Principal Power Electronics - Electrical Power System Architect (Sunnyvale)

Principal Power Electronics - Electrical Power System Architect San Francisco Bay Area

We are supporting an innovative space company seeking a Senior Power Electronics / EPS Architect to own the design and maturation of a high-voltage spacecraft electrical power system, approximately 400V.

This is a technical leadership role responsible for end-to-end EPS architecture, from solar array interfaces through regulation, storage, distribution, protection, and system integration.

Key Responsibilities:

Own the detailed architecture of a high-voltage spacecraft power system. Define solar array regulation including S3R or MPPT, battery charge and discharge, bus regulation, and distribution strategies. Lead DC-DC converter topology selection and design, including protection schemes and derating strategy. Address high-voltage space environment risks including plasma interaction, insulation, grounding, and compliance with relevant standards. Perform system-level fault analysis and FMEA, define safe-mode behaviors, and support integration with control systems and high-power payloads. Define and execute verification, integration, and qualification strategy through PDR, CDR, and flight readiness.

Required Experience:

10+ years in power electronics and spacecraft EPS design. Strong background in high-voltage DC systems, power conversion, and fault-tolerant distribution Experience delivering hardware from concept through test and qualification. Experience designing for radiation environments and high-reliability aerospace systems.

This is a high-impact opportunity to architect a mission-critical spacecraft power system in a fast-paced, technically rigorous environment.