Planner, Manufacturing

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: The Manufacturing Planner is responsible for developing and maintaining production plans for a designated group of manufacturing centers within a large-scale manufacturing facility. This role ensures production plans are balanced with customer demand, production capacity, material availability, labor resources, inventory levels, and maintenance requirements. The Manufacturing Planner works closely with Operations, Maintenance, Supply Chain, Procurement, Logistics, and Customer Service teams to develop executable production schedules that support service, cost, inventory, and operational performance goals. The position monitors production execution, identifies constraints, manages schedule adjustments, and drives alignment across stakeholders to ensure safe and efficient plant operations. Position Responsibilities: Production Planning & Scheduling Develop and maintain detailed production plans and schedules for assigned manufacturing centers Balance customer demand, inventory targets, equipment capacity, labor availability, and operational constraints when creating production schedules Sequence production to maximize throughput, minimize downtime, and improve overall manufacturing efficiency Monitor schedule adherence and adjust plans to address changing business requirements and operational conditions Ensure production schedules align with facility and business objectives Materials Planning Coordinate raw material requirements to support planned production Monitor material consumption against plan and identify risks to production continuity Partner with Procurement and Supply Chain teams to address material shortages and supply constraints Support inventory optimization initiatives for raw materials and intermediates Finished Goods Planning Ensure production plans support customer delivery requirements and inventory targets. Coordinate with Logistics and Customer Service teams regarding production priorities and shipment requirements. Monitor finished goods inventories and recommend production adjustments as needed. Assist in managing service risks related to demand fluctuations or operational disruptions. Work-in-Process (WIP) Management Monitor WIP inventories within assigned manufacturing centers Identify bottlenecks, inventory imbalances, and process constraints affecting production flow Coordinate with operations teams to maintain optimal inventory levels throughout the manufacturing process Support initiatives to improve throughput and reduce cycle times Labor & Resource Coordination Incorporate labor availability and staffing requirements into production schedules Coordinate with manufacturing leaders to align production requirements with available resources Support capacity planning efforts by identifying resource constraints and recommending solutions Operational Monitoring & Execution Review production performance daily and adjust schedules based on operating conditions Analyze production issu…

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