Mechanical Engineer at Mariana Minerals
- Company: Mariana Minerals
- Location: San Francisco HQ
- Employment type: Full-time
- Salary: $100K – $150K • Offers Equity
- Posted: 2026-09-02
About the role
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 Engineer 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.…
Apply on Mariana Minerals's official careers page: https://jobs.ashbyhq.com/marianaminerals/3fa2126a-adfb-444c-a3ad-76d0305074da