R&D Technician is open at Marianaminerals in San Francisco HQ. The posting gives a salary of $40 - $47 an hour. Posted on Oct 29, 2026, and still on Marianaminerals’s careers page when we last checked, on Nov 14, 2026.
About the role
The R&D Technician executes designed experiments and operates chemical processing equipment to advance Mariana Minerals' hydrometallurgical and purification technologies. This hands-on role focuses on running DOE protocols, operating tank reactors and purification systems, and analyzing data to optimize extraction and separation processes for critical minerals. What You'll Do - Execute Design of Experiments (DOE)…
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
