - Salary: Not disclosed - Posted: 2026-01-30 - Apply: https://jobs.ashbyhq.com/marianaminerals/f8d6dee2-e47d-4509-8a0e-eb9e9a90a652 - Excerpt: Sr. Geotechnical Engineer Houston, TX, Houston, Texas, US, San Francisco HQ, Moab, UT About Mariana Minerals Mariana Minerals is a software-first, vertically integrated minerals company on a mission to supply the critical minerals powering modern energy, AI, and defense technologies. We're reimagining the minerals supply chain by combining deep industry expertise with advanced software, automation, and data-driven decision-making. The Role Mariana Minerals is seeking a Sr. Geotechnical Engineer to support mine development, infrastructure design, and operations across open pit and underground mining projects. This role provides geotechnical expertise throughout the full project life cycle-from early-stage studies and site characterization through construction, operations, and closure. In this role, you will develop and maintain geotechnical models, perform stability analyses, and support safe, efficient mine designs. You will work closely with geology, mine planning, mining engineering, and infrastructure teams to ensure geotechnical considerations are fully integrated into mine layouts, schedules, and operating strategies. This is a hands-on technical role suited for an engineer with strong technical fundamentals who is comfortable working across office, site, and field environments. What You'll Do Site Investigation & Ground Characterization - Plan and execute geotechnical investigations including drilling, test pits, core logging, sampling, and in-situ testing - Interpret geotechnical, structural, and hydrogeological data to develop site-specific ground and rock mass models - Coordinate and review laboratory testing programs for soil and rock mechanics Open Pit Geotechnical Design - Perform slope stability analyses for open pits, waste dumps, leach pads and stockpiles - Provide geotechnical inputs to mine layouts, ### Sr. Metallurgical Process Engineer - Mariana Minerals - Location: Moab, UT, Moab, Utah, United States (unspecified) - Salary: Not disclosed - Posted: 2026-06-04 - Apply: https://jobs.ashbyhq.com/marianaminerals/d0036867-cb67-49fb-909b-56712e9f66c1 - Excerpt: Sr. Metallurgical Process Engineer Moab, UT, Moab, Utah, United States About Mariana Minerals Mariana Minerals is a software-first, vertically integrated minerals company on a mission to supply the critical minerals powering modern energy, AI, and defense technologies. We're reimagining how minerals are sourced, refined, and optimized by combining deep industrial expertise with software, automation, and data-driven decision-making. Join us as we build the future of responsible mineral sourcing and supply. Role Overview Mariana Minerals is seeking a highly motivated Sr. Metallurgical Process Engineer to support process development activities & scale-up experiments at our CopperOne mine outside of Moab, UT. You will oversee engineering and operations of our bioleaching columns and other pilot scale equipment supporting current and future mine projects. This role is highly hands-on and will play a key role in bridging R&D and operations, helping scale technologies from laboratory development through pilot demonstration and ultimately to commercial mining. You will work closely with R&D, technicians, metallurgists, and cross-functional teams to ensure processes are robust, efficient, and suitable for future development & scale-up. What You'll Do - Operate, troubleshoot, and improve leaching columns and other pilot-scale processing equipment in collaboration with technicians - Design and execute pilot-scale experiments to bridge learnings between R&D and commercial mine scale - Develop and maintain key process documentation including PFDs, P&IDs, operating procedures, mass balances, etc - Analyze experimental and operational data to identify opportunities for process optimization and scale-up - Support development of automated monitoring and optimization tools in collaboration with software ### Heavy Equipment Operator - Mariana Minerals - Location: Moab, UT, Moab, Utah, United States (unspecified) - Salary: Not disclosed - Posted: 2026-02-03 - Apply: https://jobs.ashbyhq.com/marianaminerals/4a373268-ef52-4ce9-bb94-9559bb623623 - Excerpt: Heavy Equipment Operator Moab, UT, Moab, Utah, United States About Mariana Minerals Mariana Minerals is a software-first, vertically integrated minerals company on a mission to supply the critical minerals powering modern energy, AI, and defense technologies. We're reimagining the minerals supply chain by combining deep industry expertise with advanced software, automation, and data-driven decision-making. Through its Copper One platform, Mariana Minerals owns and operates the Lisbon Valley Mining Company , a producing open-pit copper mine located in southeastern Utah. Lisbon Valley Mining Company utilizes modern surface mining methods-including drilling, blasting, loading, and hauling-to deliver ore to its crushing and heap leach processing facilities. Our success depends on safe, reliable equipment performance, supported by a skilled and safety-focused maintenance team. The Role The Heavy Equipment Operator plays a critical operational role in supporting mine production through the safe and efficient operation of mobile heavy equipment, including loaders, dozers, excavators, graders, water trucks, and drill rigs. This position is responsible for conducting equipment inspections, maintaining safe working conditions, contributing to production targets, supporting operational and maintenance teams, and ensuring compliance with MSHA standards and company procedures. The ideal candidate demonstrates strong situational awareness, mechanical aptitude, and the ability to work effectively in a dynamic mining environment. What You'll Do Operational Responsibilities - Safely operate heavy equipment including loaders, bulldozers, excavators, graders, water trucks, and blasthole drill rigs. - Work across all mine areas as needed, including active pits, dumps, haul roads, and process areas. - Operate equipment in a manner that maximizes ### Staff Machine Learning Engineer - Mariana Minerals - Location: Ann Arbor, MI, Ann Arbor, Michigan, United States (unspecified) - Salary: Not disclosed - Posted: 2026-06-10 - Apply: https://jobs.ashbyhq.com/marianaminerals/f3f189d1-763d-4196-9ef9-5a7e7931e71b - Excerpt: Staff Machine Learning Engineer Ann Arbor, MI, Ann Arbor, Michigan, United States About Mariana Minerals Mariana Minerals is a software-first, vertically integrated minerals company on a mission to supply the critical minerals powering modern energy, AI, and defense technologies. We're reimagining the minerals supply chain by combining deep industry expertise with advanced software, automation, and data-driven decision-making. The Role Mariana Minerals is building the critical minerals supply chain from the ground up-and we're looking for a Staff Machine Learning Engineer to help make it autonomous. We're not a software company selling tools to mining operators. We are a mining company that builds software. Mariana designs, builds, commissions, and operates our own mines and refineries. We develop proprietary chemical processes and run them at lab, pilot, and commercial scale. Today, we're producing battery-grade lithium salts from real oil and gas wastewater in our facilities. Our first commercial-scale lithium production facility, Lithium One, is targeting initial production in Q1 of 2027. As a Staff Machine Learning Engineer at Mariana, you'll set the technical direction for how we make refining autonomous. You'll define how control models are built, validated, and trusted on live equipment across our circuits and facilities-and you'll personally take on the hardest modeling problems standing between us and fully autonomous operations. Your decisions will show up in real recovery rates, energy consumption, reagent usage, and uptime across every plant we run. The Tech This is some of the most interesting applied AI work happening today. Our internal platform, uses the ### Machine Learning Engineer - Mariana Minerals - Location: Ann Arbor, MI, Ann Arbor, Michigan, United States, San Francisco HQ, Houston, TX (unspecified) - Salary: Not disclosed - Posted: 2026-06-10 - Apply: https://jobs.ashbyhq.com/marianaminerals/44c92dd6-55f2-4e44-9360-bf4676466dac - Excerpt: Machine Learning Engineer Ann Arbor, MI, Ann Arbor, Michigan, United States, San Francisco HQ, Houston, TX About Mariana Minerals Mariana Minerals is a software-first, vertically integrated minerals company on a mission to supply the critical minerals powering modern energy, AI, and defense technologies. We're reimagining the minerals supply chain by combining deep industry expertise with advanced software, automation, and data-driven decision-making. The Role Mariana Minerals is building the critical minerals supply chain from the ground up-and we're looking for Machine Learning Engineers to help make it autonomous. We're not a software company selling tools to mining operators. We are a mining company that builds software. Mariana designs, builds, commissions, and operates our own mines and refineries. We develop proprietary chemical processes and run them at lab, pilot, and commercial scale. Today, we're producing battery-grade lithium salts from real oil and gas wastewater in our facilities. Our first commercial-scale lithium production facility, Lithium One, is targeting initial production in Q1 of 2027. As a Machine Learning Engineer at Mariana, you'll help build and improve the machine learning systems that control our mineral refining facilities. You'll start with well-scoped problems inside our simulators and training pipelines-and ramp quickly toward owning models that run on real, operating plants. Your work won't live behind dashboards or proxy metrics; you'll see its impact in real recovery rates, energy consumption, reagent usage, and uptime. The Tech This is some of the most interesting applied AI work happening today. Our internal platform uses the same reinforcement learning ### Sr. Data Engineer - Mariana Minerals - Location: Ann Arbor, MI, Ann Arbor, Michigan, United States, Houston, TX, San Francisco HQ (unspecified) - Salary: Not disclosed - Posted: 2026-06-10 - Apply: https://jobs.ashbyhq.com/marianaminerals/d47156a6-0ac7-4940-bf22-ed8c856dc002 - Excerpt: Sr. Data Engineer Ann Arbor, MI, Ann Arbor, Michigan, United States, Houston, TX, San Francisco HQ About Mariana Minerals Mariana Minerals is a software-first, vertically integrated minerals company on a mission to supply the critical minerals powering modern energy, AI, and defense technologies. We're reimagining the minerals supply chain by combining deep industry expertise with advanced software, automation, and data-driven decision-making. The Role Mariana Minerals is building the critical minerals supply chain from the ground up-and we're looking for a Senior Data Engineer to help make it autonomous. We're not a software company selling tools to mining operators. We are a mining company that builds software. Mariana designs, builds, commissions, and operates our own mines and refineries. We develop proprietary chemical processes and run them at lab, pilot, and commercial scale. Today, we're producing battery-grade lithium salts from real oil and gas wastewater in our facilities. Our first commercial-scale lithium production facility, Lithium One, is targeting initial production in Q1 of 2027. As a Senior Data Engineer at Mariana, you'll own a data domain end-to-end-designing the pipelines, schemas, and contracts that make a whole class of plant data trustworthy and queryable. The systems you build are the foundation every model and every operational decision depends on. The Tech This is some of the most interesting applied data work happening today. Our internal platform, PlantOS, uses the same reinforcement learning toolkits that power self-driving vehicles and humanoid robots-but applied to autonomous, short-interval control of mineral refining circuits. None of it works ### Project Engineering Manager - Houston - Mariana Minerals - Location: Houston, TX, Houston, Texas, US (unspecified) - Salary: Not disclosed - Posted: 2026-04-24 - Apply: https://jobs.ashbyhq.com/marianaminerals/f0ed5b09-3b8d-4f55-a786-9a2cb9e60907 - Excerpt: Project Engineering Manager - Houston Houston, TX, Houston, Texas, US About Mariana Minerals Mariana Minerals is a software-first, vertically integrated minerals company on a mission to supply the critical minerals powering modern energy, AI, and defense technologies. We're reimagining how minerals are sourced, refined, and optimized by combining deep industrial expertise with software, automation, and data-driven decision-making. Join us as we build the future of responsible mineral sourcing and supply. The Role Mariana Minerals is looking for a highly motivated Project Engineering Manager to work on building the critical minerals supply chain to support the world's energy transition. In this role, you will manage design, tasks, and the flow of information across internal and external engineering teams for your assigned project(s). You will develop and maintain project workflows, lead project-specific design activities, support document control processes, managing engineering deliverables, coordinate cross-discipline reviews, manage approvals, and provide progress updates. What You'll Do - Manage engineering activities across internal engineering teams, external engineering partners, and vendors - Take a hands-on approach in developing project-level designs and associated documentation. - Manage review/approval workflows for engineering documents, vendor submittals, and project deliverables - Coordinate cross-discipline engineering reviews, ensuring timely engagement from process, mechanical, structural, piping, electrical, instrumentation, and construction teams - Track engineering deliverables and action items, maintaining up-to-date logs, trackers, and registers to ensure alignment with the project schedule - Lead technical interface management, resolving gaps and issues between disciplines, vendors, and EPC partners - Organize and lead model reviews, design reviews, and ### Contract Piping Designer - Mariana Minerals - Location: San Francisco HQ, San Francisco, California, US, Houston, TX (unspecified) - Salary: Not disclosed - Posted: 2026-05-22 - Apply: https://jobs.ashbyhq.com/marianaminerals/56bb7464-5f1a-43f2-8108-93e0d17ea8a5 - Excerpt: Contract Piping Designer San Francisco HQ, San Francisco, California, US, Houston, TX About Mariana Minerals Mariana Minerals is a software-first, vertically integrated minerals company on a mission to supply the critical minerals powering modern energy, AI, and defense technologies. We're reimagining how minerals are sourced, refined, and optimized by combining deep industrial expertise with software, automation, and data-driven decision-making. Join us as we build the future of responsible mineral sourcing and supply. Role Overview Mariana Minerals is looking for a Contract Piping Designer to work on building the critical minerals supply chain. As a Piping Designer at Mariana Minerals, you will lead the configuration of projects in AutoCAD Plant 3D (or similar software packages), develop best