About Mainspring
Mainspring Energy manufactures and delivers fuel-flexible, low-emissions local power solutions that rapidly add new capacity and deliver reliable, affordable, and sustainable electric power. The company began commercial shipments of its Mainspring Linear Generators in 2020 and today has hundreds of megawatts in advanced development and field operations for leading Fortune 500 companies, data centers, and utilities. Mainspring also partners with global energy leaders including AEP, NextEra Energy Resources, Schneider Electric, and more.
The core values that ground our work, guide our decisions, and connect us together:
- Pragmatic Optimism
- Excellence without Ego
- Proactive Collaboration
Job Overview
We are seeking a Senior Staff Commodity Manager, Electrical to own the sourcing, cost, and supply continuity of Mainspring's electrical and power electronics commodities as we scale Linear Generator production. This senior individual contributor will set commodity strategy, develop suppliers and contract manufacturers, lead negotiations, and partner closely with Engineering, NPI, Quality, and Operations. The role demands technical depth, commercial strength, and sound judgment balancing cost, risk, and schedule in a fast-moving, compliance-driven environment.
Key Responsibilities
Own commodity strategy for the assigned electrical portfolio (power conversion, PCBAs, connectors, cables and harnesses, sensors, power distribution, chassis, electromechanical assemblies): make/buy, preferred suppliers, risk tiering, and best total cost across price, lead time, quality, and working capital
Identify, qualify, and onboard USMCA-compliant US and Mexico contract manufacturers, from RFQ through ramp
Support sourcing strategy for the AC-to-DC product transition, including lead time analysis, risk buys, and production readiness
Lead DFM, DFX, and should-cost work with Engineering from early NPI
Plan and deliver cost-down programs tied to the product cost roadmap, reporting progress with each supplier on a regular cadence
Lead single point of failure mitigation, supplier risk assessments, and business continuity planning
Negotiate pricing and contracts from R&D quick-turn through long-term volume agreements
Partner with SCM Program Managers and tactical purchasing for clean R&D-to-production transitions
Run supplier business reviews and improve quality, delivery, capacity, and cost with Quality and SQE
Drive supplier selection and present sourcing recommendations to leadership with clear cost, risk, and schedule trade-offs
Monitor component pricing, market trends, and regulatory and tariff changes, adjusting sourcing plans proactively
Mentor junior team members and contribute to team standard work
Qualifications
Bachelor's degree or higher in Electrical Engineering, Supply Chain, or equivalent
Minimum of 15+ years across electrical engineering, operations, and supply chain, with hands-on sourcing and supplier management for electronics commodities; R&D and NPI experience required
Deep knowledge of power electronics, industrial electrical components, PCBAs (SMT, through-hole, mixed), connectors, and cable assemblies
Proven supplier evaluation, contract negotiation, and global supply base management
Experience onboarding contract manufacturers for electromechanical assemblies
Demonstrated cost reduction results: DFM, should-cost, multi-source qualification, BOM optimization
Comfort in fast-paced R&D and ramp environments with shifting requirements
Familiarity with FEOC, IRA/ITC, USMCA, and UL/IEC compliance
Strong analytical skills; proficient with Excel and MRP/ERP systems
Travel up to 35% (US and Mexico; occasional international)
Nice to Have
Energy storage, battery, or distributed power generation experience
Familiarity with UL 9540, UL 1973, UL 508a, or IEC 62619
Hardware startup or high-growth manufacturing experience
Experience with US and Mexico manufacturing footprints
Working knowledge of IRA battery sourcing requirements and FEOC country-of-origin tracing
Hands-on circuit design, power supply design, or PCBA layout experience
Lean or Six Sigma certification
