Junior Simulations Engineer (Thermal)


Vilnius/ Kaunas (Lithuania)


Electronics & Mechanical Engineering

Simulations team is looking for a curious and motivated Junior Simulations Engineer (Thermal) who will be contributing to the design and development of nano and micro satellites by performing thermal calculations and analyses.  

As Junior Simulations Engineer you will: 

  • Support business development department with thermal control system sizing, feasibility checks, trade-off studies at pre-contract stage 
  • Suggest reliable thermal control system design solutions to ensure electronic components are kept within operational temperature ranges 
  • Assist mechanical design engineers with CAD model geometry preparation (defeaturing) for simulations 
  • Collaborate with colleagues from other departments and payload suppliers to gather input information required for the thermal simulations 
  • Perform thermal analysis on spacecraft and subsystem level with Comsol Multiphysics 
  • Prepare documentation to present the results to colleagues from other departments and customers 
  • Liaise with international suppliers to procure thermal control system components 
  • Correlate simulation models to test and in-orbit data 

We expect you to:  

  • Have a passion for various engineering simulations and a desire to learn fast 
  • Have a degree in mechanical/aerospace engineering or equivalent 
  • Have a good understanding of heat transfer and thermodynamics 
  • Be a proficient user of at least one CAD software (SolidWorks or equivalent) 
  • Have some experience with thermal analysis (Comsol Multiphysics or equivalent) 
  • Have an advanced knowledge of MS Office (Excel, Word, PowerPoint) 
  • Have good English language skills (at least B1) 
  • Enjoy working in a team and independently 

Nice to have: 

  • Work/internship experience in space industry 
  • Understanding of orbital mechanics 
  • Familiarity with ECSS and NASA standards/handbooks 
  • Programming skills (Java, Python) 
  • Experience with thermal testing 


  • Starting at 1900 euros gross/a month.
  • The final offer will depend based on the level of competencies and experience
  • Flexible work hours
  • LAN parties with CS tournaments and sci-fi movies in cinemas (yes, geeky squad, what can we say)
  • Team events - airsoft, curling, parties, orienteering and much more
  • Annual budget for sports (250 euros per year)
  • Snacks in the kitchen to fuel your productivity
  • Workshops, global conferences, industry’s meetups and trainings of your choice (doesn’t matter if you want to be like Han Solo or Luke Skywalker, just tell us which skills you wish to boost)
  • Paid days off if you are not feeling well
  • Free parking, bike shed, shower, table tennis, mini-football and company merch (the basics, but nice to have)
  • Oh, did we mention space? Possibly it’s your once-in-a-lifetime chance to launch your creations to space!

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