Lead commercial negotiations and cost strategy across assigned commodities, including pricing, cost models, competitive benchmarking, development agreements, capacity commitments, and long-term supply arrangements, identifying opportunities to improve cost without compromising quality, performance, reliability, or member experience. Partner closely with Electrical Engineering and cross-functional teams throughout the product development lifecycle to influence technology and supplier selection, component architecture, design-for-supply-chain decisions, and supplier readiness for development builds, product ramps, and mass production.