Senior Rocket Propulsion Systems Engineer

Stellenbeschreibung:

Why us?

POLARIS Raumflugzeuge GmbH develops innovative transportation systems that redefine access to space for payloads and passengers. As we expand our operations, we are seeking a skilled and driven individual to join us at our headquarters in Bremen as Senior Rocket Propulsion Systems Engineer.
Join our dynamic and fast-growing startup and be part of our exciting journey to revolutionize space transportation and hypersonics. We are a passionate team dedicated to pushing boundaries, fostering innovation, and creating impactful solutions that make a difference.


Your profile

  • Successfully completed aerospace engineering degree (M.Sc./M.Eng.)
  • Strong understanding of thermodynamics, fluid mechanics, heat transfer, and combustion
  • Several years of working experience in the field of rocket propulsion
  • Experience with rocket propulsion system analysis tools (e.g. CEA, Ecosimpro, Ansys)
  • Programming skills would be an advantage (e.g. Python, Matlab)
  • Experience with CAD and CFD software would be an advantage
  • Work experience in a start-up environment is an advantage
  • Proactive thinking, high level of motivation, flexibility, and team-working skills
  • Proficiency in both German and English

Join us in shaping the future of space transportation and making a positive impact. Apply now by sending your complete application portfolio, including CV, certificates and a cover letter outlining your relevant experience and why you are the ideal candidate for this role. We look forward to welcoming you to our team!

Your mission

  • Design and analysis of conventional and linear aerospike rocket propulsion systems
  • Design and analysis of liquid rocket engine components, including injector, combustion chamber, nozzle, and igniter
  • Thermodynamic, fluid dynamic, and thermostructural analysis using tools such as CEA, Ansys Mechanical & Fluent, MATLAB or Ecosimpro
  • Material selection, component sizing, and thermal protection strategies
  • Optimisation of the engine performance and efficiency
  • Collaboration with test and DAQ engineers to define test plans and analyse test data
  • Contribute to system-level propulsion architecture decisions
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Stelleninformationen

  • Typ:

    Vollzeit
  • Arbeitsmodell:

    Vor Ort
  • Kategorie:

  • Erfahrung:

    2+ years
  • Arbeitsverhältnis:

    Angestellt
  • Veröffentlichungsdatum:

    05 Nov 2025
  • Standort:

    Bremen

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