Senior Commodity Manager

Company Overview Mainspring Energy is revolutionizing power generation with the world’s most flexible and adaptable local power generation technology, the Mainspring Linear Generator. Commercial, industrial, and utility leaders are choosing Mainspring over traditional options like engines, turbines, and fuel cells to quickly and reliably deliver local power for EV charging, commercial facilities, data centers, and grid-scale operations. The Mainspring Linear Generator is fuel flexible, ramps up and down to meet demand, and utilizes a flameless reaction with near-zero NOx emissions. Backed by top-tier investors including Khosla Ventures, Bill Gates, American Electric Power, Lightrock, and General Catalyst Mainspring designs, manufactures and delivers its products to customers across the U.S. today, and we’re quickly scaling for international expansion. Inspired by our vision of the affordable, reliable, net-zero carbon grid, Mainspring is rapidly expanding within the $816B global electricity equipment market, and we’re hiring the best talent to meet growing customer demand around the globe. We welcome a broad range of backgrounds, experiences, and talents to bring fresh perspectives and ongoing innovation to our customers. We are looking to build relationships with people who share our values: Pragmatic Optimism Building a new category of world-class power generation requires the optimism of ambition and creativity, balanced with practicality to solve problems efficiently. The challenges that arise are opportunities for growth. Excellence without Ego We bring expertise and commitment to creating the best customer experience, from sales to deployment and service, just as we apply deep technical rigor to building and delivering world-class products. We strive for excellence and behave as leaders with the humility to acknowledge our challenges, both collectively and as individual contributors. Proactive Collaboration The integration and cross-disciplinary nature of Mainspring’s business requires intentionally seeking out others who bring different skills, perspectives, and priorities. Our culture of inclusion and respect extends beyond our team to interactions with our partners and customers. More information can be found at Job Overview Mainspring Energy is rapidly scaling production of its breakthrough Linear Generator technology, necessitating a highly experienced and strategic Senior Staff Commodity Manager to lead global sourcing for graphite materials and mechanical components - with a strong emphasis on isostatic impregnated graphite - and select critical mechanical components. This role is essential for developing and executing comprehensive sourcing strategies, managing supplier relationships, and ensuring the procurement of materials that meet stringent technical, quality, and commercial requirements. The ideal candidate will be accountable for the entire lifecycle of assigned commodities, including supplier identification, technical qualification, contracting, risk mitigation, and performance monitoring. Cross-functional collaboration with engineering, materials science, operations, and quality is essential to meet business objectives and drive continuous improvement. Responsibilities Own and execute global commodity strategies for complex mechanical components, including CNC machining, castings, forgings, sheet metal, weldments, heat‑treated parts, thermal spray, and laser cladding Lead the graphite materials category, defining commercial strategy for high‑temperature sealing and high‑performance applications in partnership with Engineering Drive cost reduction through should‑cost modeling, DFM collaboration, and scalable supplier strategies Mitigate supply and technical risk through alternate sourcing, performance monitoring, and data‑driven cost models Establish sourcing standards, best practices, and commercial frameworks that scale across mechanical categories and influence broader Supply Chain strategy Build long‑term supplier partnerships that ensure quality, cost, delivery, and scalability beyond transactional sourcing Expand and diversify the global supply base to support production scaling and the transition to high‑volume manufacturing, while reducing supply risk and strengthening supply chain resilience Lead sourcing and supplier development activities in China, managing regional risk and on‑site engagement Set and enforce supplier standards for quality, delivery, and compliance Drive continuous improvement through joint process reviews, performance metrics and corrective actions Lead negotiation and execution of MSAs and LTAs, including pricing, liability, capacity commitments, and service‑level agreements Required Qualifications 15+ years of experience in strategic sourcing, commodity management, or supply chain leadership Strong background sourcing custom mechanical components and managing complex BOMs Engineering degree (Mechanical, Materials, Chemical preferred) or equivalent technical background Ability to rapidly absorb and operate in highly technical domains (e.g., advanced materials) ERP and procurement analytics proficiency (e.g., SAP, Oracle, NetSuite) Bay Area presence required Desired qualifications, but not required Experience sourcing graphite materials for high‑temperature or unlubricated applications Mandarin proficiency Advanced degree or CPSM/Six Sigma certification $150,000 - $180,000 a year This position is remote . The salary will be adjusted to reflect local market conditions based on employee location as well as the experience of the employee. Along with the base salary, Mainspring offers pre‑IPO stock options + benefits. Does your experience not meet all of our posted requirements? Studies have shown that some people are less likely to apply to positions unless they meet every listed requirement. At Mainspring, we are committed to building a diverse, inclusive, flexible, and collaborative environment, so if you want to help us transition the world to clean and affordable electricity, and don’t meet all posted requirements for a particular role, we’d still love to hear from you. Mainspring can sometimes be flexible enough to shift responsibilities for the right person, or otherwise identify open or upcoming roles that may better fit your professional background. In more traditional words, Mainspring Energy, Inc is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, or protected veteran status and will not be discriminated against on the basis of disability. This compensation and benefits information is based on Mainspring Energy's estimate as of the date of publication and may be modified in the future. We generally do not negotiate on salary once we have made an offer. The level of pay within the range will depend on a variety of job‑related factors that may include location, relevant prior experience and/or education, or particular skills and expertise. New hires joining the company tend to be paid within the starting base pay range noted above, with opportunities to increase pay over time based on development of additional skills, competencies, and company‑specific knowledge. #J-18808-Ljbffr