Mainspring Energy - Senior Staff Commodity Manager, Electrical Strategic Design Sourcing
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Requirements
• Bachelor's degree or higher in Electrical Engineering, Supply Chain, or equivalent technical discipline. • 18+ years of combined experience across electrical engineering, operations, and supply chain roles, with hands-on involvement in sourcing, BOM optimization, and supplier management for electrical and electronics commodities. Experience supporting R&D and new product introduction required. • Deep technical knowledge of power electronics, industrial electrical components, PCBAs (SMT/through-hole/mixed), connectors, cable assemblies, and battery/energy storage systems. Hands-on circuit design, power supply design, or PCBA layout experience is a strong plus. • Experience evaluating and onboarding contract manufacturers for electromechanical assemblies. • Experience managing global manufacturing partners, negotiating contracts, and optimizing bills of materials for cost, quality, lead time, and regulatory compliance. • Comfort operating in fast-paced R&D environments with shifting requirements and close engineering collaboration. • Ability to navigate compliance-driven sourcing environments, including familiarity with regulatory frameworks such as FEOC, IRA/ITC, USMCA, or UL/IEC certification. • Strong negotiation, supplier qualification, and analytical skills. • Willingness to travel up to 40% (domestic US and Mexico; occasional international). • Experience in energy storage, battery, or distributed power generation. • Working knowledge of IRA battery sourcing requirements and FEOC country-of-origin tracing. • Familiarity with UL 9540, UL 1973, UL 508a, IEC 62619, or related safety certification frameworks. • Prior experience in a hardware startup or high-growth manufacturing environment. • Experience with US and Mexico manufacturing footprints (USMCA). • $165,000 - $200,000 a year • This position is remote. The salary range provided is for the San Francisco Bay Area and 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.
Responsibilities
• Lead rapid-turnaround sourcing for R&D electrical builds: prototype PCBAs, connectors, cables, sensors, power distribution components, and electromechanical box assemblies. • Identify, evaluate, and onboard new contract manufacturers for electrical assemblies with US and Mexico manufacturing presence (USMCA-compliant). • Own the sourcing strategy for Mainspring’s AC-to-DC product transition, including BOM-level lead time analysis, risk buy decisions, and production readiness accountability. • Source and evaluate power conversion equipment (inverters, transformers, skidded systems) across multiple suppliers to reduce single-source risk. • Develop and execute a multi-path battery and BMS sourcing strategy compliant with FEOC and IRA (Inflation Reduction Act) requirements, evaluating multiple chemistries and form factors from non-restricted geographies. • Qualify non-FEOC BMS design partners and battery cell/pack suppliers, managing the full cycle from NDA through spec distribution, quote evaluation, and development contract negotiation. • Collaborate with Engineering on DFM reviews, connector and material strategy, corrosion protection solutions, and cable redesign opportunities. • Drive supplier selection committee processes, presenting sourcing recommendations to leadership with clear trade-offs on cost, risk, and schedule. • Negotiate pricing and contracts from R&D quick-turn purchases through long-term volume agreements. • Monitor FEOC, IRA/ITC, USMCA, and tariff developments to proactively adjust sourcing strategies.
Benefits
• We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.
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