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Sr./Staff Mechanical Engineer

Mariana Minerals is hiring for Sr./Staff Mechanical Engineer in San Francisco HQ. Senior level. First seen October 8, 2026; open as of November 12, 2026. Jobs taken straight from company career pages — no aggregator in between.

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Company
Mariana Minerals
Where
San Francisco HQ
Level
Senior
First seen
October 8, 2026
Listed via
Ashby

What the posting says

ROLE OVERVIEW Mariana Minerals is looking for a highly motivated Sr./Staff Mechanical Engineer to work on building the critical minerals supply chain to support the world’s energy transition. As a Mechanical 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 project execution and plant optimization. You will design, build, and commission mineral processing and metallurgical refining equipment, develop first-principles-based models of refining equipment and processes,…

Read more and apply on Mariana Minerals' site

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