Manager, Inventory & Cost Accounting

Job Description

Job Description

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 Manager, Inventory and Cost Accounting, you will lead the development, implementation, and oversight of the Company’s inventory and cost accounting processes. You will ensure that inventory valuation, costing methodologies, and financial controls align with the Company’s policies and U.S. GAAP. A critical focus of the role is leveraging SAP to automate and enhance usefulness and timeliness of reporting, drive inventory accuracy, and ensure compliance. You will oversee cost accountant(s) and partner cross-functionally to support operational growth and strategic initiatives.

Position Responsibilities :

• Oversee the full inventory valuation cycle including standard costing, variance analysis, and month-end close processes.
• Establish and maintain procedures to monitor and evaluate inventory obsolescence and excess or slow-moving inventory, including preparation of reserves.
• Perform and document lower of cost or net realizable value analyses on a quarterly basis to ensure inventory is accurately valued in accordance with US GAAP.
• Identify improvement of internal processes in a controlled, SOX-compliant environment.
• Ensure proper internal controls and financial procedures related to inventory and cost accounting.
• Review daily / weekly production reports and ensure timely and accurate capture of costs in SAP (FI / CO, MM, PP modules).
• Analyze and monitor purchase price variance (PPV), labor efficiency, and usage variances; investigate significant deviations and recommend corrective actions.
• Review and update cost standards for materials, labor, and overhead regularly; partner with manufacturing and supply chain on cost inputs.
• Review the cost of goods sold and production reports.
• Review inventory accounts and roll forward of inventory activities.
• Evaluate the monthly activity rates and standard costing calculations to verify the accuracy of month-end close reporting.
• Review and approve monthly journal entries from the cost accountant(s).
• Complete monthly analysis on the under / over absorption by department as it relates to the set standards.
• Complete quarterly review and analysis of actual costs and activity rates to determine updated standard cost rates that are needed.
• Implement new costing functionality within SAP for expanding manufacturing departments within the company.
• Drive cross-functional initiatives with IT, operations, and engineering to improve data integrity, reporting, and costing analytics.
• Assist in the setup and implementation of additional departments and companies, as it relates to production, new products, and customers, within SAP.
• Support external and internal audits with required documentation and analysis.
• Mentor and lead a small team of cost accountant(s).

Basic Qualifications :

Desired Qualities :

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.