Senior Propulsion Engineer (m/f/d)

Caroline-Herschel-Str. 2/4, Ottobrunn, Germany

Full Time

4 months ago

Job description

The mission

As part of the propulsion team, you will be actively working on the development of the combustion devices of Isar Aerospace, especially the Aquila sea level and vacuum engines for the Spectrum launch vehicle. You will be in charge of the design, analysis and testing of subsystems and complete assemblies of the thrust chamber (injector head, chamber and nozzle), gas generator and ignition system. You will be leading the assessment of existing and new design concepts and provide technical guidance to the other propulsion engineers, while taking critical decisions and developing critical systems yourself.

More specifically, you will: 

  • Define scope and objectives of engine/sub-component test campaigns and work closely with the testing departments to ensure the achievement of the test objectives
  • Define, perform and present detailed performance/heat transfer/fluid-dynamic/acoustic analyses of combustion devices components and assess the test objective fulfillment
  • Anchor model predictions to test data and work closely with designers to inform design paths and validate requirement compliance
  • Guide test setups / instrumentation and infrastructure improvements based on test campaign results to increase testing cadence and test success rate
  • Define design work / improvements for the subdepartment designs and keep an overview of the interaction between the designs of all sub-components

Who you are and what you have

  • M.Sc. / Ph.D. in Aerospace Engineering, Mechanical Engineering, Physics or similar
  • At least 10 years professional experience in propulsion systems design and analysis • Strong experience in the testing of rocket thrust chamber assemblies
  • Extensive knowledge in the design of chamber-nozzle assemblies, injector heads, gas generators, ignition systems
  • Profound knowledge of modelling and test data analysis for all combustion devices ranging from ignition systems to injector elements
  • Proven track record of leading rocket engine design and testing teams • Knowledge or experience in Python programming or similar
  • Clear evidence of ownership, problem-solving skills, and effective team collaboration
  • Demonstrated drive to deliver on ambitious schedules
  • Basic engineering knowledge about additive manufacturing, laser welding, milling, heat treatment
  • Passionate about new space, curious and eager to learn
  • Driven to deliver and constantly push the boundaries
  • Take ownership and accountability for your own actions and mistakes

Nice to have:

  • Experience with analytical tools such as ANSYS Mechanical and/or ANSYS Fluent/STAR-CCM+ or similar
  • Working knowledge of engine fluid components such as valves and pressure regulators
  • Experience in manufacturing 


  • 30 days holiday
  • Subsidised lunch
  • Individual learning budget
  • Virtual company shares
  • Wellpass 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?


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