Sr. Site Development Engineer

Benefits

Parental leave

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Non-birth-parent leave

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Family-building benefits

• Fertility benefits: Not verified
• Adoption assistance: Not verified
• Surrogacy assistance: Not verified

Mental health support

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Relocation assistance

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Childcare support

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Learning budget

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Verification

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Salary

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401(k) match

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Market context

U.S. role benchmark (BLS OEWS)

$116,543 U.S. median for this role

Projected growth (BLS Employment Projections)

+9.8% - Much faster than average

Matched to SOC 15-1252 - Software Engineering aggregate by role bucket.

Source: U.S. Bureau of Labor Statistics, OEWS, May 2024 and Employment Projections, 2024-2034.

Role

Role function

Engineering From the posting source checked Jun 20, 2026

Seniority

Senior From the posting source checked Jun 20, 2026

Schedule

Shift type

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Weekend work

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Application

Cover letter

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Assessment

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Deadline

Not stated

Where they hire

State eligibility is not yet verified.

About this role

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

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