Senior Thermal Engineer

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.