Staff Process Modeling Engineer is open at Marianaminerals in Houston, TX. The posting gives a salary of $100K - $160K. Posted on Oct 21, 2026, and still on Marianaminerals’s careers page when we last checked, on Nov 14, 2026.
About the role
Mariana Minerals is seeking a highly motivated Staff 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…
The opening lines of the posting. The rest is on Marianaminerals’s careers page.
Hiring at Marianaminerals
Marianaminerals has 102 open roles right now. Most are in Engineering, Manufacturing & Trades and Operations. The median advertised salary across its roles with a published range is $160K. See all its roles
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