practices and workflows for drafting and modeling, and support drafting and modeling activities from conceptual engineering through to detailed design. What You'll Do - Configure new projects in AutoCAD Plant 3D - Setup Data Manager and Smart P&IDs - Draft process flow diagrams (PFDs) - Configure and draft smart piping and instrumentation diagrams (P&IDs) - Develop and draft plot plans - Define requirements for third party 3D equipment models and P&IDs to integrate into Mariana Minerals hosted AutoCAD Plant 3D environment - Define requirements for third party EPC companies to complete detailed engineering What You'll Bring - 5+ years of experience with AutoCAD Plant 3D - CAD admin experience - 2D drafting experience. PFDs, P&IDs, Plot Plans, etc. - 3D modeling experience. Piping design, isometric generation, etc. Why Join Us? At Mariana Minerals, you'll ### Drilling Engineer, Exploration & Resource Automation - Mariana Minerals - Location: Moab, UT, Moab, Utah, United States (unspecified) - Salary: Not disclosed - Posted: 2026-05-29 - Apply: https://jobs.ashbyhq.com/marianaminerals/72a542f1-61bc-459b-af9a-9497306ca4b6 - Excerpt: Drilling Engineer, Exploration & Resource Automation Moab, UT, Moab, Utah, United States About Mariana Minerals Mariana Minerals is a software-first, vertically integrated minerals company on a mission to supply the critical minerals powering modern energy, AI, and defense technologies. We're reimagining how minerals are sourced, refined, and optimized by combining deep industrial expertise with software, automation, and data-driven decision-making. Join us as we build the future of responsible mineral sourcing and supply. Role Overview We are hiring a Drilling Engineer, Exploration & Resource Automation to help build and implement the automated drilling, sampling, QA/QC, and resource workflows inside MarianaOS. This role sits at the intersection of drilling, geology, resource estimation, field operations, and software product development. You will work closely with Mariana Minerals' software team to translate real-world exploration and drilling workflows into scalable software tools, automated systems, and practical field-to-model solutions. The focus is not only to execute drilling programs, but to help automate how those programs are planned, tracked, sampled, analyzed, reconciled, and optimized across greenfield, brownfield, infill, resource definition, and new drilling campaigns. The ideal candidate has a strong geology, drilling, resource modeling, and resource estimation background, plus a strong motivation to automate manual workflows and build better tools for technical teams. Experience with sediment-hosted copper, sandstone-hosted copper, red-bed copper, stratiform copper, or similar deposits is helpful, but not required. Experience creating products, internal tools, technical solutions, dashboards, workflows, or software-enabled processes is a meaningful asset. You will work on Copper One, a real sedimentary copper project ### Hydrometallurgical Process Engineer - Mariana Minerals - Location: San Francisco HQ, San Francisco, California, US, Houston, TX (unspecified) - Salary: Not disclosed - Posted: 2025-12-05 - Apply: https://jobs.ashbyhq.com/marianaminerals/135febfe-5b74-455a-825d-3fab6bcd1854 - Excerpt: Hydrometallurgical Process Engineer San Francisco HQ, San Francisco, California, US, Houston, TX About Mariana Minerals Mariana Minerals is a software-first, vertically integrated minerals company on a mission to supply the critical minerals powering modern energy, AI, and defense technologies. We're reimagining how minerals are sourced, refined, and optimized by combining deep industrial expertise with software, automation, and data-driven decision-making. Join us as we build the future of responsible mineral sourcing and supply. The Role Mariana Minerals is looking for a highly motivated Hydrometallurgical Process Engineer to work on building the critical minerals supply chain to support the world's energy transition. As a Hydrometallurgical Process Engineer at Mariana Minerals, you will lead the development and deployment of first-of-its-kind chemical refining processes, while also supporting development of software for capital project execution and automated plant optimization. Responsibilities will include leading equipment scopes from concept through to design, installation, commissioning, ramp, and handover to the operations team. What You'll Do - Lead hydrometallurgical process equipment scopes from concept development and modeling validation through procurement, detailed engineering, fabrication, installation, commissioning, and ramp-up - Manage external technology licensors, equipment vendors, and engineering partners to deliver fully integrated and performant hydrometallurgical refining systems - Develop detailed heat and material balances for complex hydrometallurgical process trains, including leaching, solution purification, solvent extraction/ion exchange, precipitation, crystallization, and residue handling - Build hydraulic models and process flow diagrams/P&IDs for hydrometallurgical circuits, ensuring operability, reliability, and safety - Create first-principles models of chemical reactors and unit operations (e.g., leach reactors, ### Sr. Pyrometallurgical Process Engineer - Mariana Minerals - Location: San Francisco HQ, San Francisco, California, US, Houston, TX (unspecified) - Salary: Not disclosed - Posted: 2026-03-02 - Apply: https://jobs.ashbyhq.com/marianaminerals/0f87c899-7bf3-425a-b6d9-6a973f4e62f2 - Excerpt: Sr. Pyrometallurgical Process Engineer San Francisco HQ, San Francisco, California, US, Houston, TX About Mariana Minerals Mariana Minerals is a software-first, vertically integrated minerals company on a mission to supply the critical minerals powering modern energy, AI, and defense technologies. We're reimagining the minerals supply chain by combining deep industry expertise with advanced software, automation, and data-driven decision-making. The Role Mariana Minerals is looking for a highly motivated Pyrometallurgical Process Engineer to help build the critical minerals supply chain supporting the world's energy transition. As a Pyrometallurgical Process Engineer at Mariana Minerals, you will lead the development and deployment of first-of-its-kind high-temperature refining and thermal processing systems. You will play a central role in designing, modeling, scaling, and commissioning pyrometallurgical unit operations, while supporting development of software tools for capital project execution and automated plant optimization. Responsibilities include leading equipment and process scopes from concept and modeling validation through detailed engineering, installation, commissioning, ramp-up, and handover to operations. What You'll Do - Lead pyrometallurgical process scopes from early concept development and thermodynamic modeling through procurement, detailed engineering, fabrication, installation, commissioning, and ramp-up - Develop detailed heat and material balances for high-temperature process trains, including drying, calcination, roasting, reduction, smelting, converting, slag cleaning, refining, and off-gas treatment - Design and validate thermal process flowsheets and PFDs/P&IDs for pyrometallurgical circuits, ensuring safety, reliability, and scalability - Build first-principles thermodynamic and kinetic models for high-temperature reactors and furnaces (e.g., rotary kilns, calciners, electric arc furnaces, submerged arc furnaces, reverberatory furnaces, flash smelters) to ### Engineering Manager, Piping & Stress Analysis - Mariana Minerals - Location: Houston, TX, Houston, Texas, US (unspecified) - Salary: Not disclosed - Posted: 2026-04-17 - Apply: https://jobs.ashbyhq.com/marianaminerals/8cf099aa-a149-4f5d-a690-583329acadd3 - Excerpt: Engineering Manager, Piping & Stress Analysis Houston, TX, Houston, Texas, US About Mariana Minerals Mariana Minerals is a software-first, vertically integrated minerals company on a mission to supply the critical minerals powering modern energy, AI, and defense technologies. We're reimagining how minerals are sourced, refined, and optimized by combining deep industrial expertise with software, automation, and data-driven decision-making. Join us as we build the future of responsible mineral sourcing and supply. The Role Mariana Minerals is looking for a highly motivated Engineering Manager, Piping & Stress Analysis, with experience managing a piping design department, completing pipe stress analysis, and developing and implementing pipe, pipe support, and valve specifications. Mariana Minerals is building the critical minerals supply chain to support the world's energy transition. As an Engineering Manager, Piping & Stress Analysis at Mariana Minerals, you will lead the development and deployment of first-of-its-kind chemical refining processes, while also supporting development of software for capital project execution and automated plant optimization. Responsibilities will include leading basic and detailed engineering strategies, managing external engineering firms, staff-aug contractors, and internal teams, developing issued-for-construction engineering packages for piping and static equipment. What You'll Do - Lead and manage a piping team of internal, staff-aug, high-value engineering center, and third party engineering firm piping designers - Oversee execution of piping engineering deliverables across multiple projects - Establish and maintain piping design standards, specifications, and best practices - Perform pipe stress analysis using Caesar II, including flexibility analysis, thermal expansion, and load cases - Conduct dynamic ### Process Engineering Intern - Mariana Minerals - Location: San Francisco HQ, San Francisco, California, US (unspecified) - Salary: Not disclosed - Posted: 2026-04-14 - Apply: https://jobs.ashbyhq.com/marianaminerals/4a03388b-7f1c-4c52-9bfc-27c5e6431880 - Excerpt: Process Engineering Intern San Francisco HQ, San Francisco, California, US About Mariana Minerals Mariana Minerals is a software-first, vertically integrated minerals company on a mission to supply the critical minerals powering modern energy, AI, and defense technologies. We're reimagining the minerals supply chain by combining deep industry expertise with advanced software, automation, and data-driven decision-making. The Role We are hiring a Process Engineering Intern to work on real, high-impact problems within the Pilot Plant Operations team in San Francisco. You will contribute directly to benchtop experiments, pilot plant test runs, and the creation of key plant operational programs, working closely with engineers and domain experts. This role is designed to provide hands-on experience building and shipping solutions, not just supporting tasks. What You'll Do - Drive experiments in the lab and pilot plant to de-risk scaleup of critical minerals processing steps - Build, test, and iterate on solutions to increase product recovery, decrease equipment downtime, controls costs, and improve health & safety - Collaborate with engineering, management, and software engineering to build programs and applications for Mariana's operations teams - Collaborate with cross-functional team members (engineering, operations, analytical lab, etc) - Present outcomes and learnings at the end of the internship Desired Qualifications - Currently pursuing or recently completed degree in chemical engineering, metallurgy, materials science, or a related field - Strong fundamentals in process design, thermodynamics, and reaction engineering - Hands-on experience in a laboratory, pilot plant, or commercial scale plant through previous projects, coursework, and/or internships - Ability ### Safety Specialist/Engineer - Mariana Minerals - Location: Moab, UT, Moab, Utah, United States (unspecified) - Salary: Not disclosed - Posted: 2026-06-05 - Apply: https://jobs.ashbyhq.com/marianaminerals/dd818bfb-4403-41d6-b4f2-1ef6684640a3 - Excerpt: Safety Specialist/Engineer Moab, UT, Moab, Utah, United States Safety Specialist/Engineer Location: Copper One, Moab, UTAH About Mariana Minerals Mariana Minerals is a software-first, vertically integrated minerals company on a mission to supply the critical minerals powering modern energy, AI, and defense technologies. We're reimagining the minerals supply chain by combining deep industry expertise with advanced software, automation, and data-driven decision-making. Our culture is built on three principles: - Extreme Ownership - We take full responsibility for outcomes, relentlessly driving toward solutions. - Engineer Out Requirements, then Automate - We simplify, optimize, and then automate for scale. - Share Your Legos - We collaborate openly, share knowledge, and empower each other to build bigger, better solutions. Join us as we build the future of responsible mineral sourcing and supply. The Role We are seeking a Safety Specialist/Engineer to be responsible and accountable for the site's safety, health, and security, along with assisting in developing, implementing, and sustaining good safety and health practices for our team. This role is responsible to ensure that safety standards and procedures are followed by all mine personnel in compliance with company, state, and federal Mine Safety and Health Administration (MSHA) rules and regulations. Copper One is a 24/7/365 open pit mining operation with an excellent safety performance and compliance record. The ideal candidate combines OSHA and MSHA expertise and experience having acted as a Safety Specialist or Safety Engineer in mining operations. What You'll Do - Lead by example, in all safety processes, ensuring complete safe ### Mechanical Engineering Intern - Mariana Minerals - Location: San Francisco HQ, San Francisco, California, US (unspecified) - Salary: Not disclosed - Posted: 2026-04-14 - Apply: https://jobs.ashbyhq.com/marianaminerals/3d0923a9-f0cf-4d96-91c9-5988665bf2f5 - Excerpt: Mechanical Engineering Intern San Francisco HQ, San Francisco, California, US About Mariana Minerals Mariana Minerals is a software-first, vertically integrated minerals company on a mission to supply the critical minerals powering modern energy, AI, and defense technologies. We're reimagining the minerals supply chain by combining deep industry expertise with advanced software, automation, and data-driven decision-making. The Role We are hiring a Mechanical Engineering Intern to work on real, high-impact problems within the Pilot Plant Operations team in San Francisco. You will contribute directly to design, improvement, and optimization of benchtop pilot plant equipment, working closely with engineers and domain experts. This role is designed to provide hands-on experience building and shipping solutions, not just supporting tasks. What You'll Do - Create 3D models, layout drawings, and other critical documentation for equipment in the lab and pilot plant - Build, test, and iterate on hands-on mechanical solutions to improve equipment performance, decrease equipment downtime, controls costs, and improve health & safety - Collaborate with engineering, management, and software engineering to build programs and applications for Mariana's operations teams - Collaborate with cross-functional team members (engineering, operations, controls engineering, etc) - Present outcomes