Power Avionics Engineer

The role

The Power Electronics Engineer will design, develop, and integrate electrical systems for high power solar arrays and compute payloads. You will work with software, mechanical, solar, and propulsion engineers to develop solutions for space applications.

What you will do

• Own the design, development, and validation of spacecraft power electronics systems from concept through flight
• Architect and implement power distribution systems
• Design and analyze DC-DC converters, battery management systems (BMS), and power control electronics
• Develop and execute test plans for power systems
• Perform system-level analysis of power budgets, efficiency, thermal performance, and fault conditions
• Implement protection and fault management strategies
• Partner with structures, thermal, software, and payload teams
• Support board bring-up, integration, and debugging of power electronics
• Investigate anomalies and drive root cause analysis
• Support vehicle integration, pre-flight testing, and on-orbit performance analysis

Required qualifications

• Bachelor’s degree in Electrical Engineering or a related field
• 3+ years of experience designing or testing power electronics or avionics systems
• Strong understanding of power electronics fundamentals (DC-DC conversion, control systems, power distribution)
• Experience with schematic capture, PCB design, and board bring-up
• Familiarity with lab equipment (oscilloscopes, power supplies, electronic loads) and debugging techniques
• Experience working in high-reliability or hardware-focused environments

Nice to have

• Experience designing power systems for spacecraft, aerospace, or other harsh environments
• Familiarity with battery systems, solar arrays, and energy storage technologies
• Experience with radiation-tolerant design and component selection
• Knowledge of thermal management and its interaction with power electronics
• Experience with hardware-in-the-loop (HIL) testing and system integration
• Familiarity with FPGA or embedded systems as they relate to power control and monitoring
• Experience with reliability analysis (FMEA/FMECA, derating, fault tolerance)
• Ability to work in fast-paced, high-ownership environments with aggressive timelines

Benefits

• Equity in Cowboy Space Corp.
• Medical, dental, and vision insurance for employees and eligible dependents
• 401(k) retirement savings plan
• Paid time off
• 10 paid holidays per calendar year
• Paid parental leave
• Relocation assistance if applicable
• Daily lunch in the office
• Fully stocked kitchen with beverages and snacks

Before you apply

• Applicants must be a U.S. citizen, lawful permanent resident of the U.S., protected individual as defined by 8 U.S.C. 1324b(a)(3), or eligible to obtain the required authorizations from the U.S. Depar

About the company

Cowboy Space Corporation is building the infrastructure for abundant, resilient space-based solar energy. The company is based in San Carlos, CA.