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Project Engineering Manager - Houston

Mariana Minerals - Houston, TX, Houston, Texas, US

Posted Apr 24, 2026

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About this role

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

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