and learnings at the end of the internship Desired Qualifications - Currently pursuing or recently completed degree in mechanical engineering or a related field - Strong fundamentals in mechanical design documentation such as equipment specifications, layout drawings, piping schematics, and CAD models - Hands-on experience designing or supporting industrial equipment including pumps, piping systems, reactors, separators, filtration systems, and ### Diamond/Core Driller - Mariana Minerals - Location: Moab, UT, Moab, Utah, United States (unspecified) - Salary: Not disclosed - Posted: 2026-04-07 - Apply: https://jobs.ashbyhq.com/marianaminerals/aaa1d4fd-4538-4a0a-a235-23d415179357 - Excerpt: Diamond/Core Driller Moab, UT, Moab, Utah, United States About Mariana Minerals Mariana Minerals is a software-first, vertically integrated minerals company on a mission to supply the critical minerals powering modern energy, AI, and defense technologies. We're reimagining the minerals supply chain by combining deep industry expertise with advanced software, automation, and data-driven decision-making. Our culture is built on three principles: - Extreme Ownership - We take full responsibility for outcomes, relentlessly driving toward solutions. - Engineer Out Requirements, then Automate - We simplify, optimize, and then automate for scale. - Share Your Legos - We collaborate openly, share knowledge, and empower each other to build bigger, better solutions. Join us as we build the future of responsible mineral sourcing and supply. Summary The Diamond/Core Driller is responsible for safely and efficiently operating diamond drilling equipment to recover high-quality core samples for mineral exploration and geological evaluation. This role requires precision drilling, strong mechanical skills, and strict adherence to safety, environmental, and quality standards, often in remote or challenging conditions. Responsibilities - Safely operate diamond/core drilling rigs in accordance with company procedures, manufacturer guidelines, and regulatory requirements - Conduct pre-start inspections and ongoing checks of drill rigs, rods, core barrels, pumps, and support equipment - Accurately set up drill sites, align rigs, and collar holes to specified angles, depths, and locations - Monitor drilling parameters including rotation speed, bit pressure, water flow, and penetration rates to optimize core recovery and equipment performance - Ensure maximum core recovery, correct handling, and proper ### RC Driller - Mariana Minerals - Location: Moab, UT, Moab, Utah, United States (unspecified) - Salary: Not disclosed - Posted: 2026-04-07 - Apply: https://jobs.ashbyhq.com/marianaminerals/b8e2d4c2-eabe-483f-aa55-27b4fbb75546 - Excerpt: RC Driller Moab, UT, Moab, Utah, United States About Mariana Minerals Mariana Minerals is a software-first, vertically integrated minerals company on a mission to supply the critical minerals powering modern energy, AI, and defense technologies. We're reimagining the minerals supply chain by combining deep industry expertise with advanced software, automation, and data-driven decision-making. Our culture is built on three principles: - Extreme Ownership - We take full responsibility for outcomes, relentlessly driving toward solutions. - Engineer Out Requirements, then Automate - We simplify, optimize, and then automate for scale. - Share Your Legos - We collaborate openly, share knowledge, and empower each other to build bigger, better solutions. Join us as we build the future of responsible mineral sourcing and supply. Summary The Reverse Circulation (RC) Driller operates RC drilling rigs to support mineral exploration and mining programs. The role focuses on safe, efficient drilling operations, highquality sample recovery, equipment care, and compliance with health, safety, and environmental standards in often remote work environments. Responsibilities - Safely operate Reverse Circulation (RC) drilling rigs in accordance with site procedures, manufacturer specifications, and regulatory requirements - Conduct thorough pre-start inspections of drill rigs, compressors, boosters, rods, hammers, and support equipment - Perform routine servicing, lubrication, and basic mechanical troubleshooting to minimize downtime - Accurately collar holes and maintain correct drilling angles, depths, and alignment per drilling plans - Monitor and adjust drilling parameters such as air pressure, rotation speed, bit wear, and penetration rate to optimize productivity and sample quality - Ensure ### Sr. Site Development Engineer - Mariana Minerals - Location: San Francisco HQ, San Francisco, California, US (unspecified) - Salary: Not disclosed - Posted: 2026-04-03 - Apply: https://jobs.ashbyhq.com/marianaminerals/34229014-6dac-4c17-afe1-d120206b1c46 - Excerpt: Sr. Site Development Engineer San Francisco HQ, San Francisco, California, US About Mariana Minerals Mariana Minerals is a software-first, vertically integrated minerals company on a mission to supply the critical minerals powering modern energy, AI, and defense technologies. We're reimagining the minerals supply chain by combining deep industry expertise with advanced software, automation, and data-driven decision-making. The Role Mariana Minerals is seeking a highly motivated Sr. Site Development Engineer to lead the planning and design of greenfield project sites. In this role, you will be responsible for end-to-end site development-from early-stage site selection and feasibility through detailed engineering and construction execution-for first-of-its-kind mining and metallurgical processing facilities. You will work cross-functionally across engineering, construction, and project delivery teams to ensure sites are designed for constructability, scalability, and long-term operational performance. You will lead civil, grading, drainage, utilities, and site infrastructure design, manage external engineering partners, and support the development of internal tools and workflows for efficient capital project execution. What You'll Do - Develop and optimize site layouts, including grading, drainage, stormwater management, access roads, and utility corridors - Drive early-stage site selection, feasibility studies, and due diligence, including topography, geotechnical constraints, permitting considerations, and infrastructure access - Design and review earthwork plans, cut/fill balancing, and mass grading strategies to optimize cost and constructability - Coordinate site infrastructure systems including roads, drainage, underground utilities, and tie-ins to external infrastructure - Manage and coordinate external engineering firms, consultants, and contractors supporting civil and site development scopes - Oversee development of issued-for-construction ### RC Drill Assistant - Mariana Minerals - Location: Moab, UT, Moab, Utah, United States (unspecified) - Salary: Not disclosed - Posted: 2026-05-06 - Apply: https://jobs.ashbyhq.com/marianaminerals/b2a91a95-5c7e-4e27-b7f3-814ae7c63e11 - Excerpt: RC Drill Assistant Moab, UT, Moab, Utah, United States About Mariana Minerals Mariana Minerals is a software-first, vertically integrated minerals company on a mission to supply the critical minerals powering modern energy, AI, and defense technologies. We're reimagining the minerals supply chain by combining deep industry expertise with advanced software, automation, and data-driven decision-making. Our culture is built on three principles: - Extreme Ownership - We take full responsibility for outcomes, relentlessly driving toward solutions. - Engineer Out Requirements, then Automate - We simplify, optimize, and then automate for scale. - Share Your Legos - We collaborate openly, share knowledge, and empower each other to build bigger, better solutions. Join us as we build the future of responsible mineral sourcing and supply. Summary The RC Driller Assistant supports the RC Driller in all aspects of reverse circulation drilling operations. This position involves assisting with equipment setup, sample collection, maintenance, and general site duties. The role requires physical strength, attention to safety, and the ability to work in remote, outdoor environments while contributing to efficient and accurate drilling operations. Responsibilities - Assist in the setup, operation, and teardown of RC drilling rigs and equipment - Handle drill rods, hammers, and tooling during drilling operations - Support sample collection, ensuring proper handling, labeling, and storage - Assist with operation of compressors, boosters, and air systems - Mix and manage drilling fluids when required - Perform routine maintenance and cleaning of drilling equipment - Load and unload equipment, tools, and supplies - Maintain ### Diamond/Core Driller Assistant - Mariana Minerals - Location: Moab, UT, Moab, Utah, United States (unspecified) - Salary: Not disclosed - Posted: 2026-05-06 - Apply: https://jobs.ashbyhq.com/marianaminerals/66ba66fa-9431-4971-b757-75c8efed6e26 - Excerpt: Diamond/Core Driller Assistant Moab, UT, Moab, Utah, United States About Mariana Minerals Mariana Minerals is a software-first, vertically integrated minerals company on a mission to supply the critical minerals powering modern energy, AI, and defense technologies. We're reimagining the minerals supply chain by combining deep industry expertise with advanced software, automation, and data-driven decision-making. Our culture is built on three principles: - Extreme Ownership - We take full responsibility for outcomes, relentlessly driving toward solutions. - Engineer Out Requirements, then Automate - We simplify, optimize, and then automate for scale. - Share Your Legos - We collaborate openly, share knowledge, and empower each other to build bigger, better solutions. Join us as we build the future of responsible mineral sourcing and supply. Summary The Diamond/Core Driller Assistant supports drilling operations by assisting the Lead Driller with equipment setup, operation, maintenance, and site activities. This role requires physical endurance, attention to safety, and the ability to work in remote outdoor environments. The assistant plays a key role in ensuring efficient and safe core drilling operations. Responsibilities - Assist with setup, operation, and teardown of diamond/core drilling rigs - Handle drill rods, tooling, and core barrels during drilling operations - Retrieve, label, and store core samples accurately - Mix and manage drilling fluids and maintain circulation systems - Perform routine maintenance and basic repairs on drilling equipment - Keep the worksite clean, organized, and hazard-free - Load and unload equipment, supplies, and materials - Follow all safety procedures and environmental regulations - ### Drill and Blast Engineer - Mariana Minerals - Location: Moab, UT, Moab, Utah, United States (unspecified) - Salary: Not disclosed - Posted: 2026-03-23 - Apply: https://jobs.ashbyhq.com/marianaminerals/a879b24c-1cce-4ea0-908f-b529c9d22c72 - Excerpt: Drill and Blast Engineer Moab, UT, Moab, Utah, United States About Mariana Minerals Mariana Minerals is a software-first, vertically integrated minerals company on a mission to supply the critical minerals powering modern energy, AI, and defense technologies. We're reimagining the minerals supply chain by combining deep industry expertise with advanced software, automation, and data-driven decision-making. Our culture is built on three principles: - Extreme Ownership - We take full responsibility for outcomes, relentlessly driving toward solutions. - Engineer Out Requirements, then Automate - We simplify, optimize, and then automate for scale. - Share Your Legos - We collaborate openly, share knowledge, and empower each other to build bigger, better solutions. Join us as we build the future of responsible mineral sourcing and supply. The Role We are hiring a Drill & Blast Engineer to design, execute, and optimize drilling and blasting operations at our surface copper site in La Sal, UT. In this role, you will lead blast design, oversee drilling programs, and partner closely with mine operations to deliver safe, efficient, and cost effective fragmentation that supports high performance heap leach and excavation workflows. You'll work hands on at the mine site, integrating advanced design tools, data-driven reconciliation, and continuous improvement to push the boundaries of modern blasting performance-while upholding the highest standards of safety and regulatory compliance. What You'll Do Blast Design & Optimization - Develop and refine blast patterns and charge designs tailored to specific geotechnical domains across ore and waste. - Utilize ANFO, emulsions, bulk delivery ### IT Technician - Mariana Minerals - Location: Moab, UT, Moab, Utah, United States (unspecified) - Salary: Not disclosed - Posted: 2026-03-24 - Apply: https://jobs.ashbyhq.com/marianaminerals/036f4673-06ee-483b-9a50-22e32139a423 - Excerpt: IT Technician Moab, UT, Moab, Utah, United States About Mariana Minerals Mariana Minerals is a software-first, vertically integrated minerals company on a mission to supply the critical minerals powering modern energy, AI, and defense technologies. We're reimagining the minerals supply chain by combining deep industry expertise with advanced software, automation, and data-driven decision-making. Our culture is built on three principles: - Extreme Ownership - We take full responsibility for outcomes, relentlessly driving toward solutions. - Engineer Out Requirements, then Automate - We simplify, optimize, and then automate for scale. - Share Your Legos - We collaborate openly, share knowledge, and empower each other to build bigger, better solutions. Join us as we build the future of responsible mineral sourcing and supply. The Role The IT Technician will provide onsite technical support at a remote mine site, ensuring the reliability, security, and performance of all technology systems that support mining operations. This role supports endusers, network infrastructure, hardware, software, communication systems, and operational technology (OT) used in the field. The technician will troubleshoot issues, perform maintenance, manage equipment inventory, and work closely with the corporate IT team to maintain compliance with company standards. What You'll Do Technical Support & Troubleshooting - Provide onsite support for desktops, laptops, tablets, mobile devices, printers, and specialized mining equipment interfaces. - Diagnose and resolve hardware, software, and network issues in a highdemand, fastpaced environment. - Assist with installation, configuration, and updates of operating systems and applications. - Support minesite users with connectivity issues, authentication, VPN ### Logistics Coordinator (Mining and Recycling Operations) - Mariana Minerals - Location: Moab, UT, Moab, Utah, United States (unspecified) - Salary: Not disclosed - Posted: 2026-05-12 - Apply: https://jobs.ashbyhq.com/marianaminerals/5b9de317-008d-414e-be61-df0f0c4e9c0f - Excerpt: Logistics Coordinator (Mining and Recycling Operations) Moab, UT, Moab, Utah, United States About Mariana Minerals Mariana Minerals is a software-first, vertically integrated minerals company on a mission to supply the critical minerals powering modern energy, AI, and defense technologies. We're reimagining the minerals supply chain by combining