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About the Role
Mariana Minerals is seeking a highly motivated Associate Metallurgical Engineer to support process development activities and pilot-scale testing for our CopperOne mine pilot facility in San Francisco. This is a hands-on, entry-level role where you will help transition technologies from laboratory research to pilot testing and ultimately commercial mining.
Responsibilities
- Operate, troubleshoot, and improve leaching columns and other pilot-scale processing equipment in collaboration with technicians
- Design and execute pilot-scale experiments with guidance from senior engineers
- Develop and maintain key process documentation including PFDs, P&IDs, operating procedures, and mass balances
- Analyze experimental and operational data to help identify opportunities for process improvement
- Support development of automated monitoring and optimization tools in collaboration with software and machine learning teams
- Support safe operations by following EHS procedures and assisting with hazard assessments, risk management, and management of change processes
Requirements
- B.S. or M.S. in Chemical Engineering, Mining Engineering, Metallurgy, or a related field
- 0–2 years of relevant experience through internships, research, co-ops, or full-time work
- Strong problem-solving skills and an interest in experimental process development
- Experience analyzing data using Excel, Python, MATLAB, or similar tools is a plus
- Strong commitment to Health, Safety, and Environmental compliance
- Excellent technical writing, communication, and teamwork skills
- Comfortable working in a fast-paced environment, learning new skills, and collaborating across teams
Skills
- Excel
- Python
- MATLAB
Location
- San Francisco
Work Type
- Full-time
Experience Level
- Entry-level
- 0-2 years
Education Level
- B.S. or M.S. in Chemical Engineering, Mining Engineering, Metallurgy, or a related field
About the Company
- 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.
- Our culture is built on three principles: Extreme Ownership, Engineer Out Requirements, then Automate, and Share Your Legos.
- Join us as we build the future of responsible mineral sourcing and supply.