Metallurgy Technician — Flotation & Lab R&D

MP Materials; Mountain Pass (CA); On-site; USD 55,000 - 90,000; Full time

Job summary

MP Materials, Mountain Pass, CA, seeks a Metallurgy Technician to support mineral processing R&D, including flotation reagent testing, process chemistry trials, and lab-to-plant scale evaluations.

You will work with Process Technology and Engineering, Mill Operations, Mining, and Analytical Services; strong safety culture and willingness to work overtime when needed. This hands-on role offers exposure to cutting-edge mineral processing work in a fast-paced environment.

Qualifications

• Background in mining, geology, mineral processing, or earth sciences is required.
• 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 to operate company vehicles on site.

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.

Skills

Mining/geology interest

Lab/mineral processing experience

Record keeping

Safety mindset

Driver's license

Follow technical instructions

Education

High School Diploma or GED

Associate or Bachelor degree preferred

Tools

Froth flotation equipment

XRF familiarity

Job description

MP Materials, Mountain Pass, CA, seeks a Metallurgy Technician to support mineral processing R&D, including flotation reagent testing, process chemistry trials, and lab-to-plant scale evaluations.

You will work with Process Technology and Engineering, Mill Operations, Mining, and Analytical Services; strong safety culture and willingness to work overtime when needed. This hands-on role offers exposure to cutting-edge mineral processing work in a fast-paced environment.