deep industry expertise with advanced software, automation, and data-driven decision-making. Our culture is built on three principles: - Extreme Ownership - We take full responsibility for outcomes, relentlessly driving toward solutions. - Engineer Out Requirements, then Automate - We simplify, optimize, and then automate for scale. - Share Your Legos - We collaborate openly, share knowledge, and empower each other to build bigger, better solutions. Join us as we build the future of responsible mineral sourcing and supply. SUMMARY The Logistics Coordinator is responsible for planning, coordinating, and overseeing the movement of materials, equipment, and supplies to and from the mine site to ensure uninterrupted mining operations. This role supports production, maintenance, and construction activities while maintaining compliance with safety, environmental, and regulatory requirements in a mining environment. RESPONSIBILITIES Logistics & Supply Chain - Coordinate inbound and outbound transportation of materials, consumables, spare parts, and heavy equipment. - Schedule and monitor deliveries to ensure materials arrive on time and in the correct quantities. - Inspect copper scrap received on site to ensure deliveries are correct. - Manage freight providers and carriers for deliveries to mine site. - Support warehousing, laydown areas, and on-site material handling activities. - Track shipments and resolve delays, damages, ### Contract Building Information Modeling (BIM) Designer - Mariana Minerals - Location: Houston, TX, Houston, Texas, US, remote (remote) - Salary: Not disclosed - Posted: 2026-05-28 - Apply: https://jobs.ashbyhq.com/marianaminerals/f77f0db0-fc53-4856-bd8f-9d08bbc69b7b - Excerpt: Contract Building Information Modeling (BIM) Designer Houston, TX, Houston, Texas, US, remote About Mariana Minerals Mariana Minerals is a software-first, vertically integrated minerals company on a mission to supply the critical minerals powering modern energy, AI, and defense technologies. We're reimagining how minerals are sourced, refined, and optimized by combining deep industrial expertise with software, automation, and data-driven decision-making. Join us as we build the future of responsible mineral sourcing and supply. What You'll Do - Develop, update, and maintain 2D and 3D drawings and models using AutoCAD Plant 3D, Civil 3D, and Revit - Support multi-disciplinary layouts, including: - Equipment and general arrangement plans - Civil drawing support - Maintenance of CAD standards across projects - Ensure high accuracy and quality of drawings and models, with strict adherence to project and company standards - Support BIM and digital delivery workflows, including: - Model cleanup, coordination, and standardization - Assist with automation and efficiency improvements using basic scripting and tools such as Python, PowerShell, AutoLISP - Prepare drawings and models for design reviews, construction, and field execution - Maintain organized project files, templates, and documentation in accordance with internal CAD/BIM standards - Collaborate closely with engineers, project managers, and external consultants to provide drafting and modeling support - Assist with laser scanning registration from LiDAR and SLAM based scanners What You'll Bring - 3+ years' experience as a CAD Designer, CAD Drafter, BIM Designer or similar role - Strong proficiency in AutoCAD (Civil 3D, Plant 3D Preferred) - Experience working ### Leach Pad Technician - Mariana Minerals - Location: Moab, UT, Moab, Utah, United States (unspecified) - Salary: Not disclosed - Posted: 2026-03-24 - Apply: https://jobs.ashbyhq.com/marianaminerals/a111127a-97a7-4f84-838a-e7847d07c12a - Excerpt: Leach Pad Technician Moab, UT, Moab, Utah, United States About Mariana Minerals Mariana Minerals is a software-first, vertically integrated minerals company on a mission to supply the critical minerals powering modern energy, AI, and defense technologies. We're reimagining the minerals supply chain by combining deep industry expertise with advanced software, automation, and data-driven decision-making. Our culture is built on three principles: - Extreme Ownership - We take full responsibility for outcomes, relentlessly driving toward solutions. - Engineer Out Requirements, then Automate - We simplify, optimize, and then automate for scale. - Share Your Legos - We collaborate openly, share knowledge, and empower each other to build bigger, better solutions. Join us as we build the future of responsible mineral sourcing and supply. The Role The Leach Pad Technician is a hands on, field based role responsible for performing manual and equipment assisted labor on the leach pad to support safe and efficient copper production. You will operate heavy equipment, perform pipe welding and layout, and assist with day to day operational activities essential to maintaining optimal leach pad performance. This role requires physical stamina, adherence to safety protocols, and the ability to work in challenging outdoor conditions. You will report directly to the Leach Pad Supervisor and work closely with other technicians and process team members. What You'll Do - Weld HDPE pipe safely and effectively. - Perform daily pre-operation inspections on assigned equipment. - Operate heavy equipment including extendable boom forklifts and mini excavators. - Lay out, install, and ### Staff Product Manager - Mariana Minerals - Location: San Francisco HQ, San Francisco, California, US (unspecified) - Salary: Not disclosed - Posted: 2026-04-13 - Apply: https://jobs.ashbyhq.com/marianaminerals/5311bff2-7700-41fa-bac1-996eb717b2f6 - Excerpt: Staff Product Manager San Francisco HQ, San Francisco, California, US About Mariana Minerals Mariana Minerals is a software-first, vertically integrated minerals company on a mission to supply the critical minerals powering modern energy, AI, and defense technologies. We're reimagining the minerals supply chain by combining deep industry expertise with advanced software, automation, and data-driven decision-making. The Role We're hiring a Staff Product Manager to own a critical domain within MarianaOS. This is a single posting because we recruit for the strongest PMs first and then place them where the fit is best. Through the interview process, we'll figure out together which part of the system is the right match for your background and instincts. The scope of what we can touch is enormous. Mining is the last major industrial sector that hasn't been rebuilt with modern software. The opportunity set isn't a feature gap on an existing product - it's entire workflows and systems that don't exist yet. The problem space spans micron-scale chemistry to kilometer-scale infrastructure. Ship a feature and you can watch the needle move - recovery rates, reagent consumption, construction timelines, equipment uptime. These aren't proxy metrics. They're the actual physics of making metal. This role is On-site and will require significant travel. The Platform: MarianaOS MarianaOS is the digital nervous system for mineral projects. It spans the full lifecycle - from capital project execution through autonomous operations. The three domains make are staffing for right now are: - MineOS Integrates geologic block models, short and long-range ### Process & Lab Technician - Mariana Minerals - Location: Moab, UT, Moab, Utah, United States (unspecified) - Salary: Not disclosed - Posted: 2026-06-02 - Apply: https://jobs.ashbyhq.com/marianaminerals/52026074-5c89-43b6-a2b1-048f361f1174 - Excerpt: Process & Lab Technician Moab, UT, Moab, Utah, United States About Mariana Minerals Mariana Minerals is a software-first, vertically integrated minerals company on a mission to supply the critical minerals powering modern energy, AI, and defense technologies. We're reimagining the minerals supply chain by combining deep industry expertise with advanced software, automation, and data-driven decision-making. The Role We are hiring a Process & Lab Technician to support the safe, efficient, and high-quality process development studies and analytical tests. In this role, you will work closely with R&D and engineering to build, operate, and maintain ore leaching columns. You will also be responsible for timely, accurate, and actionable chemical analysis of ore, process streams, and final products. You will play a critical role in bridging leaching research and laboratory analytics with plant operations, helping ensure processes are robust, efficient, and suitable for future development & scale-up. What You'll Do - Procure and construct columns and ancillary equipment used to measure copper leaching fundamentals - Drive leaching column operations including taking routine samples, troubleshooting equipment issues, and maintaining high level of cleanliness - Drive ore handling including crushing, sorting by particle size, and taking representative samples - Prepare samples for analysis using techniques such as digestion, dilution, and/or filtration - Perform elemental and compositional analysis of solid and liquid samples using ICP, NMR, XRF, Titrator, or similar analytical techniques - Document analytical results in laboratory information systems and maintain clear experimental records and material metrics using digital tools and software - Follow ### Recruiting Coordinator - Mariana Minerals - Location: San Francisco HQ, San Francisco, California, US (unspecified) - Salary: Not disclosed - Posted: 2026-05-10 - Apply: https://jobs.ashbyhq.com/marianaminerals/a4032134-6f3e-4174-a440-8185a7aba758 - Excerpt: Recruiting Coordinator San Francisco HQ, San Francisco, California, US About Mariana Minerals Mariana Minerals is a software-first, vertically integrated minerals company on a mission to supply the critical minerals powering modern energy, AI, and defense technologies. We're reimagining the minerals supply chain by combining deep industry expertise with advanced software, automation, and data-driven decision-making. The Role We are hiring a contract Recruiting Coordinator to support and scale our hiring operations across technical and business roles. This role is critical in ensuring a seamless and high-quality candidate experience while enabling our recruiters and hiring managers to operate efficiently. You'll own scheduling, coordination, and candidate communications, while helping improve recruiting processes and systems. This is a high-impact role with exposure across the company and an opportunity to help build recruiting infrastructure from the ground up. What You'll Do - Coordinate and schedule interviews across multiple time zones - Manage candidate communications throughout the hiring process - Partner with recruiters and hiring managers to ensure smooth interview workflows - Maintain accurate candidate data in the ATS - Assist with job postings and role updates across platforms - Support offer coordination and onboarding logistics - Help track recruiting metrics and pipeline health - Identify and implement process improvements in recruiting operations - Ensure an exceptional, high-touch candidate experience Desired Qualifications - 1-3 years of experience in recruiting coordination, HR, or similar operations role - Strong organizational skills and attention to detail - Ability to manage multiple priorities in a fast-paced environment - Excellent written ### Field Engineering Intern - Mariana Minerals - Location: Moab, UT, Moab, Utah, United States (unspecified) - Salary: Not disclosed - Posted: 2026-04-14 - Apply: https://jobs.ashbyhq.com/marianaminerals/aea63917-11ec-4474-b417-e232192c14d4 - Excerpt: Field Engineering Intern Moab, UT, Moab, Utah, United States About Mariana Minerals Mariana Minerals is a software-first, vertically integrated minerals company on a mission to supply the critical minerals powering modern energy, AI, and defense technologies. We're reimagining the minerals supply chain by combining deep industry expertise with advanced software, automation, and data-driven decision-making. The Role We are hiring a Field Engineering Intern to work on real, high-impact problems within the Project Execution Team. You will contribute directly to the construction of the Lithium One refinery, working closely with engineers and domain experts. This role is designed to provide hands-on experience building and shipping solutions, not just supporting tasks. What You'll Do - Work on the construction execution of a greenfield Copper One including working with subcontractors, vendors, scheduling and budgeting resulting in successful execution of scopes. - Build, test, and iterate on solutions within MarianaOS including developing world class tracking and development of a software driven construction team. - Analyze data and field systems to identify inefficiencies, track progress against schedule, and optimize construction performance. - Collaborate with cross-functional team members including engineering, operations, and construction contractors to coordinate scope and resolve field issues. - Present outcomes, key learnings, and recommendations to the Project Execution Team at the end of the internship. Desired Qualifications - Currently pursuing a degree in Civil Engineering, Construction Engineering, or Construction Management. - Strong fundamentals in construction sequencing, reading drawings and specifications, and basic project controls. - Hands-on experience in construction, scheduling, estimating, or ### Project Controls Manager - Mariana Minerals - Location: Houston, TX, Houston, Texas, US (unspecified) - Salary: Not disclosed - Posted: 2026-06-11 - Apply: https://jobs.ashbyhq.com/marianaminerals/7f497f17-366d-4b59-b887-f3b57302ae61 - Excerpt: Project Controls Manager Houston, TX, Houston, Texas, US Mariana Minerals is a software-first, vertically integrated minerals company on a mission to supply the critical minerals powering modern energy, AI, and defense technologies. We're reimagining the minerals supply chain by combining deep industry expertise with advanced software, automation, and data-driven decision-making. Our culture is built on three principles: - Extreme Ownership - We take full responsibility for outcomes, relentlessly driving toward solutions. - Engineer Out Requirements, then Automate - We simplify, optimize, and then automate for scale. - Share Your Legos - We collaborate openly, share knowledge, and empower each other to build bigger, better solutions. Join us as we build the future of responsible mineral sourcing and supply. Position Summary We are hiring a Project Controls Manager to drive the systems, processes, and tools that ensure successful delivery of large-scale capital projects across mining and refining. This is a hands-on leadership role at the intersection of cost engineering, scheduling, risk management, and financial governance . You will partner closely with project executives, managers, engineers, and contractors to establish control frameworks, optimize project performance, and deliver predictable outcomes. This role is central to scaling Mariana's capital project execution and embedding our software-first mindset into how projects are planned, monitored, and delivered. What You'll do: - Develop, refine, and implement project controls systems, processes, and tools (cost, schedule, change, risk, progress) across large-scale mining capital projects. - Champion