Firefly Aerospace
Spacecraft Thermal Engineer III
Cedar Park, TX · Full-time · Posted Oct 22, 2026
- Experience
- Approximately 8–15+ years of spacecraft thermal analysis experience.
- Education
- B.S. in Aerospace Engineering, Mechanical Engineering, Physics, or related field.
- Visa sponsorship
- 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 required authorizations from the U.S. Department of State.
About the job
Leads spacecraft thermal analysis, modeling, testing, and validation across vehicle programs, guiding design decisions and supporting flight operations.
What you'll do
- Lead thermal analyses, trade studies, and modeling strategies from conceptual design through flight.
- Lead thermal testing and model validation using test, qualification, acceptance, and flight data.
- Provide technical leadership, mentor engineers, and represent Thermal Engineering in customer and program reviews.
What they ask for
- B.S. in Aerospace Engineering, Mechanical Engineering, Physics, or a related field.
- Expert knowledge of spacecraft heat transfer and thermal control systems.
- Extensive experience with Thermal Desktop and industry-standard thermal analysis software.
- Strong programming skills using Python, MATLAB, or similar languages.
Nice to have
- M.S. or Ph.D.
- Experience supporting NASA, DoD, or commercial spacecraft programs.
Tools
Thermal Desktop, Python, MATLAB
Model-written summary · the original posting is authoritative