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VastPosted Nov 5, 2026
Senior Power Systems Engineer
Long Beach, CAfull timeOn Sitesenior$112k–$196kH1B: no
Vast The Senior Power Systems Engineer at Vast owns the satellite power system end-to-end, including architecture, requirements, and verification. This role serves as the technical authority and drives power system design decisions across multiple disciplines.
Responsibilities
- Own the satellite power system end to end, including architectural trades, functional and technical interface definitions (hardware and software), hierarchical requirements specification, and verification and validation planning and execution
- Serve as the technical authority for the spacecraft power system. Own flight readiness assessment, disposition nonconformances and waivers against the power system, and hold final sign-off authority on power system configuration for launch
- Define ground and flight power modes and own the power budget. Build and defend first-principles energy balance models that size generation, storage, and margin across orbit geometries, eclipse profiles, and off-nominal modes to verify power positivity, and justify the model fidelity chosen for the decision being made
- Decompose system requirements into unit-level requirements at the circuit and functional level, covering parameters such as voltage and current ranges, regulation and ripple, efficiency, inrush and fault current limits, protection and isolation, margin, and derating. Define and execute the corresponding verification, including test setup, instrumentation, pass/fail criteria, and data review, and determine whether results actually close the requirement
- Drive power-relevant design decisions across mechanical, thermal, propulsion, GNC, and flight software. Capture system-level operating modes, constraints, and behaviors and drive their implementation on the power system; surface the questions others aren't asking, escalate unresolved interface conflicts, and secure convergence on the correct integrated design
Qualification
Rigorous validation mindset
Required
- Bachelor's degree in electrical engineering, or other engineering discipline
- 5+ years of professional or project experience in spacecraft electrical systems design.
- Experience designing spacecraft power systems from initial requirements
- Experience with high voltage power systems above 100 V
- Experience with lifecycle development as it relates to space systems, including requirement definition, identifying design solutions, integration, validation and verification, qualification, and operation
Preferred
- Experience with spacecraft power hardware, including lithium-ion battery systems, solar arrays and solar array drive assemblies, peak power tracking and regulation, and power distribution units
Benefits
- Dental
- Vision
- 401(k)
- PTO
- Equity/RSU
- Parental Leave
- Life Insurance
Company
Source: greenhouse
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