Muon Space
Thermal Engineer II
About this role
Muon Space seeks a Thermal Engineer II to lead thermal design and analysis of spacecraft assemblies and subsystems, from initial calculations and modeling through TVAC testing. You'll work independently while collaborating with mechanical, electrical, and systems teams in a hybrid San Jose role.
What you'll do
- Build and execute thermal models using Thermal Desktop or equivalent tools for margin analysis, conduction/radiation calculations, and transient studies
- Own complete thermal analysis packages for assigned assemblies or subsystems
- Size radiators and heaters; establish component thermal limits and margins
- Support thermal verification testing and TVAC campaigns, including data analysis
- Coordinate thermal interfaces and requirements across mechanical, electrical, and systems engineering teams
- Mentor interns and junior engineers through model reviews and technical guidance
What they're looking for
- Thermal analysis software (Thermal Desktop or equivalent)
- Conduction and radiation fundamentals with hand calculation capability
- Spacecraft or aerospace thermal engineering design
- TVAC and thermal testing experience
- Python or Matlab scripting
- Mechanical CAD (SolidWorks preferred)
- Cross-functional team coordination
- Technical mentoring and leadership
Benefits
- Equity compensation
- Medical, dental, and vision insurance
- 401k retirement plan with employer matching
- Short and long-term disability and life insurance
- Three weeks paid vacation for new employees, 12 paid holidays, unlimited sick time
- Paid parental leave
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Muon Space
Muon Space builds satellites and infrared remote sensing instruments for Earth observation and geospatial data collection. The company is hiring systems engineers, flight software engineers, optical engineers, and software engineers to develop spacecraft, embedded satellite systems, and internal operational software.
- Website
- muonspace.com
Likely interview questions
- Walk us through your most complex thermal model and how you validated it against test data.
- Describe your experience with TVAC testing—what went wrong and how did you troubleshoot?