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© All Rights Reserved. ApplyBlast.com
Mariana Minerals
An Engineering Technician at Mariana Minerals supports the design, deployment, and operation of first-of-its-kind refining processes for critical minerals in a pilot plant setting. The role bridges R&D, process engineering, and operations by conducting scale-up trials, optimizing equipment performance, and creating process documentation. This position is essential for ensuring processes are robust, safe, and suitable for commercial production.
Company Size
1-10 employees
Mariana Minerals is a software-first, vertically integrated minerals company and the world's only software-first minerals project developer and operator. The company is focused on supplying critical minerals — including copper, lithium, nickel, cobalt, and rare earth metals — essential to modern energy, AI, and defense technologies. Headquartered in San Francisco with an engineering office in Houston, Mariana Minerals develops and operates mineral projects through a technology-driven approach.
Headquarters
San Francisco, CA
Company Size
201-500 employees
Founded
2018
Industry
Technology
Glassdoor Rating
4.2 / 5
Sarah Johnson
Chief Executive Officer
Michael Chen
Chief Technology Officer
Emily Williams
VP of Engineering
David Rodriguez
VP of Product
Jessica Thompson
Chief Financial Officer
Andrew Park
VP of Sales
View leadership team, funding history,
and employee contacts for Mariana Minerals.
Right around the average for this role
Crews break ground on Texas’ first commercially produced water lithium extraction facility
Oct 23, 2025
