Thermal Analysis Engineer (m/f/d)

Isar Aerospace
Ottobrunn, Germany
Added: March 27, 2024
Your Mission

As part of the Launch Vehicle Loads and Analysis team, you will be working on the thermal systems of the Spectrum launch vehicle. Covering system design; sources and model definition to conducting calculations and reporting. Your input and knowledge will be highly appreciated and directly drive flight hardware design iterations.

More specifically, you will:

  • Design and analyze thermal systems (e.g. MLI, ventilation systems, heaters, …)
  • Set up and own thermal models of the launcher, including:
    • convection models for closed volumes and propellants
    • radiative and conductive models for complex geometries
  • Investigate critical scenarios during ground and flight operations
  • Perform thermal coupled load analysis for the launch vehicle and payload as part of mission analysis
  • Determine operating environments for components (e.g. Avionics) and vehicle structures
  • Define thermal instrumentation for system testing and flight

Who You Are And What You Have

  • B.Sc./M.Sc. in the field of Engineering, Aerospace, Mechanics or comparable
  • At least 5 years of experience working on thermal systems
  • Sound knowledge in thermal systems design and heat transfer mechanisms
  • Experience with fluid dynamics and conjugate heat transfer
  • Experience with thermal instrumentation and testing
  • Experience with Matlab or Python and thermal software such as Ansys Thermal
  • Ability to effectively collaborate in multi-disciplinary and cross-functional teams
  • Highly organized and proactive with high attention to detail
  • Fluent in English

Nice to Have:

  • Aerospace experience, preferably with launch vehicle development
  • Experience with cryogenic systems
  • Experience with thermal system modeling software such as Thermal Desktop or ESATAN


  • 30 days holiday
  • Subsidised lunch
  • Individual learning budget
  • Virtual company shares
  • Qualitrain Sport Clubs membership
  • Customized company pension plan
  • Public transport ticket

Who We Are

We are Isar Aerospace and we are at the forefront of New Space building a modern space business to enable faster, better and cheaper access to space.

Our mission is to help democratise space and use it for good in order to improve life on Earth now and for the future generations.

We are a fast-growing company aiming to provide sustainable and environmentally friendly launch solutions for small and medium-sized satellites and constellations into Low Earth Orbit. The company is privately funded by world-leading technology investors with strong commitment and support and our team is made of driven and talented people with a real passion for space innovation.

We're making rockets in a way that hasn't been done before disrupting a traditional industry. If you are up for the challenge, want to work on cutting-edge projects and be part of a team changing the world for better, come, join us and launch your career!

Want to find out more about us?