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Strategic Sourcing, Purchasing, and Commodity Management (All Levels)

Torrance, California, United States
Full Time On-site

Summary

Job Description

As a member of the strategic sourcing team, you will be integral in working with the cross-functional groups defining, designing, building, and testing Castelion vehicle and missile subsystems. We are looking for people of all levels; from newly established supply chain professionals to those who have amassed multiple years worth of experience. You win in this role by creating a supplier ecosystem that scales seamlessly from prototype to production. Success is defined by the perfect balance of technical quality, aggressive timelines, and the operational agility needed to help Castelion scale. We seek intelligent, collaborative, and driven individuals who are passionate about problem-solving and eager to lay the groundwork for a team to contribute to an extraordinary mission. If you thrive in challenging environments and are excited by the prospect of making an immediate tangible impact, we want to hear from you.

Responsibilities

  • Support the development and execution of sourcing strategies by analyzing suppliers to identify cost-saving opportunities and ensure reliable supply for upcoming product launches.
  • Assist in evaluating and selecting suppliers based on quality, reliability, and cost-effectiveness to maintain a robust supply base capable of Castelion's rapid development and production.
  • Track and report on performance metrics and sourcing trends to support alignment with organizational goals.
  • Collaborate with suppliers to improve quality, reduce costs, and enhance service levels while addressing risks and compliance requirements.
  • Participate in contract negotiations, including pricing, technical requirements, and compliance terms.
  • Facilitate design for manufacturability reviews with input from supplier quality and engineering teams.
  • Contribute to the development and execution of supply plans to mitigate risks and ensure timely delivery of quality materials.
  • Assist in addressing sole/single source risks to maintain supply chain continuity.
  • Lead and collaborate with engineering and quality teams to address and resolve issues with rejected materials, aiming to prevent future quality problems.
  • Provide regular updates to key stakeholders on critical supply issues and maintain strong relationships with suppliers.
  • Ensure adherence to company policies, procedures, and relevant government regulations.

Basic Qualifications

  • Educational Background: Bachelor's degree or equivalent
  • Technical Proficiency: 2+ years of experience working in a related field, program, or project

Preferred Skills and Experience

  • System Experience: Experience with MRP or ERP systems, and with managing bill of materials, work orders, and purchase orders, and the total ownership of the data within them.
  • Technical Skills: This role requires broad mechanical domain knowledge, including machined parts, composites, chemicals, avionics and their associated manufacturers and manufacturing methods.
  • Problem-Solving: Innovative problem-solving approach using critical thinking, including utilization of learnings from an American Production and Inventory Control Society (APICS) certification, Six Sigma certification, or similar certifications and data analysis using Excel, SQL, or an advanced analytics software.
  • Clearance: Active US Government security clearance or the ability to get one.

Leadership Qualities

Bias to Action and Creative Problem Solving. Desire and experience questioning assumptions in ways that lead to break through ideas that are ultimately implemented. Successfully bring in applicable processes/concepts/materials from other industries to achieve efficiency gains. Ability to personally resolve minor issues in development without requiring significant support.

High Commitment, High Initiative. A successful candidate will have a genuine passion for Castelion's mission and consistently look for ways to contribute to the company's technical goals and prevent hardware blockers. Ability to work in a fast paced, autonomously driven, and demanding atmosphere. Strong sense of accountability and integrity.

Clear Communicator. Proactively communicates blockers. Trusted in previous roles to be voice of company with regulators, suppliers, gate keepers and customers. Capable of tactfully managing relationships with stakeholders to achieve company-desired outcomes without compromising relationships. Emails, IMs and verbal interactions are logical, drive clarity, and detailed enough to eliminate ambiguity.

About Castelion

Castelion

Castelion is one of the fastest-rising defense technology companies focused on building affordable, rapidly deployable hypersonic strike systems for the U.S. military. Founded by former SpaceX leaders, the company is working to modernize how advanced weapons are developed and manufactured—using rapid iteration, vertical integration, and scalable production to deliver next-generation deterrence capabilities faster than traditional defense programs. Castelion’s mission centers on restoring America’s ability to field advanced military technology at speed and scale.

For job seekers, Castelion offers the opportunity to work directly on some of the most advanced technologies in national defense, including propulsion systems, avionics, flight software, guidance and navigation, missile systems, and advanced manufacturing. The company hires across aerospace engineering, embedded software, manufacturing, test engineering, avionics, cybersecurity, and operations—making it especially attractive to engineers, builders, veterans, and mission-driven professionals who want hands-on ownership of real hardware.

Unlike traditional defense contractors, Castelion operates with a startup-style engineering culture modeled after rapid aerospace development environments. Employees work closely with flight hardware, testing, and production systems in a fast-paced setting where speed, accountability, and execution are prioritized. The company openly emphasizes a builder mentality—giving team members the chance to own major projects and contribute directly to systems with national security impact.

As the U.S. military increases investment in hypersonic weapons, missile modernization, and scalable deterrence capabilities, Castelion continues to grow rapidly through major government contracts and manufacturing expansion. For professionals seeking a high-growth aerospace and defense company where they can help shape the future of national security technology, Castelion is quickly becoming one of the most exciting employers in the defense innovation ecosystem.

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