Senior Thermal Engineer
Apply on Muon Space’s site →About the role Muon Space is hiring a Senior Thermal Engineer to own instrument-level thermal engineering across missions (SBEM, Quickbeam, Hydrosat) — models, hardware, and verification end-to-end — while contributing to spacecraft-level thermal balance. You'll be a recognized technical voice who works across disciplines to land elegant, well-balanced designs. This position is hybrid and requires working on-site in our San Jose, CA office three days per week. Responsibilities Own instrument thermal models and drive instrument NRE and per-mission-block design improvements. Own the thermal V&V test plan, including model correlation, for instruments. Own thermal hardware ICDs (heat straps, radiators) and performance requirements. Contribute to full-spacecraft thermal balance and system thermal model integration. Support system-level testing and define thermal limits and margins to other subsystems. Mentor junior thermal engineers and serve as the technical go-to for instrument thermal. Required Qualifications 8+ years (BS+8 / MS+6) in spacecraft or aerospace thermal engineering. Expert in thermal simulation and full-spacecraft thermal balance. Experience designing, executing, and correlating TVAC and unit-level thermal tests. Fluency across thermal-mechanical interfaces (ICDs, margins, requirements flow-down). B.S. or higher in Mechanical, Aerospace, Physics, or a related field. Nice-to-have Scripting in Python or Matlab. Systems-engineering experience. Experience with IR-imaging systems or spacecraft payloads.