Propellant Supply & Management Engineer (m/f/d)

Why us?

POLARIS Raumflugzeuge GmbH develops innovative transportation systems that redefine access to space for payloads and passengers. We are continuing to expand our team and are looking to fill the position of Propellant Supply & Management Engineer (m/f/d).

Your mission

• Design and Analysis of propellant supply systems for a two-stage winged hypersonic UAV
• Design and Analysis of tank systems for kerosene and liquid oxygen applications
• Design and interpretation of piping and instrumentation diagrams (P&ID) based on requirements and functional needs
• Define and verify key performance parameters, such as flow rates, pressures, and efficiency, through simulation and testing
• Define specifications for valves, solenoid valves, control valves, pressure regulators, pressure vessels and safety components
• Fluid system component selection, trade-off studies and procurement
• Simulation and analysis of system behaviour
• Design fluid system parts and assemblies in CAD
• Define operation and safety procedures for the fluid system

Your profile

• Successfully completed aerospace or mechanical engineering degree (M.Sc./M.Eng.)
• Experience in propellant management system design for aerospace vehicle preferred
• Programming skills in Python, C++, Matlab preferred
• Proficient with CAD software (Inventor/Creo)
• Experience with simulation software would be an advantage (EcosimPro, Ansys)
• Hands-on experience with assembling, testing and troubleshooting fluid systems.
• Proficiency in both German and English
• Excellent analytical and interdisciplinary skills
• fluent English, German skills desirable
• Proactive mindset, high level of motivation, flexibility, perseverance, and ability to work in a team
• Work experience in a start-up environment is an advantage

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 100employees 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.