improvements in the Capital Project Operating System (Capital Project OS) . - Review, analyze, ### Mine Maintenance Technician - Mariana Minerals - Location: Moab, UT, Moab, Utah, United States (unspecified) - Salary: Not disclosed - Posted: 2026-01-16 - Apply: https://jobs.ashbyhq.com/marianaminerals/bc225483-29ab-4267-974c-3962fe7b1ae4 - Excerpt: Mine Maintenance Technician Moab, UT, Moab, Utah, United States About Mariana Minerals & Copper One Mariana Minerals is a growing natural resources company focused on developing and operating long-life copper assets in stable jurisdictions. Through its Copper One platform, Mariana Minerals owns and operates the Lisbon Valley Mining Company , a producing open-pit copper mine located in southeastern Utah. Lisbon Valley Mining Company utilizes modern surface mining methods-including drilling, blasting, loading, and hauling-to deliver ore to its crushing and heap leach processing facilities. Our success depends on safe, reliable equipment performance, supported by a skilled and safety-focused maintenance team. Position Summary The Mine Maintenance Technician plays a critical hands-on role in ensuring the reliability, safety, and performance of mobile mining equipment and supporting infrastructure. This position performs inspections, troubleshooting, repairs, and preventive maintenance on heavy equipment, support vehicles, and associated systems in both shop and field environments. The ideal candidate has strong mechanical aptitude, experience working in mining or heavy industrial environments, and a commitment to safe work practices. This role directly supports production by minimizing downtime, improving equipment health, and maintaining a safe and efficient operation. Key Responsibilities Equipment Maintenance & Repair - Perform mechanical, hydraulic, electrical, and pneumatic diagnostics and repairs on mobile mining equipment, including haul trucks, loaders, dozers, graders, and ancillary equipment. - Conduct preventive maintenance activities in accordance with OEM guidelines and established maintenance schedules. - Troubleshoot equipment failures, identify root causes, and implement effective corrective actions. - Service and repair auxiliary equipment such as ### Engineering Technician-Recycle - Mariana Minerals - Location: Moab, UT, Moab, Utah, United States (unspecified) - Salary: Not disclosed - Posted: 2026-05-08 - Apply: https://jobs.ashbyhq.com/marianaminerals/eb220d3d-8e73-415e-b096-a513c70bb0b4 - Excerpt: Engineering Technician-Recycle Moab, UT, Moab, Utah, United States About Mariana Minerals Mariana Minerals is a software-first, vertically integrated minerals company on a mission to supply the critical minerals powering modern energy, AI, and defense technologies. We're reimagining the minerals supply chain by combining deep industry expertise with advanced software, automation, and data-driven decision-making. The Role The Engineering Technician plays a critical technical role in bridging field operations with process engineering. In addition to equipment operation, this position serves as a key resource for interpreting engineering drawings, supporting equipment selection, and maintaining digital plant records. The ideal candidate combines handson mechanical aptitude with the ability to navigate technical documentation and CAD software to support both frontend material preparation processes and downstream chemical processing operations within the recycling facility. What You'll Do - Operate plant equipment including shredders, separators, conveyors, screens, and bagging systems. - Monitor material flow and equipment performance; adjust settings to meet quality and recovery targets. - Perform routine sampling, testing, and quality checks to support process and metallurgical control. - Troubleshoot mechanical, electrical, and processcontrol issues and support planned maintenance. - Record key operational data such as tonnage, downtime, system changes, and recovery metrics. - Maintain clean, safe work areas and follow all MSHA/OSHA, lockout/tagout, and hazardcommunication procedures. - Participate in safety meetings and support hazard reporting and continuousimprovement initiatives. - Collaborate with supervisors, engineers, and maintenance teams; communicate equipment or process issues clearly. - Support engineering projects with data collection, testing, and implementation of recommendations. - Provide ### People Systems & Programs Lead - Mariana Minerals - Location: San Francisco HQ, San Francisco, California, US, Houston, TX (unspecified) - Salary: Not disclosed - Posted: 2026-05-28 - Apply: https://jobs.ashbyhq.com/marianaminerals/b921d3a0-ba9d-49ee-a4d1-93612a784b42 - Excerpt: People Systems & Programs Lead San Francisco HQ, San Francisco, California, US, Houston, TX About Mariana Minerals Mariana Minerals is a software-first, vertically integrated minerals company on a mission to supply the critical minerals powering modern energy, AI, and defense technologies. We're reimagining the minerals supply chain by combining deep industry expertise with advanced software, automation, and data-driven decision-making. The Role We are hiring a People Systems & Programs Lead to build and scale the operational foundation of our People function across recruiting, HR systems, onboarding, and employee operations. This is a highly cross-functional role focused on designing efficient people processes, implementing scalable systems, and enabling exceptional employee and candidate experiences. You'll partner closely with leadership, recruiting, finance, and operations teams to streamline workflows, improve data visibility, and help build a modern, automation-first People organization. The ideal candidate brings a strong blend of recruiting operations, HR systems expertise, and process design experience, with the ability to operate strategically while remaining hands-on in execution. This role is ideal for someone excited about building infrastructure in a fast-moving, high-growth environment. What You'll Do - Own and improve People Operations processes across recruiting, onboarding, employee lifecycle management, and offboarding - Manage and optimize HRIS, ATS, and related People systems - Partner with recruiting teams to streamline hiring operations and candidate workflows - Build scalable reporting and dashboards for recruiting and people metrics - Drive process automation and operational efficiency across People functions - Ensure data integrity, compliance, and accurate employee records management - ### Mine Manager, Surface Operations - Mariana Minerals - Location: Moab, UT, Moab, Utah, United States (unspecified) - Salary: Not disclosed - Posted: 2026-03-25 - Apply: https://jobs.ashbyhq.com/marianaminerals/b9f29864-e7db-4cef-8303-6576f5e06db9 - Excerpt: Mine Manager, Surface Operations Moab, UT, Moab, Utah, United States About Mariana Minerals Mariana Minerals is a software-first, vertically integrated minerals company focused on supplying the minerals critical to modern energy, AI, and defense technologies. We are committed to operational excellence, safety, and innovation across all aspects of our business. Position Overview We are seeking a dynamic and results-oriented Mine Manager to lead all aspects of our surface mining operations. This pivotal role is responsible for ensuring safe, efficient, and cost-effective production while driving continuous improvement across drilling, blasting, loading, hauling, maintenance, and support functions. The ideal candidate will have a proven track record of delivering measurable cost savings, operational efficiencies, and safety enhancements, while fostering a high-performance, collaborative work culture. This is a hands-on leadership position requiring demonstrated experience in mine expansion, crushing/conveying systems, leach pad stacking, and brownfield & greenfield mine development. The successful candidate will be able to provide specific examples of initiatives that have led to tangible improvements in production, maintenance, operator performance, and personnel development. Key Responsibilities Operational Leadership & Cost Efficiency - Develop and execute mine plans to achieve production targets while optimizing costs. - Lead and document continuous improvement projects (e.g., mine sequencing, haul road design, maintenance strategy changes) with clear ROI and payback periods. - Oversee drilling and blasting operations to maximize fragmentation and minimize costs. - Manage haulage and loading operations to improve cycle times and reduce operating expenses. - Provide specific examples of initiatives that resulted in hard-dollar savings (e.g., ### Metallurgy Lead - Mariana Minerals - Location: Moab, UT, Moab, Utah, United States (unspecified) - Salary: Not disclosed - Posted: 2026-03-24 - Apply: https://jobs.ashbyhq.com/marianaminerals/c790a025-2c30-476c-a743-861bd143562e - Excerpt: Metallurgy Lead Moab, UT, Moab, Utah, United States Mariana Minerals is looking for a highly motivated Metallurgist to work on building back the domestic critical minerals supply chain. As a Metallurgist at Mariana, you'll play a critical role in supporting and optimizing our mineral processing operations across a range of unit processes, including heap leaching, solvent extraction and electrowinning (SX/EW), flotation, crushing, and milling. You'll work closely with operations, technical services, and project development teams to ensure high metal recoveries, efficient reagent use, and safe, compliant plant operations. This is a site-based role with regular exposure to both fieldwork and metallurgical analysis. Expect a fast-paced, hands-on environment where your contributions directly influence production and growth. What You'll Do Optimize Metallurgical Processes - Monitor and improve metallurgical performance across heap leach pads, SX/EW plants, flotation circuits, and comminution areas (crushing/milling). Identify bottlenecks, troubleshoot issues, and implement improvements to enhance throughput and recovery. Design and Execute Test Program - Plan and supervise metallurgical testwork (e.g., column leach tests, flotation tests, grinding studies). Interpret results to support operational changes or project decisions. Track and Report Metallurgical Performance - Conduct routine sampling, analysis, and metallurgical accounting. Maintain accurate records of metallurgical balances, recoveries, and plant efficiency metrics. Prepare internal reports and contribute to monthly technical summaries. Collaborate Across Teams - Work with operations, maintenance, and geology teams to integrate metallurgical insights into daily decision-making. Provide input to capital projects, equipment selection, and commissioning activities. Champion Safety and Compliance - Promote a strong safety culture ### Project Scheduler - Mariana Minerals - Location: Houston, TX, Houston, Texas, US (unspecified) - Salary: Not disclosed - Posted: 2026-06-08 - Apply: https://jobs.ashbyhq.com/marianaminerals/86661368-ecf7-4da9-a82b-fb089b8ec461 - Excerpt: Project Scheduler Houston, TX, Houston, Texas, US Mariana Minerals is a software-first, vertically integrated minerals company on a mission to supply the critical minerals powering modern energy, AI, and defense technologies. We're reimagining the minerals supply chain by combining deep industry expertise with advanced software, automation, and data-driven decision-making. Our culture is built on three principles: - Extreme Ownership - We take full responsibility for outcomes, relentlessly driving toward solutions. - Engineer Out Requirements, then Automate - We simplify, optimize, and then automate for scale. - Share Your Legos - We collaborate openly, share knowledge, and empower each other to build bigger, better solutions. Join us as we build the future of responsible mineral sourcing and supply. Position Summary The Project Scheduler is responsible for developing, maintaining, and analyzing integrated project schedules for engineering, procurement, construction, and commissioning activities. The Scheduler supports project planning, progress measurement, forecasting, and schedule risk analysis to ensure projects are delivered safely, on time, and within budget. Key Responsibilities - Develop and maintain detailed project schedules using Primavera P6 or equivalent scheduling software. - Prepare baseline schedules aligned with project scope, execution strategy, and milestones. - Monitor project progress and update schedules based on field data and contractor inputs. - Perform critical path analysis and identify schedule risks, delays, and recovery opportunities. - Support planning workshops, look-ahead schedules, and turnaround/shutdown planning activities. - Coordinate with engineering, procurement, construction, commissioning, and operations teams. - Prepare schedule performance reports, KPIs, and executive-level presentations. - Analyze schedule variances ### Local Hire (Emergency Management Specialist 4) - Department of Homeland Security - Location: Saipan, Mariana Island, Northern Mariana Islands (unspecified) - Salary: Not disclosed - Posted: 2026-06-10 - Hires in: MP - Apply: https://www.usajobs.gov:443/job/872623600 - Excerpt: Local Hire (Emergency Management Specialist 4) Saipan, Mariana Island, Northern Mariana Islands Summary The Federal Emergency Management Agency (FEMA) has an immediate need to employ temporary local hires to assist with disaster response and recovery efforts in Saipan, Mariana Island MP. Local hire employees are typically local residents who aid in the recovery of their community and help their fellow citizens in the recovery process. A local hire's term of employment is 120 days. Local Hire appointments may be extended, in 120-day increments, based on the needs of the disaster. Duties What will I do in this position if hired? In this Local Hire (Emergency Management Specialist 4) position, you will you will prepare emergency management plans and policies, procedures, and risk assessments to ensure essential functions are executed in the recovery of all types of hazards, and are consistent with statutory and agency requirements and coordinate with senior level specialists on concepts of recovery operations for individuals, individuals with disabilities and/or public assistance programs. Typical assignments include: Providing technical assistance and planning support to customers and stakeholders. Determining resource requirements and capabilities to enable program delivery and performance. Managing and analyzing disability-related information to identify gaps, trends, and actionable recommendations to improve services and outcomes. Preparing plans and policies, procedures, and assessments to ensure essential functions are executed, and are consistent with statutory and agency requirements. What else do I need to know? This announcement is for a position as a FEMA Local Hire. Local Hire employees help FEMA ### Local Hire (Emergency Management Specialist 2) - Department of Homeland Security - Location: Saipan, Mariana Island, Northern Mariana Islands (unspecified) - Salary: Not disclosed - Posted: 2026-06-10 - Hires in: MP - Apply: https://www.usajobs.gov:443/job/872623400 - Excerpt: Local Hire (Emergency Management Specialist 2) Saipan, Mariana Island, Northern Mariana Islands Summary The Federal Emergency Management