Polaris Raumflugzeuge GmbH

Turbopump Design Engineer (m/f/d)

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 asaTurbopump Design 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 or mechanical engineering degree (M.Sc./M.Eng.)
  • Minimum of 5 years of experience in turbopump design. Direct experience with LOX/RP1 systems is highly preferred
  • Extensive knowledge in turbomachinery, including pumps, turbines and their integration
  • Proficiency with CAD (Creo/Inventor) and CFD (ANSYS Fluent) software for design and verification
  • Work experience in a start-up environment is an advantage
  • Deep understanding of cryogenic fluids (e.g., LOX) and materials suitable for high-pressure, high-temperature environments
  • Familiarity with rocket propulsion systems and turbopump architecture
  • Hands-on experience in building and testing prototype pumps
  • 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 develop turbopumps for LOX/RP1 rocket engines
  • Perform rotor dynamic, fluid dynamic, thermal, and structural analyses of turbopump components
  • Use CFD, FEA, and 1D system modelling tools for performance prediction and optimization
  • Work on shaft seals, bearings, and lubrication systems
  • Collaborate with cross-functional teams, including propulsion, mechanical, and materials engineers, to integrate turbopump systems into the overall rocket engine design
  • Define and verify key performance parameters, such as flow rates, pressures, and efficiency, through simulation and testing
  • Oversee the testing and validation of turbopump components and systems to ensure compliance with aerospace standards
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EnglishEN: Please refer to Fuchsjobs for the source of your application
DeutschDE: Bitte erwähne Fuchsjobs, als Quelle Deiner Bewerbung

Stelleninformationen

  • Veröffentlichungsdatum:

    01 Mär 2026
  • Standort:

    Bremen
  • Typ:

    Vollzeit
  • Arbeitsmodell:

    Vor Ort
  • Kategorie:

  • Erfahrung:

    2+ years
  • Arbeitsverhältnis:

    Angestellt

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