Thermal Engineer
Luxembourg
EU Engineering – Thermo-Mechanical /
Full-time (Regular) /
On-site
Join Our Mission to the Moon
At ispace EU, we are proud to have been the first European entity legally authorized to commercialize space resources; a milestone that marks a new era in lunar exploration. Based in Luxembourg, we are designing the next generation of lunar rovers and building a team of bold thinkers ready to make history. If you're passionate about innovation and want your work to have real impact, we want to hear from you.
TITLE: Thermal Engineer
LOCATION: Luxembourg
ABOUT THE ROLE
As a Thermal Engineer, you will play a pivotal role in ensuring our spacecraft systems can thrive in the harsh conditions of space. You will design, analyze, and verify thermal control solutions that keep critical hardware within safe operating limits during every mission phase. Based in Luxembourg, this role works closely with cross-disciplinary teams in mechanical, electrical, and systems engineering, directly contributing to ispace’s vision of enabling sustainable lunar exploration. Your expertise will help transform innovative rover designs into reliable spaceflight hardware that can survive and succeed on the Moon.
KEY RESPONSABILITIES
- Develop and maintain thermal models of spacecraft systems using industry-standard tools (e.g., ESATAN, Thermal Desktop).
- Design and validate thermal control systems, including radiators, heaters, MLI, and coatings, to ensure mission success.
- Perform thermal analyses under varying orbital, surface and mission scenarios, and correlate results with test data.
- Lead thermal verification activities, including component- and system-level thermal vacuum testing.
- Collaborate with mechanical, electrical, and systems engineering teams to integrate thermal requirements into spacecraft design.
- Document thermal design, analysis results, and test outcomes in high-quality technical reports and specifications.
- Identify and mitigate thermal risks throughout the design and test lifecycle.
- Contribute to continuous improvement by feeding lessons learned into future missions.
KEY REQUIREMENTS
- Bachelor’s or Master’s degree in Aerospace Engineering, Mechanical Engineering, Physics, or a related field.
- 3–5 years of experience in spacecraft thermal analysis and design of thermal control systems.
- Proficiency with thermal analysis tools (e.g., ESATAN, Thermal Desktop) and familiarity with 0D/1D thermal network modeling. Thermal Desktop is preferred.
- Hands-on experience with thermal testing in space-relevant environments (e.g., TVAC).
- Strong analytical and problem-solving skills, with the ability to work both independently and in a multidisciplinary team.
- Excellent written and verbal communication skills in English.
- Demonstrated adaptability and initiative in dynamic, fast-paced engineering environments.
- #LI-FG1
Why Join ispace EUROPE?
At ispace EU, we’re not just building lunar rovers — we’re shaping the future of space exploration from our base in Luxembourg. As part of a global team spanning Japan, the US, and Europe, we’re on a mission to create a sustainable lunar economy and expand humanity’s reach beyond Earth.
Join a diverse, fast-moving team where engineers, creatives, and business minds work side by side to turn bold ideas into reality. If you're ready to make history — and have fun doing it — we’d love to hear from you.
Let’s go to the Moon together.
Learn more about our recent activities here: https://ispace-inc.com/news-en.
We welcome candidates with diverse experience levels and evaluate the best fit on an individual basis. Your final job level and salary will be determined based on your skills, experience, and the impact you can bring to the role.