Agency (FEMA) has an immediate need to employ temporary local hires to assist with disaster response and recovery efforts in Saipan, Mariana Island, MP. Local hire employees are typically local residents who aid in the recovery of their community and help their fellow citizens in the recovery process. A local hire's term of employment is 120 days. Local Hire appointments may be extended, in 120-day increments, based on the needs of the disaster. Duties What will I do in this position if hired? In this Local Hire (Emergency Management Specialist 2) position, you will assist with the implementation of disaster response, recovery services and programs in aiding individuals and communities impacted by disasters. Typical assignments include: Assisting in preparing plans and policies, procedures, and assessments to ensure essential functions are executed, and are consistent with statutory and agency requirements. Analyzing resource requirements and capabilities to enable program delivery and performance. Providing advice, guidance, and interpretation to customers and stakeholders on a variety of recovery issues. Assisting with performing on-site damage assessments and recommendations for follow-up actions. What else do I need to know? This announcement is for a position as a FEMA Local Hire. Local Hire employees help FEMA respond to, recover from and mitigate hazards by performing a variety of emergency management functions which are not limited to disaster survivor assistance, conducting and verifying damage assessments, and providing administrative, financial and logistical ### Sample Prep Technician - Minerals - Intertek - Location: Kershaw, SC, United States (unspecified) - Salary: Not disclosed - Posted: 2026-05-26 - Apply: https://hcog.fa.em2.oraclecloud.com/hcmUI/CandidateExperience/en/sites/CX_2001/requisitions/job/14750 - Excerpt: Sample Prep Technician - Minerals Kershaw, SC, United States Intertek, a leading provider of ATIC (Assurance, Testing, Inspection, and Certification) Services, is looking for a Minerals Sample Prep Technician to join our Minerals team. Intertek Minerals provides geochemical assay and testing services, minerals inspection and trade services to support the minerals and mining supply chain globally from grassroots exploration to final product shipment. With industry-recognized technical expertise and an established global network, Intertek offers end to end Total Quality Assurance across our clients' entire resource development chain. ### Experienced Miner - Hecla Mining - Location: Greens Creek, Juneau, AK, US (unspecified) - Salary: Not disclosed - Posted: 2026-05-23 - Apply: https://workforcenow.adp.com/mascsr/default/mdf/recruitment/recruitment.html?cid=504a8d7d-d303-417f-b3a8-c052ad910668&ccId=19000101_000001&lang=en_US&jobId=9200832056080_1 - Excerpt: Experienced Miner Greens Creek, Juneau, AK, US Experienced Miner ### Mineral Management Intern - Whitley Penn - Location: TX Dallas; TX Fort Worth; TX Houston; TX Midland; TX Odessa (unspecified) - Salary: Not disclosed - Posted: 2026-06-10 - Apply: https://recruiting.ultipro.com/WHI1006WPL/JobBoard/bf9b8b62-5ece-4a4f-aa1f-97eba460105c/OpportunityDetail?opportunityId=8284a70b-ea02-4bec-b298-3283c29457ad - Excerpt: Mineral Management Intern TX Dallas; TX Fort Worth; TX Houston; TX Midland; TX Odessa As a Mineral Management Intern, you will gain hands-on experience supporting mineral management and land-related activities within the oil and gas industry. This role provides exposure to lease analysis, title research, ownership tracking, and client-facing communications. Interns will work alongside experienced professionals and landmen to develop a foundational understanding of mineral ownership and asset management. ### On Call Critical Minerals Expert - Remote - Icf International Inc - Location: Washington, District of Columbia, United States of America (remote) - Salary: Not disclosed - Posted: 2026-03-04 - Apply: https://icf.wd5.myworkdayjobs.com/ICFExternal_Career_Site/job/Washington-DC/On-Call-Critical-Minerals-Expert---Remote_R2600659/apply - Excerpt: On Call Critical Minerals Expert - Remote Washington, District of Columbia, United States of America Join our team as a Senior Critical Minerals Expert and drive innovation in the critical minerals and materials supply chain. Support federal and state clients, accelerate mining and recycling projects, and contribute to energy innovation. Enjoy flexible, remote work arrangements while making a real impact on national security and sustainability. ### On Call Critical Minerals Expert - Remote - ICF International INC - Location: Washington, DC (remote) - Salary: $90K-$152K - Posted: 2026-05-12 - Hires in: DC, WA - Apply: https://icf.wd5.myworkdayjobs.com/ICFExternal_Career_Site/job/Washington-DC/On-Call-Critical-Minerals-Expert---Remote_R2600659 - Excerpt: On Call Critical Minerals Expert - Remote Washington, DC Senior Critical Minerals Expert (On-Call, Part-Time/Hourly/Remote) Are you a critical minerals and materials expert with a deep understanding of the end-to-end supply chain-from mining and mineral processing to manufacturing, recycling, and commercialization? We need you. ICF is seeking an on-call Critical Minerals Expert to support work with the ICF's federal, state, local, and private sector clients. This is a remote, on-call role that provides flexibility to work from zero to 30+ hours per week, depending on project needs. In this role, you will help advance priorities aligned with U.S. Department of Energy (DOE) Office of Critical Minerals and Energy Innovation (CMEI) direction-including efforts to accelerate mining activities, diversify critical mineral and metals supply chains, stimulate innovation in processing and metallurgy, expand battery and magnet research, and facilitate recycling (including black mass and other battery materials). You may also support collaboration and engagement activities aligned with DOE's broader innovation ecosystem for critical materials-focused on coordination, commercialization, workforce development, and industry adoption of new technologies. What you will be doing: Providing subject matter expertise across the critical minerals and materials value chain (upstream mining to downstream manufacturing and circularity), with emphasis on U.S. supply chain resilience and energy innovation priorities. Supporting DOE CMEI technical and programmatic efforts related to: Mining and mineral production acceleration and modernization Processing, separation, refining, and metallurgy innovation Battery, magnet, and advanced materials supply chains Recycling and circular economy approaches, including battery materials Producing or reviewing high-quality client deliverables ### Miner - Ssr Mining Inc - Location: Saskatoon, SK, Canada (unspecified) - Salary: Not disclosed - Posted: 2026-05-21 - Apply: https://ssrmining.wd108.myworkdayjobs.com/SSR_Mining_Careers/job/Saskatoon-SK-Canada/Miner_R3083 - Excerpt: Miner Saskatoon, SK, Canada posted: Posted 22 Days Ago ### Quality Supervisor - Moog Inc. - Location: Mineral Wells, TX (unspecified) - Salary: Not disclosed - Posted: 2026-05-12 - 401(k) match: listed (source-backed) - Source: https://www.askebsa.dol.gov/FOIA%20Files/2024/Latest/F_SCH_H_2024_Latest.zip - Apply: https://moog.wd5.myworkdayjobs.com/MOOG_External_Career_Site/job/Mineral-Wells-TX/Quality-Supervisor_R-25-15419 - Excerpt: Quality Supervisor Mineral Wells, TX posted: Posted 30+ Days Ago ### Proposal Manager - Moog Inc. - Location: Mineral Wells, TX (unspecified) - Salary: Not disclosed - Posted: 2026-06-05 - 401(k) match: listed (source-backed) - Source: https://www.askebsa.dol.gov/FOIA%20Files/2024/Latest/F_SCH_H_2024_Latest.zip - Apply: https://moog.wd5.myworkdayjobs.com/MOOG_External_Career_Site/job/Mineral-Wells-TX/Proposal-Manager_R-26-18165 - Excerpt: Proposal Manager Mineral Wells, TX posted: Posted 7 Days Ago ### Industrial Engineer - Moog Inc. - Location: Mineral Wells, TX (unspecified) - Salary: Not disclosed - Posted: 2026-05-12 - 401(k) match: listed (source-backed) - Source: https://www.askebsa.dol.gov/FOIA%20Files/2024/Latest/F_SCH_H_2024_Latest.zip - Apply: https://moog.wd5.myworkdayjobs.com/MOOG_External_Career_Site/job/Mineral-Wells-TX/Industrial-Engineer_R-26-16084 - Excerpt: Industrial Engineer Mineral Wells, TX posted: Posted 30+ Days Ago ### Construction Miner - Ssr Mining Inc - Location: Saskatoon, SK, Canada (unspecified) - Salary: Not disclosed - Posted: 2026-05-12 - Apply: https://ssrmining.wd108.myworkdayjobs.com/SSR_Mining_Careers/job/Saskatoon-SK-Canada/Construction-Miner_R2981 - Excerpt: Construction Miner Saskatoon, SK, Canada posted: Posted 30+ Days Ago ### Engineering Technician - Moog Inc. - Location: Mineral Wells, TX (unspecified) - Salary: Not disclosed - Posted: 2026-05-20 - 401(k) match: listed (source-backed) - Source: https://www.askebsa.dol.gov/FOIA%20Files/2024/Latest/F_SCH_H_2024_Latest.zip - Apply: https://moog.wd5.myworkdayjobs.com/MOOG_External_Career_Site/job/Mineral-Wells-TX/Engineering-Technician_R-26-17644-1 - Excerpt: Engineering Technician Mineral Wells, TX posted: Posted 23 Days Ago ### Shaft Miner - Agnico Eagle Mines Limited - Location: Ontario-Dobie-Upper Beaver (unspecified) - Salary: Not disclosed - Posted: 2026-06-10 - Apply: https://agnicoeagle.taleo.net/careersection/2/jobdetail.ftl?job=142167&lang=en - Excerpt: Shaft Miner Ontario-Dobie-Upper Beaver ### Mineral Management Associate - Whitley Penn - Location: TX Dallas; TX Fort Worth; TX Houston; TX Odessa; TX Midland (unspecified) - Salary: Not disclosed - Posted: 2026-06-10 - Apply: https://recruiting.ultipro.com/WHI1006WPL/JobBoard/bf9b8b62-5ece-4a4f-aa1f-97eba460105c/OpportunityDetail?opportunityId=5b0b4258-df15-4f96-80c9-f9f0d26a76fe - Excerpt: Mineral Management Associate TX Dallas; TX Fort Worth; TX Houston; TX Odessa; TX Midland The Mineral Management Associate is responsible for supporting client engagements related to mineral ownership, lease analysis, and title review. This role is highly client-facing and requires strong communication skills, attention to detail, and a working knowledge of oil and gas operations. Ideal candidates may come from land, division order, or related industry backgrounds. ### Operador(a) Processo Mineral I - MG - Mosaic Company (The) - Location: Location not specified (unspecified) - Salary: Not disclosed - Posted: 2026-05-12 - 401(k) match: listed (source-backed) - Source: https://www.askebsa.dol.gov/FOIA%20Files/2024/Latest/F_SCH_H_2024_Latest.zip - Apply: https://mosaic.wd5.myworkdayjobs.com/mosaic/job/Operador-a--Processo-Mineral-I---MG_46415 - Excerpt: Operador(a) Processo Mineral I - MG Location not specified posted: Posted 30+ Days Ago ### Engineering Test Pilot - Moog Inc. - Location: Mineral Wells, TX (unspecified) - Salary: Not disclosed - Posted: 2026-05-12 - 401(k) match: listed (source-backed) - Source: https://www.askebsa.dol.gov/FOIA%20Files/2024/Latest/F_SCH_H_2024_Latest.zip - Apply: https://moog.wd5.myworkdayjobs.com/MOOG_External_Career_Site/job/Mineral-Wells-TX/Engineering-Test-Pilot_R-26-16351 - Excerpt: Engineering Test Pilot Mineral Wells, TX posted: Posted 30+ Days Ago ### Senior Project Coordinator - Moog Inc. - Location: Mineral Wells, TX (unspecified) - Salary: Not disclosed - Posted: 2026-06-04 - 401(k) match: listed (source-backed) - Source: https://www.askebsa.dol.gov/FOIA%20Files/2024/Latest/F_SCH_H_2024_Latest.zip - Apply: https://moog.wd5.myworkdayjobs.com/MOOG_External_Career_Site/job/Mineral-Wells-TX/Senior-Project-Coordinator_R-26-18044 - Excerpt: Senior Project Coordinator Mineral Wells, TX posted: Posted 8 Days Ago ### Avionics Systems Engineer - Moog Inc. - Location: Mineral Wells, TX (unspecified) - Salary: Not disclosed - Posted: 2026-05-12 - 401(k) match: listed (source-backed) - Source: https://www.askebsa.dol.gov/FOIA%20Files/2024/Latest/F_SCH_H_2024_Latest.zip - Apply: https://moog.wd5.myworkdayjobs.com/MOOG_External_Career_Site/job/Mineral-Wells-TX/Avionics-Systems-Engineer_R-25-12686 - Excerpt: Avionics Systems Engineer Mineral Wells, TX posted: Posted 30+ Days Ago ### Regulatory Reporting Specialist, Responsible Minerals and Human Rights Compliance - Google - Location: Austin, TX, USA; +1 more (unspecified) - Salary: $136K-$197K - Posted: 2026-06-04 - Parental leave: 18 weeks (not source-backed) - Non-birth-parent leave: 18 weeks (not source-backed) - 401(k) match: listed (source-backed) - Source: https://www.askebsa.dol.gov/FOIA%20Files/2024/Latest/F_SCH_H_2024_Latest.zip - Apply: https://www.google.com/about/careers/applications/signin?jobId=CiUAL2FckbecVcg8IKhvJp1TDk-hTYxYQ3GJlzwzU-crUqGKc70QEjsACxwdTPIgyDjch9f877tt6LuKjuJIUT9aLv-RmoyHzphEM1xuKTTbjIwJOzF9bgJ3YUUQl7D8W88gJQ%3D%3D_V2&loc=US&title=Regulatory+Reporting+Specialist - Excerpt: Regulatory Reporting Specialist, Responsible Minerals and Human Rights Compliance Austin, TX, USA; +1 more As the Responsible Minerals and Human Rights Compliance Regulatory Reporting Specialist, you will play a critical role in advancing our Responsible Minerals Program strategy, executing key initiatives across Alphabet and Google, and managing conflict minerals, anti-modern slavery, and human rights compliance and regulatory reporting obligations. You will work with a cross-functional set of stakeholders across Alphabet, including teams embedded in product areas responsible for operationalizing supplier responsibility and responsible minerals program efforts. You have a multidisciplinary skillset, program and project management experience, regulatory reporting experience, great business acumen, and a passion for ethics and integrity.Individual pay is determined by factors including job-related skills, experience, and relevant education or training. US: $136000 - $197000 (USD) + 15% bonus target + bonus + equity + benefits Learn more about benefits at Google . Lead the Responsible Minerals program by establishing core processes, conducting gap analyses, and driving continuous program improvements and adoption across the enterprise. Manage annual scoping for global regulations across Alphabet and Google, including the Dodd-Frank Act, EU Conflict Minerals and Battery Regulations, and anti-modern slavery and human rights due diligence laws. Manage the drafting and publication of mandatory annual disclosures, such as the Alphabet Conflict Minerals Report, Statement Against Modern Slavery and the Norwegian Transparency Act Statement. Conduct annual risk analyses required by human rights laws, and assist with reviewing, developing, and documenting internal policies and procedures to align with the EU Corporate Sustainability Due ### Miner 3, Mucker - Agnico Eagle Mines Limited - Location: Ontario-Kirkland Lake-Macassa (unspecified) - Salary: Not disclosed - Posted: 2026-06-10 - Apply: https://agnicoeagle.taleo.net/careersection/2/jobdetail.ftl?job=138398&lang=en - Excerpt: Miner 3, Mucker Ontario-Kirkland Lake-Macassa ### Mineral Asset Manager/ SAM Associate III - Bank of America Corporation - Location: Fort Worth (unspecified) - Salary: Not disclosed - Posted: 2026-06-05 - Apply: https://ghr.wd1.myworkdayjobs.com/lateral-us/job/Fort-Worth/Mineral-Asset-Manager--SAM-Associate-III_26015503-2 - Excerpt: Mineral Asset Manager/ SAM Associate III Fort Worth posted: Posted 7 Days Ago ### Longhole Blaster, Miner 2 (NSUR) - Agnico Eagle Mines Limited - Location: Ontario-Kirkland Lake-Macassa (unspecified) - Salary: Not disclosed - Posted: 2026-06-10 - Apply: https://agnicoeagle.taleo.net/careersection/2/jobdetail.ftl?job=140637&lang=en - Excerpt: Longhole Blaster, Miner 2 (NSUR) Ontario-Kirkland Lake-Macassa ### BC Underground Miner (Outby) Experienced and Inexperienced - Warrior Met Coal Inc - Location: Berry, AL (unspecified) - Salary: Not disclosed - Posted: 2026-05-12 - 401(k) match: listed (source-backed) - Source: https://www.askebsa.dol.gov/FOIA%20Files/2024/Latest/F_SCH_H_2024_Latest.zip - Apply: https://coal.wd1.myworkdayjobs.com/Warrior_Met_Coal/job/Berry-AL/BC-Underground-Miner--Outby--Experienced-and-Inexperienced_R2748 - Excerpt: BC Underground Miner (Outby) Experienced and Inexperienced Berry, AL posted: Posted 30+ Days Ago ### Principal Avionics Systems and Flight Test Engineer - Moog Inc. - Location: Mineral Wells, TX (unspecified) - Salary: Not disclosed - Posted: 2026-05-12 - 401(k) match: listed (source-backed) - Source: https://www.askebsa.dol.gov/FOIA%20Files/2024/Latest/F_SCH_H_2024_Latest.zip - Apply: https://moog.wd5.myworkdayjobs.com/MOOG_External_Career_Site/job/Mineral-Wells-TX/Principal-Avionics-Systems-and-Flight-Test-Engineer_R-26-16295 - Excerpt: Principal Avionics Systems and Flight Test Engineer Mineral Wells, TX posted: Posted 30+ Days Ago ### Oil and Gas Accounting Operations Admin - Whitley Penn - Location: TX Houston (unspecified) - Salary: Not disclosed - Posted: 2026-06-08 - Apply: https://recruiting.ultipro.com/WHI1006WPL/JobBoard/bf9b8b62-5ece-4a4f-aa1f-97eba460105c/OpportunityDetail?opportunityId=5ef3a376-cdee-4dba-a0fc-bd9e7c0b2957 - Excerpt: Oil and Gas Accounting Operations Admin TX Houston Whitley Penn, a leading CPA and Consulting firm, is looking for an Oil and Gas Accounting Operations Admin to join our Mineral Management team in Houston. Mineral Management represents mineral owners and non-operated working interest partners to maintain, manage, and maximize ownership to provide lasting revenue streams and opportunities within the oil and gas space ### Underground General Inside Labor (Experienced Underground Miners Only) - Warrior Met Coal Inc - Location: Brookwood, AL (unspecified) - Salary: Not disclosed - Posted: 2026-05-12 - 401(k) match: listed (source-backed) - Source: https://www.askebsa.dol.gov/FOIA%20Files/2024/Latest/F_SCH_H_2024_Latest.zip - Apply: https://coal.wd1.myworkdayjobs.com/Warrior_Met_Coal/job/Brookwood-AL/Underground-General-Inside-Labor--Experienced-Underground-Miners-Only-_R2500 - Excerpt: Underground General Inside Labor (Experienced Underground Miners Only) Brookwood, AL posted: Posted 30+ Days Ago ### AV Technician - Curtiss-Wright - Location: Client Site - USA - WI - Madison - 5810 Mineral Point Rd (unspecified) - Salary: Not disclosed - Posted: 2026-05-27 - Apply: https://cw.wd1.myworkdayjobs.com/External/job/Client-Site---USA---WI---Madison---5810-Mineral-Point-Rd/AV-Technician_R321062 - Excerpt: AV Technician Client Site - USA - WI - Madison - 5810 Mineral Point Rd posted: Posted 16 Days Ago ### Administrative Assistant - Curtiss-Wright - Location: Client Site - USA - WI - Madison - 5810 Mineral Point Rd (unspecified) - Salary: Not disclosed - Posted: 2026-05-29 - Apply: https://cw.wd1.myworkdayjobs.com/External/job/Client-Site---USA---WI---Madison---5810-Mineral-Point-Rd/Administrative-Assistant_R322319 - Excerpt: Administrative Assistant Client Site - USA - WI - Madison - 5810 Mineral Point Rd posted: Posted 14 Days Ago ### Nurse Technician - Med/Surg Miner 7 - Full-Time - Nights - NewYork-Presbyterian Hospital - Location: NYP/Brooklyn Methodist Hospital (unspecified) - Salary: Not disclosed - Posted: 2026-05-22 - Apply: https://nyp.wd1.myworkdayjobs.com/nypcareers/job/NYPBrooklyn-Methodist-Hospital/Nurse-Technician---Med-Surg-Miner-7---Full-Time---Nights_00879450-1 - Excerpt: Nurse Technician - Med/Surg Miner 7 - Full-Time - Nights NYP/Brooklyn Methodist Hospital posted: Posted 21 Days Ago ### Banco de Talentos Operador de Processo Mineral I ( Pessoa com Deficiência) - Catalão/GO - Mosaic Company (The) - Location: Location not specified (unspecified) - Salary: Not disclosed - Posted: 2026-05-12 - 401(k) match: listed (source-backed) - Source: https://www.askebsa.dol.gov/FOIA%20Files/2024/Latest/F_SCH_H_2024_Latest.zip - Apply: https://mosaic.wd5.myworkdayjobs.com/mosaic/job/Banco-de-Talentos-Operador-de-Processo-Mineral-I---Pessoa-com-Deficincia----Catalo-GO_44294 - Excerpt: Banco de Talentos Operador de Processo Mineral I ( Pessoa com Deficiência) - Catalão/GO Location not specified posted: Posted 30+ Days Ago ### Geologist - Department of the Interior - Location: Carlsbad, New Mexico (unspecified) - Salary: $103K-$134K - Posted: 2026-06-12 - Hires in: NM - Apply: https://www.usajobs.gov:443/job/872831700 - Excerpt: Geologist Carlsbad, New Mexico Summary This position is located within the Department of the Interior, Bureau of Land Management, Division of Lands & Minerals, CARLSBAD, NEW MEXICO. We expect to fill 1 vacancy/vacancies at this time; however, additional positions may be filled from this announcement if they become available. Duties Independently plans, conducts, and prepares reports and decisions affecting mineral development projects. Prepares subsurface contour maps and cross sections of oil and gas fields and mineral deposits based on correlation and interpretation of geophysical well logs, seismographic data, and geostatistical data in manual and electronic database formats. Provides geologic data and analysis to support calculations of resource and fair market values of tracts offered for mineral leasing or disposal, this includes both solid and fluid minerals. Prepares comprehensive maps and interpretative reports describing results of field observations and office studies; establishing the character and potential value of the lands with respect to drainage protection or lease development. Prepares comprehensive geologic reports, studies, for all phases of land-use planning efforts including resource management and activity plans. Review drilling applications for geologic integrity and ensures protection of subsurface resource by providing recommendations to the Branch of Fluid operations. Reviews exploratory, secondary, and gas storage unit agreement proposals for geologic integrity, equity and fairness in participation formulas, and proper development and establishment of participation areas. Reviews drilling and recompletion activity and production history of all oil and gas wells within the area assigned to detect drainage of Federal or Indian minerals or the ### Registered Nurse - RN - Med/Surg Miner 7 - Full-time - Days - NewYork-Presbyterian Hospital - Location: NYP/Brooklyn Methodist Hospital (unspecified) - Salary: Not disclosed - Posted: 2026-06-09 - Apply: https://nyp.wd1.myworkdayjobs.com/nypcareers/job/NYPBrooklyn-Methodist-Hospital/Registered-Nurse---RN---Med-Surg-Miner-7---Full-time---Days_00881475-1 - Excerpt: Registered Nurse - RN - Med/Surg Miner 7 - Full-time - Days NYP/Brooklyn Methodist Hospital posted: Posted 3 Days Ago ### Experienced Underground Miner - Rogers Communications Inc. - Location: Crestwood, KY, United States (unspecified) - Salary: Not disclosed - Posted: 2026-05-15 - Apply: https://hdhf.fa.us6.oraclecloud.com/hcmUI/CandidateExperience/en/sites/CX_2001/requisitions/job/21004947 - Excerpt: Experienced Underground Miner Crestwood, KY, United States Rogers Group is currently seeking an Experienced Underground Miner at Oldham County Stone, which is an underground mine in Crestwood, KY. This position is responsible for safely operating a variety of mining equipment while providing a safe working environment for all underground personnel. Wages starting at $25.00/hr. for. The successful candidate for this role will have experience operating mining equipment in an underground mining environment, and an uncompromising focus on safety excellence. General work around the quarry and other assigned duties may also be requested. ### Night Shift Underground Miner - Rogers Communications Inc. - Location: Gallatin, TN, United States (unspecified) - Salary: Not disclosed - Posted: 2026-06-11 - Apply: https://hdhf.fa.us6.oraclecloud.com/hcmUI/CandidateExperience/en/sites/CX_2001/requisitions/job/21005045 - Excerpt: Night Shift Underground Miner Gallatin, TN, United States Rogers Group is looking for a Night Shift Underground Miner to work out of the Gallatin Quarry in Gallatin, TN. The successful candidate for this role will have experience operating mining equipment in an underground mining environment, and an uncompromising focus on safety excellence. In addition to operating equipment, this individual may be required to work with the blasting process or on the ground maintaining safety items and keeping the mine well ventilated. General work around the quarry and other assigned duties may also be required. Wages starting at $26.00/hr. ### Land Law Examiner (Minerals) - Department of the Interior - Location: Carlsbad, New Mexico (unspecified) - Salary: $50K-$80K - Posted: 2026-06-12 - Hires in: NM - Apply: https://www.usajobs.gov:443/job/872817200 - Excerpt: Land Law Examiner (Minerals) Carlsbad, New Mexico Summary Explore a new career with the BLM - where our people are our most precious resource. This position is a Carlsbad, New Mexico, GS- 0965-5/7/9 working in Santa Fe, New Mexico for the NMP00-PECOS DISTRICT OFFICE. There will be one position filled at either the GS-07 or GS-09 level. We expect to fill one vacancies at this time; however, additional positions may be filled from this announcement if they become available. Please Note: if selected at the GS-07 full performance level will be GS-09. Duties Collects data on a variety of assigned cases related to lands, oil and gas, mining or minerals cases. Determines the accuracy and proper execution of applications or claims and the qualifications of applicants for legal rights as requested. Adjudicate routine lands, mining, or mineral leasing applications filed which have more complex statutory and regulatory provisions, require development and review of a considerable amount of data and involve controversial factual situations. Determines the accuracy and proper execution of applications or claims and the qualifications of applicants. Prepares routine correspondence, including decisions, to process cases. Drafts progressively complex adjudication decisions (concerning lands, mining, oil and gas, or mineral leasing cases). Independently gathers and researches information and data necessary to complete and adjudicate a legal document. Utilizes data, systems and applications to collect, enter, manipulate, update and maintain data according to prescribed Bureau and program standards. Education PROOF OF EDUCATION: All applicants who are using education or a combination of ### FUL - Land Law Examiner (Minerals) - Department of the Interior - Location: Carlsbad, New Mexico (unspecified) - Salary: $50K-$80K - Posted: 2026-06-12 - Hires in: NM - Apply: https://www.usajobs.gov:443/job/872816400 - Excerpt: FUL - Land Law Examiner (Minerals) Carlsbad, New Mexico Summary Explore a new career with the BLM - where our people are our most precious resource. This position is a Carlsbad, New Mexico, GS- 0965-5/7/9 working in Santa Fe, New Mexico for the NMP00-PECOS DISTRICT OFFICE. There will be one position filled at either the GS-07 or GS-09 level. We expect to fill one vacancies at this time; however, additional positions may be filled from this announcement if they become available. Please Note: if selected at the GS-07 full performance level will be GS-09. Duties Collects data on a variety of assigned cases related to lands, oil and gas, mining or minerals cases. Determines the accuracy and proper execution of applications or claims and the qualifications of applicants for legal rights as requested. Adjudicate routine lands, mining, or mineral leasing applications filed which have more complex statutory and regulatory provisions, require development and review of a considerable amount of data and involve controversial factual situations. Determines the accuracy and proper execution of applications or claims and the qualifications of applicants. Prepares routine correspondence, including decisions, to process cases. Drafts progressively complex adjudication decisions (concerning lands, mining, oil and gas, or mineral leasing cases). Independently gathers and researches information and data necessary to complete and adjudicate a legal document. Utilizes data, systems and applications to collect, enter, manipulate, update and maintain data according to prescribed Bureau and program standards. Education PROOF OF EDUCATION: All applicants who are using education or a ### Attorney Advisor (International) (Public Notice Flyer) - Department of Commerce - Location: Washington, District of Columbia (unspecified) - Salary: $122K-$187K - Posted: 2026-04-28 - Hires in: DC - Apply: https://www.usajobs.gov:443/job/866845800 - Excerpt: Attorney Advisor (International) (Public Notice Flyer) Washington, District of Columbia Summary The Commercial Law Development Program (CLDP) of the Office of the General Counsel, U.S. Department of Commerce, is seeking an individual with exceptional analytical, organizational, and interpersonal communication skills to join our team of international technical assistance Attorney-Advisors to partner with countries and counterparts to advance shared prosperity, diversify energy critical minerals supply chains, and advance energy and mineral governance partnerships. Duties The CLDP team consists of highly skilled lawyers, trade experts, and international program specialists with deep knowledge of commercial law, international trade and business, and economic development. With fluency in over 35 languages, CLDP staff work directly with foreign governments to advance U.S. interests abroad while helping host countries achieve their economic development objectives. CLDP partners with various offices within the U.S. Department of Commerce, other federal agencies, the U.S. judiciary, and international organizations to help countries draft laws and regulations, strengthen legal institutions, and train officials to ensure fair and predictable environments for business. CLDP's Energy and Minerals Team provides legal technical support in partnership with host governments developing their minerals and energy resources. Specifically, this Attorney-Advisor will: Consult with senior foreign government officials; Assess development needs and barriers to investment; Design, implement legal reform technical assistance programs that meet the host countries' economic development needs and are in line with U.S. foreign policy goals in energy and minerals. To implement the technical assistance programs, the Attorney Advisor will: Organize and deliver expert legal advice on ### Experienced Underground Miner - Beckley Complex - Core Natural Resources Inc - Location: Beckley, WV 25801, USA (unspecified) - Salary: Not disclosed - Posted: 2026-06-10 - Apply: https://jobs.dayforcehcm.com/en-US/consol/CANDIDATEPORTAL/jobs/862 - Excerpt: Experienced Underground Miner - Beckley Complex Beckley, WV 25801, USA Experienced Underground Miner - Beckley Complex Beckley, WV 25801, USA Posted Saturday, January 24, 2026 Position Summary This