Principal Power Electronics Engineer – Space & HPC

Cowboy Space Corporation; San Carlos (CA); On-site; USD 155,000 - 245,000; Full time

Benefits offered by this job

Equity in Cowboy Space Corp.

Medical, dental, vision insurance

401(k) retirement savings

Paid time off

10 holidays per year

Parental leave

Relocation assistance

Daily lunch and snacks

Job summary

Cowboy Space Corp. is seeking a Principal Power Engineer to lead design of high‑voltage, high‑power DC/DC systems for terrestrial and orbital data center infrastructure. You will shape architecture, drive power delivery innovation, and mentor engineers in a fast‑moving space/compute agenda.

The role covers solar and alternative power inputs, transformer/inductor design, and robust power networks for GPU clusters in ground and orbital environments. Excellent scope for leadership and impact.

Qualifications

• Master's or Ph.D. in Power Electronics, Electrical Engineering, or related field.
• 10+ years of professional experience in power electronics design and development.
• Demonstrated expertise in DC/DC converter design, topology selection, and control strategies.
• Strong background in magnetic component design including transformer and inductor design, material selection, and optimization.
• Proficiency in PCB design and layout for power applications, including high‑speed signal routing and thermal management.
• Deep expertise in power integrity analysis, including PDN design, component optimization, and control theory.
• Hands‑on experience with power supply design for GPU or high‑performance computing systems.
• Proficiency with circuit simulation tools (SPICE, PSpice, LTspice) and thermal simulation software.
• Experience with high‑voltage (>48VDC) and high‑power (>1kW) converter design.
• Proven track record of taking power electronics designs from concept through volume production.
• Strong problem‑solving skills, attention to detail, and ability to work in fast‑paced environments.

Responsibilities

• Design and optimize high‑voltage, high‑power DC/DC converter topologies for solar and alternative power sources to GPU power distribution systems in terrestrial and space environments (multi‑kW to MW scale)
• Develop end‑to‑end power conversion architecture from solar/alternative power input through multi‑stage distribution to GPU compute nodes, with consideration for both ground and orbital operational requirements
• Lead design of custom magnetic components including transformer and inductor designs for optimal efficiency and thermal performance
• Conduct power integrity analysis and design robust power delivery networks for high‑current GPU power rails
• Own PCB design and layout for power conversion stages, ensuring signal integrity, thermal management, and manufacturability
• Specify and integrate GPU power supply modules, working closely with GPU supplier on power delivery requirements and validation
• Perform circuit simulation, thermal analysis, and validate prototypes through bench testing and field deployment
• Collaborate with mechanical, thermal, and systems engineering teams to optimize overall power system performance
• Establish design standards, best practices, and technical roadmap for power electronics platforms
• Mentor junior engineers and contribute to continuous technical advancement of the power systems team

Skills

Power electronics

DC/DC design

PCB layout

Thermal management

Power integrity

GPU power

Team leadership

Education

Master's degree

PhD preferred

Tools

SPICE

LTspice

PSpice

Job description

Cowboy Space Corp. is seeking a Principal Power Engineer to lead design of high‑voltage, high‑power DC/DC systems for terrestrial and orbital data center infrastructure. You will shape architecture, drive power delivery innovation, and mentor engineers in a fast‑moving space/compute agenda.

The role covers solar and alternative power inputs, transformer/inductor design, and robust power networks for GPU clusters in ground and orbital environments. Excellent scope for leadership and impact.