Turbopump Design and Simulation Engineer (m/f/d)

Unternehmen : Polaris Raumflugzeuge Gmbh

Auftragstyp : Vollzeit

Bremen, Germany

Arbeitsbeschreibung - Turbopump Design and Simulation Engineer (m/f/d)

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 a Turbopump Design and Simulation Engineer (m/f/d).

Your mission

We are looking for a detail-oriented hands-on engineer (m/f/d) to design, execute and manage turbopump design and integration activities for our spaceplane demonstrators. In this role, you will work with cross-functional teams-mechanical, electrical, fluid system and control-to validate turbopump performance, reliability, and safety.

Design and develop turbopumps for LOX/RP1 linear aerospike rocket engines.
Use CFD, FEA, and analytical system modelling tools for performance prediction and optimization of key performance parameters like mass flow rates, pressure differences and overall efficiency.
Re-iterate the design by performing FEA and CFD analysis.
Collaborate with cross-functional teams, including propulsion, structures, and fluid system engineers, to integrate turbopump into the rocket engine unit.
Selection of suppliers and components in close collaboration with manufacturing and procurement teams
Conduct hydrodynamic sizing, design, and analysis work for inducers, impellers, diffusers, nozzles, turbines, and other turbomachinery.
Additionally, design the accessories for the pump, including casing, shaft seals, bearings, and lubrication systems.
Support turbopump testing team for data review and inspections.
Perform fault tree investigations and root cause analysis

Your profile

Master’s degree in Mechanical or Aerospace Engineering (or related field) with 2-3 years of experience, or Bachelor’s degree in Mechanical or Aerospace Engineering with 4-5 years of relevant experience.
Demonstrated experience in turbomachinery including high-performance pumps, rotors, turbines, volutes, nozzles, shafts, seals, and bearings.
Strong foundation of gas-turbine thermodynamics, fluid mechanics, material science, rocket propulsion systems, hydrodynamic/aerodynamic design, and fundamentals of turbomachinery. 
Extensive knowledge of cryogenic fluids (e.g. LOX) behavior in high temperature and high-pressure environments.
Proficiency with CAD software (CREO/CATIA/Solidworks) as well as FEM/CAD simulation software (Ansys Workbench)
Excellent written and verbal communication; able to produce clear technical documentation.

What we offer

Long-term prospects with a permanent employment contract
Being part of an international, highly motivated team
Flat hierarchies and short decision-making processes
Flexible working hours
Use of our company fitness program with EGYM Wellpass
Take benefit of attractive employee discounts through Corporate Benefits
The opportunity to contribute your ideas and actively shape the company

Join us in shaping the future of space transportation and making a positive impact. If your profile fits our requirements, 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.

About us

Our mission is to pioneer a new era of space transportation by flying to space and back like an aircraft — taking off and landing at airports, and reusing our spaceplanes for hundreds of missions. We combine unprecedented cost efficiency with unique flexibility and safety, enabling breakthrough advances in both space transportation and hypersonic flight. This vision is currently pursued by over 100 employees every day.

At POLARIS we value on-site collaboration, so we generally do not offer home office. Please apply only if you feel comfortable with this working model – it saves valuable time for everyone involved.

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