Strategic Sourcing Specialist | Mountain Pass, CA

Procurement, Logistics and Supply Chain
California, United States
September 18, 2026
$125,000 - $140,000 / year
Full-time
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Job Description

Company: MP Materials
Location: Mountain Pass, California, United States
Category: Procurement, Logistics and Supply Chain
Job Type: Full-time
Work Arrangement: On-site
Experience Level: Senior-Level
Salary: $125,000.00 – $140,000.00 annually

Job Summary
MP Materials is seeking a Strategic Sourcing Specialist to support procurement activities at its Mountain Pass operation. This role is responsible for purchasing and negotiating materials, equipment, and services used for mine maintenance, repair, and operations while supporting cost control, supplier performance, procurement compliance, and strategic sourcing initiatives.

Key Responsibilities

  • Purchase materials, equipment, and services for maintenance, repair, and operation of the mine.
  • Represent the company in negotiations with suppliers.
  • Create purchase orders and agreements and manage transactions from order entry through invoice payment.
  • Maintain supporting documentation for procurement transactions.
  • Use RFQs, bid analysis, and negotiations to maximize value from company expenditures.
  • Review approved requisitions, create purchase orders, and manage the complete purchase order lifecycle.
  • Maintain communication between suppliers and internal stakeholders and resolve issues affecting quality or delivery commitments.
  • Provide guidance to internal customers regarding purchasing policies, procurement processes, supplier sourcing, and SAP purchasing requirements.
  • Collaborate with procurement and legal teams to ensure contractual terms and conditions minimize risk.
  • Evaluate competitive bids and quotations.
  • Negotiate agreements that balance cost, quantity, reliability, and on-time delivery.
  • Monitor market conditions, new products, supply sources, technologies, and purchasing methods.
  • Perform market analysis and identify potential sources of supply using standardized sourcing criteria.
  • Support mine operations estimates by obtaining proposals for required materials and services.
  • Review purchase requisitions for completeness and appropriate approval.
  • Issue and track purchase commitments to support timely delivery and acceptable supplier performance.
  • Apply total lifecycle cost and other commercial analysis methods to support business initiatives.
  • Review suppliers for compliance with company quality and compliance requirements.

Qualifications

  • Bachelor’s degree in Supply Chain, Business, or a related field preferred.
  • Four years of relevant experience may be considered in lieu of a degree.
  • Minimum of five years of relevant experience required.
  • CPSM certification preferred.
  • Strong analytical and presentation skills.
  • Extensive experience with SAP, Microsoft Excel, PowerPoint, and other Microsoft Office products.
  • Strong personal integrity and customer service skills.
  • Ability to work independently with minimal supervision.
  • Ability to act confidently and execute quickly.
  • Demonstrated ability to support change and continuous improvement.
  • Strong cross-functional collaboration skills across Supply Chain and other business functions.
  • Ability to work effectively in ambiguous situations with confidence and determination.

Physical Requirements

  • Work is performed at an open pit mine or manufacturing and chemical plant environment at approximately 4,700 feet elevation.
  • May be exposed to extreme weather conditions, including heat, cold, and wind.
  • Work environments may include moving mechanical equipment, chemicals, electrical hazards, explosives, fumes, and airborne particles.
  • Personal Protective Equipment is required in mine, manufacturing, outdoor, and plant environments.
  • Must be able to pass a full-face respirator fit test and work in PPE Level C.
  • Must be able to lift up to 50 pounds.
  • Role may require standing, walking, reaching, climbing, balancing, stooping, kneeling, crouching, or crawling.

Why This Role Matters
This role supports the procurement and supply chain activities behind MP Materials’ Mountain Pass rare earth operation. The Strategic Sourcing Specialist helps ensure critical materials, equipment, and services are sourced competitively, delivered reliably, and managed in support of safe and efficient mine operations and the development of the U.S. rare earth supply chain.

Apply
👉 Apply online: https://workforcenow.adp.com/mascsr/default/mdf/recruitment/recruitment.html?cid=2025028d-7acd-4c20-b3da-c49a0d760dac&ccId=19000101_000001&selectedMenuKey=CareerCenter&jobId=553335

⚠️ Disclaimer
This job is shared for informational purposes. WeMineUp is not affiliated with the hiring company. Please apply through the official company process.

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