Senior Thermal Engineer

About the role

I’m partnering with a rapidly growing space organization developing and operating a cutting‑edge space‑based communications constellation, and we’re looking for an experienced Senior Thermal Engineer to join the team. This is a particularly interesting opportunity for a thermal engineer who wants to go beyond traditional design and analysis and work directly with spacecraft operating on orbit. You’ll play a key role in ensuring the thermal health and performance of spacecraft throughout their operational life, working closely with Flight Operations, Software, Systems and Thermal Engineering teams.

Responsibilities

• Lead thermal support for on‑orbit spacecraft operations
• Monitor and analyse spacecraft thermal telemetry
• Define thermal FDIR limits and automated responses
• Troubleshoot and resolve on‑orbit thermal anomalies
• Support spacecraft CONOPS across different mission phases
• Perform thermal modelling and analysis using tools such as Thermal Desktop
• Support spacecraft and subsystem‑level thermal testing
• Improve thermal monitoring, operational processes and flight strategies
• Work directly across Thermal, Flight Operations and Software teams

Requirements

• 5+ years of spacecraft thermal engineering experience
• Strong thermal modelling and analysis background
• Experience with Thermal Desktop or similar tools
• Understanding of spacecraft thermal hardware, testing and operations
• Ability to independently investigate and solve complex thermal problems
• Exposure to Python, MATLAB or similar would be beneficial
• Experience supporting flight hardware or on‑orbit spacecraft is highly desirable