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Turbopump Design Engineer (m/f/d)

POLARIS Raumflugzeuge GmbH.com

Office

Bremen

Full Time

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 a Turbopump 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.
  • 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 0D/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
  • Close collaboration with analysis, manufacturing, procurement, quality, and suppliers
  • Oversee the testing and validation of turbopump components and systems to ensure compliance with aerospace standards
  • Degree in Space Engineering, Aerospace Engineering (M.Sc.) or similar
  • Minimum of 2 years of full-time experience
  • Extensive knowledge in turbomachinery, including pumps, turbines and their integration
  • Profound understanding of physics, fluid dynamics, manufacturing processes, rocket engine/propulsion systems
  • Deep understanding of cryogenic fluids (e.g., LOX) and materials suitable for high-pressure, high-temperature environments.
  • Proficiency with Creo and ANSYS Fluent for design and verification
  • 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 CV 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!

Turbopump Design Engineer (m/f/d)

Office

Bremen

Full Time

January 16, 2026