Company Overview:
MP Materials (NYSE: MP) is rebuilding American industrial capability for a new era of autonomy, robotics, and electrification.
We are the only U.S. company with a fully integrated rare earth supply chain—from mining and refining to advanced metal and magnet manufacturing. Our products include both the critical materials used to make permanent magnets and the finished magnets themselves—enabling next-generation technologies in robotics, automation, aerospace, transportation, defense, and energy systems. These materials are the foundation of physical AI—the convergence of computation, movement, and control.
We hire ambitious, mission-driven people who want to tackle complex challenges and shape the future of strategic industries. Our culture is rooted in teamwork, resiliency, and integrity, with a deep commitment to operational excellence and national purpose. MP is rapidly evolving from a materials producer into a leading U.S. manufacturer—and our people are driving that transformation.
Position Overview:
As an Operations Supervisor at our Mountain Pass site, you will serve as a frontline leader, driving safe, efficient, and disciplined daily plant operations. You’ll lead by example, championing safety, maximizing performance, and instilling a culture of accountability, ownership, and pride. This role demands strong leadership in both field and control room settings, sound decision-making under pressure, and the ability to foster a team-oriented culture where safe, consistent, and high-quality results are the standard.
Essential Duties:
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Lead and support a team through daily operations in mineral processing and chemical productions.
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Frontline leadership, in the field, with your team.
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Ensure execution of daily plans is safe, efficient, and aligned with production goals.
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Drive a strong, team-first culture grounded in accountability, communication, and performance.
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Solve problems in real time, monitor production data, troubleshoot issues, and escalate appropriately.
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Set clear expectations, hold the line, and train team members to develop technical and leadership skills.
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Collaborate with cross-functional teams & leads and communicate clearly up and down the chain.
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Ensuring compliance with safety procedures, environmental protocols, and HR policy.
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Handle other operational tasks as assigned by leadership.
Basic Qualifications:
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A proven leader with at least 3 years of experience in chemical, mining, or heavy industrial operations.
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Deep working knowledge of processing systems, equipment, and safety-critical operations.
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Comfortable with fieldwork and process oversight—from control rooms to pump pads.
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Able to build trust, give direct feedback, and uphold standards without micromanaging.
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Safety-focused, integrity-driven, and mission-aligned.
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Familiar with SCADA, PLC/HMI systems, Process Data Visualization and Historian Interfaces.
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Familiar with mechanical systems: kilns, dryers, thickeners, filter presses, pumps, valves, reactor tanks, wet scrubbers, heat exchangers.
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Valid driver's license and clean record (required to operate company vehicles).
Desired Qualities:.
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Able to read and apply PFDs and P&IDs for process oversight.
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Chemical Processing (Experience in solvent extraction, hydrometallurgy, chlor-alkali, ion exchange, and wet chemistry operations).
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Must be proficient in Microsoft Office (Word, Excel and Outlook)
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Experience with ERP and payroll/HR systems preferred
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Excellent written and verbal skills required
MP Materials is Proud to be an Equal Opportunity / Affirmative Action Employer
All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, protected veteran status, or any other characteristic protected by law. Underrepresented groups/Women/Disabled/Veterans are encouraged to apply. Candidates whose disabilities make them unable to meet the position’s requirements will still be considered qualified if they can perform the essential functions of the job with reasonable accommodation.
Your Right to Work – In compliance with federal law, all persons hired will be required to verify identity and eligibility to work in the United States and to complete the required employment verification document form upon hire.
For Assistance with Application - Alternative methods of applying for employment are available to individuals unable to submit an application through this site because of a disability. Contact Human Resources Department at 702-844-6111; dial 7 when prompted for HR;1700 South Pavilion Center Dr. 8th Floor, Las Vegas, NV 89135 to discuss reasonable accommodation.
Safety Provision - Employees are responsible for following all company, industry and regulatory procedures and laws to ensure a safe work environment for themselves and the company. Employees must have a willingness to promote safety among the workforce, participate in Process Hazard Analysis procedures and Pre-Startup Safety Reviews.
(PPE) Personal Protective Equipment is required when performing work in a mine, manufacturing, outdoor, or plant environment. Required PPE may include, but is not limited to, hard hat, hearing protection, safety glasses, safety footwear, respirator, rubber steel-toe boots, protective clothing, gloves, and any other protective equipment as required.
Working Conditions - Our facility sits at an elevation of 4,700 feet. Employees may be subject to extreme weather conditions when working in an outdoor setting (heat and cold, wind). Work is at an open pit mine or manufacturing/chemical plant setting, which may include exposure to moving mechanical parts, toxic chemicals, risk of electrical shock, explosives, fumes, or airborne particles.
Physical Demands - Manual dexterity; sense of touch; sense of smell; speaking clearly; hearing-speech range; hearing – all ranges; seeing, reading and comprehensions; seeing – distant/near; depth perception; color vision. While performing the job responsibilities, the employee is required to talk and hear. The employee is often required to stand and use their hands and fingers, to handle or feel and to manipulate laboratory equipment. The employee is occasionally required to walk, reach with arms and hands, climb or balance, and to stoop, kneel, crouch or crawl. Vision abilities required by this job include close vision. Employees must pass a full-face respiratory fit test. Employees must be able to lift 50 lbs. Must be able to work in PPE level C. These requirements are representative, but not all-inclusive, of the knowledge, skill, and ability required of the employee.