position is an experienced underground equipment operator. Responsible for extracting coal safely and efficiently, using a variety of equipment and techniques. Job Summary of Essential Duties Accept, embrace & promote the core values of Core Natural Resources: Safety, Sustainability, and Continuous Improvement Ensure the company's "Absolute ZERO" safety culture is embedded in all work performed This person must be self-motivated, skilled and dependable. Responsible for the safe and efficient production of coal and/or assistance in the production of coal in general work areas Additionally, this person may be required to perform non-equipment operator tasks and duties such as shoveling, building/maintaining ventilation controls, assisting in various maintenance and repair duties on mine equipment and other manual related tasks and duties as needed. Must safely, effectively, and efficiently work and respond to changing conditions within the mine Must comply with company policies, federal and state laws, and regulatory standards Minimum Requirements Most possess a Valid West Virginia Underground Coal Miner Certification Must have a minimum of 3-year underground mining experience Required to safely operate at least two of the following underground mining machines; Scoop, Shuttle Car, Roof Bolter (Prefer Fletcher DDR or HDDR) or Continuous Miner. Must be available to work overtime, weekends and holidays as schedule requires Must be able to work a 4-week shift rotation Must be able to work safely and ### Staff Global Sourcing Manager, Critical Minerals & Mining (Germanium) - Anduril - Location: Costa Mesa, California, United States (unspecified) - Salary: $191K-$253K - Posted: 2026-05-26 - Apply: https://boards.greenhouse.io/andurilindustries/jobs/5146884007?gh_jid=5146884007 - Excerpt: Staff Global Sourcing Manager, Critical Minerals & Mining (Germanium) Costa Mesa, California, United States Anduril Industries is a defense technology company with a mission to transform U.S. and allied military capabilities with advanced technology. By bringing the expertise, technology, and business model of the 21st century's most innovative companies to the defense industry, Anduril is changing how military systems are designed, built and sold. Anduril's family of systems is powered by Lattice OS, an AI-powered operating system that turns thousands of data streams into a realtime, 3D command and control center. As the world enters an era of strategic competition, Anduril is committed to bringing cutting-edge autonomy, AI, computer vision, sensor fusion, and networking technology to the military in months, not years. ABOUT THE JOB The Staff Global Sourcing Manager, Critical Minerals is the domain expert and single-threaded leader for a designated critical mineral (e.g., rare earth magnets, germanium, tungsten, antimony, gallium) at Anduril Industries. This is a high-impact role focused on securing the raw materials that power our products against a backdrop of concentrated geopolitical risk, volatile pricing, and opaque multi-tier supply chains. As the lead for your assigned mineral, you will own the global mandate end-to-end: market intelligence, tiered supply chain mapping, supplier and government relationship management, should-cost modeling, contracting, and stockpiling strategy. You will operate as the hub of a cross-functional pod to translate Anduril's aggregate demand into a resilient sourcing strategy that enhances supplies from US-friendly sources, protects BOM cost, and ensures continuity of supply across ### Director of Mineral Processing - KoBold Metals - Location: Remote (remote) - Salary: $150K-$300K - Posted: 2026-04-10 - Apply: https://job-boards.greenhouse.io/koboldmetals/jobs/4681468005 - Excerpt: Director of Mineral Processing Remote Director of Mineral Processing About the Company The mining industry has steadily become worse at finding new ore deposits, requiring >10X more capital to make discoveries compared to 30 years ago. The easy-to-find, near-surface deposits have largely been found, and the industry has chronically under-invested in new exploration technology, relying on the manual techniques of yesteryear - even as demand accelerates for copper, lithium, and other metals to build electric vehicles, renewable energy, and data centers. KoBold builds AI models for mineral exploration and deploys those models-alongside our novel sensors-to guide decisions on KoBold-owned-and-operated exploration programs. In the six years since founding, KoBold has become by far both the largest independent mineral exploration company and the largest exploration technology developer. Our data scientists and software engineers, who come from leading technology companies, jointly lead exploration programs with our renowned exploration geologists. KoBold has proven its first discovery with materially less capital than the industry average and found one of the best copper deposits ever discovered: the copper is far more concentrated than the global average of copper mines, and this asset alone is expected to generate meaningful revenue for decades. KoBold has a portfolio of more than 60 other projects, each of which has the potential for another high-quality discovery. KoBold is privately held; investors include institutional asset managers T. Rowe Price and Canada Pension Plan Investments; technology venture capitalists Andreessen Horowitz, Breakthrough Energy Ventures, BOND Capital, Durable Capital, StepStone, and Standard Investments; and natural ### Principal Global Sourcing Manager, Critical Minerals & Mining (Germanium) - Anduril - Location: Costa Mesa, California, United States (unspecified) - Salary: $253K-$336K - Posted: 2026-05-27 - Apply: https://boards.greenhouse.io/andurilindustries/jobs/5147282007?gh_jid=5147282007 - Excerpt: Principal Global Sourcing Manager, Critical Minerals & Mining (Germanium) Costa Mesa, California, United States Anduril Industries is a defense technology company with a mission to transform U.S. and allied military capabilities with advanced technology. By bringing the expertise, technology, and business model of the 21st century's most innovative companies to the defense industry, Anduril is changing how military systems are designed, built and sold. Anduril's family of systems is powered by Lattice OS, an AI-powered operating system that turns thousands of data streams into a realtime, 3D command and control center. As the world enters an era of strategic competition, Anduril is committed to bringing cutting-edge autonomy, AI, computer vision, sensor fusion, and networking technology to the military in months, not years. ABOUT THE JOB The Principal Global Sourcing Manager, Critical Minerals is the domain expert and single-threaded leader for a designated critical mineral (e.g., rare earth magnets, germanium, tungsten, antimony, gallium) at Anduril Industries. This is a high-impact role focused on securing the raw materials that power our products against a backdrop of concentrated geopolitical risk, volatile pricing, and opaque multi-tier supply chains. As the lead for your assigned mineral, you will own the global mandate end-to-end: market intelligence, tiered supply chain mapping, supplier and government relationship management, should-cost modeling, contracting, and stockpiling strategy. You will operate as the hub of a cross-functional pod to translate Anduril's aggregate demand into a resilient sourcing strategy that enhances supplies from US-friendly sources, protects BOM cost, and ensures continuity of supply across ### Bailey Mine - Experienced Miner - Core Natural Resources Inc - Location: Bailey Mine, 192 Crabapple Road, Wind Ridge, Pennsylvania, United States of America (unspecified) - Salary: Not disclosed - Posted: 2026-06-10 - Apply: https://jobs.dayforcehcm.com/en-US/consol/CANDIDATEPORTAL/jobs/1191 - Excerpt: Bailey Mine - Experienced Miner Bailey Mine, 192 Crabapple Road, Wind Ridge, Pennsylvania, United States of America Bailey Mine - Experienced Miner Bailey Mine, 192 Crabapple Road, Wind Ridge, Pennsylvania, United States of America Posted Wednesday, May 6, 2026 Position Title: Experienced Miner Location: Bailey Mine Position Summary This position is an experienced level mining position and is assigned to the underground mining operations. It will provide work directly to the safe operation of mining equipment, maintenance of equipment, and general labor support for all underground operations. Target Responsibilities Accept, Embrace, and Promote the Core Values of Core Resources' including Safety, Sustainability, and Continuous Improvement Must safely, effectively, and efficiently work and respond to changing conditions within the mine Must be able to safely operate underground mining equipment Must ensure that body mechanics, equipment, and tools are utilized in a safe and responsible manner Responsible for the safe and efficient production of coal and/or assistance in the production of coal in general work areas Requires being reliable, responsible, and dependable, and fulfilling obligations Must comply with company policies, federal and state laws, and regulatory standards Minimum Requirements Must be 18 years of age Must have a minimum of 1-year underground mining experience Requires Pennsylvania Experienced Miner Certificate. Must be available to work overtime, weekends and holidays as schedule requires Must be able to work as scheduled and arrive to the worksite promptly to receive work assignment and prepare for the start of the shift Must be able to work a ### Senior Global Sourcing Manager, Critical Minerals & Mining (Germanium) - Anduril - Location: Costa Mesa, California, United States (unspecified) - Salary: $166K-$220K - Posted: 2026-05-22 - Apply: https://boards.greenhouse.io/andurilindustries/jobs/4970908007?gh_jid=4970908007 - Excerpt: Senior Global Sourcing Manager, Critical Minerals & Mining (Germanium) Costa Mesa, California, United States Anduril Industries is a defense technology company with a mission to transform U.S. and allied military capabilities with advanced technology. By bringing the expertise, technology, and business model of the 21st century's most innovative companies to the defense industry, Anduril is changing how military systems are designed, built and sold. Anduril's family of systems is powered by Lattice OS, an AI-powered operating system that turns thousands of data streams into a realtime, 3D command and control center. As the world enters an era of strategic competition, Anduril is committed to bringing cutting-edge autonomy, AI, computer vision, sensor fusion, and networking technology to the military in months, not years. ABOUT THE JOB The Senior Global Sourcing Manager, Critical Minerals (Germanium) is the domain expert and single-threaded leader for a designated critical mineral (e.g., rare earth magnets, germanium, tungsten, antimony, gallium) at Anduril Industries. This is a high-impact role focused on securing the raw materials that power our products against a backdrop of concentrated geopolitical risk, volatile pricing, and opaque multi-tier supply chains. As the lead for your assigned mineral, you will own the global mandate end-to-end: market intelligence, tiered supply chain mapping, supplier and government relationship management, should-cost modeling, contracting, and stockpiling strategy. You will operate as the hub of a cross-functional pod to translate Anduril's aggregate demand into a resilient sourcing strategy that enhances supplies from US-friendly sources, protects BOM cost, and ensures continuity of supply ### Delivery Driver(06964) Mineral Wells - Domino's - Location: Mineral Wells, TX, United States (unspecified) - Salary: Not disclosed - Posted: 2026-06-12 - 401(k) match: listed (source-backed) - Source: https://www.askebsa.dol.gov/FOIA%20Files/2024/Latest/F_SCH_H_2024_Latest.zip - Apply: https://jobs.smartrecruiters.com/Dominos/743999866694376-delivery-driver-06964-mineral-wells - Excerpt: Delivery Driver(06964) Mineral Wells Mineral Wells, TX, United States Company Description: Come join LoneStar Pizza! We are a company who wants to make a difference in our team members lives and in our community. Job Description: ABOUT THE JOB Do you know why Domino's Pizza hires so many drivers? Well, aside from the fact that our delicious pizza is the perfect solution for dinner for families all across the nation - we do it because we can. What do we mean by that, you ask? We mean that we offer a great flexible schedule that offers the hours you're looking for. That means you're free when you need to be. You'll have plenty of time left over for school, to hang with your friends, or whatever. Even if you need a second job for some extra cash, Domino's Pizza is the perfect place for you. Right now Domino's is looking for qualified drivers to staff stores in your area. We're growing so fast it's hard to keep up, and that means Domino's has lots of ways for you to grow (if that's what you want), perhaps to management, perhaps beyond. Whether it's your hobby, main-gig, or supplemental job, apply online. We're bound to have just the thing for you. JOB REQUIREMENTS AND DUTIES You must be 18 years of age and have a valid driver's license with a safe driving record meeting company standards as well as access to an insured vehicle which can be used for delivery. You should ### TECHNICAL SPECIALIST II - TE Connectivity - Location: Job Country India (unspecified) - Salary: Not disclosed - Posted: 2026-06-12 - 401(k) match: listed (source-backed) - Source: https://www.askebsa.dol.gov/FOIA%20Files/2024/Latest/F_SCH_H_2024_Latest.zip - Apply: https://careers.te.com/job/BANGALORE-TECHNICAL-SPECIALIST-II-KA-560048/150339-en_US/ - Excerpt: TECHNICAL SPECIALIST II Job Country India At TE, you will unleash your potential working with people from diverse backgrounds and industries to create a safer, sustainable and more connected world. Job Overview The India Engineering Services is providing a value-added service to global TE engineering team and its customers in terms of Product Compliance and Conflict Mineral's activity. Support TE affiliates and direct customers on product compliance and conflict mineral activities Setting up of overall product compliance direction by communicating corporate objective for development / implementation of the global product compliance within the team. Ensure the Business unit products comply with all TE Environmental regulations. Drive adherence and implementation of TE PEC policies and legislative requirements within the India team. Supervising supplier material declarations and compliance coding activities. Interface with internal requestors & external suppliers/customers to have resolution on topics related to material declarations The India Engineering Services is providing a value-added service to global TE engineering team and its customers in terms of Product Compliance and Conflict Mineral's activity. Support TE affiliates and direct customers on product compliance and conflict mineral activities Setting up of overall product compliance direction by communicating corporate objective for development / implementation of the global product compliance within the team. Ensure the Business unit products comply with al --- Source-backed benefit claims include source links; other benefit values are labeled separately.