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# Senior/Principal Spacecraft Thermal Engineer (Remote) in , United States

- **Company:** Energy Jobline
- **Location:** Anaheim, CA, United States (Remote available)
- **Experience:** Expert
- **Salary:** $150,000.0 - $175,000.0
- **Contract:** Permanent contract
- **Skills:** Computer-Aided Design, Computational Fluid Dynamics, Subsystems
- **Published:** October 13, 2026
- **Apply:** https://www.energyjobline.com/job/senior-principal-spacecraft-thermal-engineer-remote-united-states-31934362

## About the Role

B.S. or M.S. in Mechanical or Aerospace Engineering.
7+ years of engineering experience.
Strong heat transfer and thermal analysis fundamentals.
Experience with spacecraft thermal design and troubleshooting.
Proficiency with CAD, FEA, and CFD tools; Thermal Desktop strongly .
Spacecraft mission and subsystem experience .
Strong communication, problem-solving, and teamwork skills.

Program Experience
Opportunity to support CubeSats, SmallSats, LEO/GEO satellites, satellite constellations, scientific spacecraft, and advanced thermal control systems - with analysis directly informing the design and development of flight hardware.

## Description

We are seeking an experienced Spacecraft Thermal Engineer to support thermal and mechanical design for spacecraft and spaceflight hardware. This role partners with engineering and manufacturing teams from early trade studies through detailed analysis, prototyping, and flight hardware.

Responsibilities
Perform spacecraft thermal and mechanical analysis and design.
Develop thermal models and evaluate thermal control systems, radiators, and heat rejection strategies.
Analyze component temperatures across mission and orbital environments.
Support prototype and flight hardware development.
Collaborate with multidisciplinary engineering and manufacturing teams.
Review technical documentation and provide design recommendations.
Mentor junior engineers and support complex space programs.