MP Materials · 3 weeks ago
Metallurgy Technician
Mountain Pass, CA
Full-time
Hybrid
Entry Level
$31/hr - $39/hr
1+ years expMP Materials is a leader in rebuilding American industrial capability with a focus on rare earth supply chains. The Metallurgy Technician will support mineral processing research and development projects, contributing to advancements in mineral processing technology.
IndustrialMiningSustainability
Responsibilities
Collect and prepare samples from the mill and flotation circuits
Perform laboratory testing, including froth flotation and related mineral processing experiments
Operate laboratory and pilot-scale equipment such as crushers, grinders, filters, sieves, shakers, and flotation cells
Accurately record observations, test conditions, and results; assist with preliminary data analysis
Maintain and organize lab supplies, equipment, and test areas
Support process development initiatives, including evaluation of new flotation reagents, technologies, and process improvements
Communicate test results and observations clearly to engineers and other team members
Follow all safety protocols and actively identify potential hazards
Collaborate with cross-functional teams including Process Development, Mill Operations, Mining, Maintenance, and Analytical Services
Perform additional tasks as directed by management
Qualification
Required
Strong interest in mining, geology, mineral processing, or related earth sciences
1+ year experience in a lab, mining, mineral processing, chemical, petroleum, or heavy industrial setting (preferred)
Ability to follow technical instructions and keep accurate, legible records
Safety-oriented mindset and willingness to accept personal responsibility for safe work practices
Minimum High School Diploma/GED required
Valid Driver's License and clean driving record (required to operate company vehicles on site)
Preferred
Prior experience in mineral processing, especially froth flotation (big plus)
Experience in laboratory sample preparation, wet chemistry, or mineral processing tests
College-level coursework in chemistry, geology, mining, or materials engineering
Associate or bachelor's degree in a related discipline preferred
Mechanical aptitude and ability to work with lab/pilot-scale equipment
Familiarity with analytical tools (e.g., XRF) and sample preparation techniques
Company
MP Materials
MP Materials provides a sustainable, low-cost supply chain of coveted materials that help power the modern economy.
1001-5000 employees
H1B Sponsorship
MP Materials has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (9)
2024 (5)
2023 (2)
2022 (3)
2020 (2)
Funding
Current Stage
Public CompanyTotal Funding
$2.38BKey Investors
JP Morgan ChaseU.S. Department of DefenseDepartment of Defense’s Office of Strategic Capital (OSC)
2025-08-25Post Ipo Debt· $275M
2025-07-16Post Ipo Equity· $650M
2025-07-10Post Ipo Equity· $400M
Leadership Team
Alan Lund
Executive Vice President, Magnetics
Recent News
The Motley Fool
2026-01-11
2026-01-11
San Francisco Chronicle
2026-01-11
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