Supervisor, Prototyping

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.

About the Role

We are seeking a hands-on Supervisor to support the Magnet Technology group in developing advanced manufacturing technologies for high-performance rare earth permanent magnets. The Supervisor will lead a team of technicians transforming raw materials into finished rare earth magnets at a pilot-scale operation. This role involves planning and managing resources across the end-to-end magnet-making processes to meet the pilot plant production schedule. This is a rare opportunity to play a key role in returning an essential manufacturing capability to the USA.

Responsibilities

• Schedule and manage technicians’ work to ensure on-time completion of each step of the operation.
• Monitor labor efficiencies and redeploy labor as required to meet the production schedule.
• Monitor manufacturing processes to ensure product yields and quality standards are met.
• Manage and train employees, including hiring, scheduling, and performance evaluations.
• Develop and maintain production procedures and instructions, and ensure they are followed by all employees.
• Operate and maintain pilot plant equipment for prototyping magnets with occasional support for production operations.
• Partner with Engineering, Maintenance, and Quality teams to identify improvement opportunities, investigate process deviations, and implement robust corrective actions.
• Lead efforts to maintain a clean, organized, and safe workplace.
• Work closely with EHS to ensure world-class health and safety, and full compliance with relevant environmental regulations.
• Other duties as assigned.

Requirements

• 5+ years of operation experience in manufacturing.
• Experience managing and training technicians and operators.
• Strong attention to detail.
• Comfortable with record keeping in both physical and electronic formats.
• Strong discipline in following safety practices and standard work instructions.
• Proven ability to work independently while collaborating within cross-functional teams.
• Hands-on approach to identifying and solving problems.
• Ability to work in a fast-paced environment, managing multiple priorities.
• Excellent written and verbal communication skills.

Desired Qualities

• 10+ years of experience in metal or ceramic manufacturing, including casting, powder processing, heat treatments, machining, and/or surface finishing.
• Experience with handling air-sensitive materials.
• Experience in scheduling, prioritizing, and delegating tasks to meet project milestones and production deadlines.
• Familiarity with lean manufacturing, 5S, or other process improvement methodologies.