Heavy Mobile Equipment Mechanic

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Full Time Mountain Pass, CA, US

Salary Range: $34.52 To $46.49 Hourly

MP Materials (NYSE: MP) is rebuilding American industrial capability for a new era of autonomy, robotics, and electrification.

We are the only US 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 US manufacturer—and our people are driving that transformation.

As a Heavy Mobile Equipment Mechanic, you will be responsible to inspect, service and maintain a range of heavy-duty mining equipment.

• Perform diagnostic, maintenance and repair of heavy equipment such as excavators, dozers, haul trucks, front end loaders, water trucks, motor graders, pick-ups and other support equipment.
• Perform the removal, repair and installation of engines, transmissions, brakes, differentials, torque converters, final drives, cylinders and other heavy equipment systems and components.
• Perform routine Preventative Maintenance on mining equipment and support equipment systems such as hydraulic, power train, engine, emission systems and Ground Engaging tools.
• Perform diagnostic troubleshooting through the use of diagnostic laptops, service manuals and equipment manufacturer online support sites.
• Safely operate mobile equipment such as:
  Service trucks, overhead cranes, forklifts and boom truck.
• Perform welding and cutting functions such as:
  Oxygen/Acetylene torch, Carbon Arc, Mig and Stick welding.
• Perform hose building in the hose room to replace blown and damaged hydraulic hoses on equipment.
• Assist in maintaining inventory of service kits, lubes, oils, and other supplies.
• Document work performed and parts used on work orders.
• Perform daily work area and equipment inspections and fill out documentation as needed and required.
• Coordinate equipment service activities with production and maintenance team members.
• Perform tasks from verbal/written instructions and communicate effectively with supervisor and fellow employees.
• Keep work area clean and orderly.
• Complete daily work assignments in a timely fashion.
• Actively callout on the 2-way radio system point-to-point movement at all times on the active haul road and around Mine Equipment.
• Be a leader of both safety and production for the team by ensuring compliance with all company safety policies, procedures and environmental regulations.
• Actively participate in safety huddles.
• Always maintain a preparedness to deploy spill kits in the event of a spill with fuel or other lubricant. Actively participate in the cleanup of any spills arising from your duties.
• Must be able to perform work wearing personal protective gear including hard hat, safety glasses, safety footwear, hearing protection, respirator, protective clothing, gloves, face shield and any other protective equipment as required.
• Other duties as assigned.

• Minimum 5 years’…