Turbopump Turbine Engineer (m/f/d)

Mission Brief As a key member of the Turbomachinery team you will lead the end to end development of turbines for pump fed liquid propellant rocket engines. You will take a turbine from conceptual sizing and architecture trades through detailed aerodynamic and thermomechanical design, into manufacturing, test and qualification, and you will own the technical decisions along the way. Your Role in Our Space Mission: Develop, maintain and improve reduced order design models for turbomachinery components, particularly turbines, for use in engine cycle analysis. Lead the conceptual design and architecture trade-offs for turbomachinery systems, including shaft arrangements and basic seal and bearing selection. Develop and maintain detailed three dimensional design workflows for turbine components, and perform aerodynamic analyses together with the CFD team. Work with the Engine Structures team on material selection for turbine rotors and stators operating at high-temperature and high pressure. Own the technical development roadmap for your hardware, including maturation activities, design reviews, design risk assessments, manufacturing follow up and qualification planning. Plan, support and evaluate component and integrated engine level test campaigns, including instrumentation definition, test predictions and data review, and derive or validate models from the results. Work closely with the Cycle, Turbomachinery, Valves, Feed Systems, Controls, Structures, Thermal, Manufacturing and Test teams to deliver an integrated propulsion system. Qualification Checklist MSc in aerospace engineering, mechanical engineering or a comparable technical discipline, or equivalent professional experience. 4+ years of professional experience in liquid rocket engine development, with significant responsibility for turbine development and testing. Hands-on experience in the design, analysis, development or testing of pump fed liquid propellant rocket engines. Excellent understanding of turbine aerodynamics, turbo pump power balance and architecture, thermo-mechanical design and material selection for rotating hardware. Working knowledge of seals, bearings and centrifugal pump operation across different turbo pump applications. Proficiency in Python, MATLAB or a comparable programming language, plus CAD and CFD software, preferably Siemens NX and StarCCM+. Strong technical ownership, systems thinking and the ability to make sound engineering decisions with incomplete information. Fluent in English. Willingness to travel occasionally for test and launch operations. Bonus Skills Experience with transient cycle modelling: start up, shutdown, throttling and off nominal conditions. Experience taking an engine design from cycle definition and system-level trades into hardware and test. Experience analysing engine control, operability, stability, or failure cases. Planning and coordinating multidisciplinary engine development or test campaigns. Experience correlating models against hot fire test data. Benefits Employee Participation Program: Share in our success through our virtual company share program 30 days of vacation: Enjoy the days off to relax and recharge Company pension plan: Secure your future with our company pension plan, featuring a 20% employer contribution after the probation period Subsidised lunch: Stay energised with delicious, subsidised lunches every day Public transport ticket: Commute with ease using a fully financed Deutschlandticket Rental clothing with laundry service: Enjoy hassle-free workwear with our convenient rental clothing and laundry service Sport Clubs membership: Stay fit with our sponsored sports club memberships (EGYM Wellpass) Individual learning allowance: Grow your skills with an individual learning budget granted after the probation period Childcare allowance: Receive a childcare allowance for your non-school-age children And Much More! Discover additional perks and benefits when you join our team. Who we are We are Isar Aerospace and we are at the forefront of New Space building a modern space business to enable faster, better and cheaper access to space. Our mission is to help democratise space and use it for good in order to improve life on Earth now and for the future generations. We are a fast-growing company aiming to provide sustainable and environmentally friendly launch solutions for small and medium-sized satellites and constellations into Low Earth Orbit. The company is privately funded by world-leading technology investors with strong commitment and support and our team is made of driven and talented people with a real passion for space innovation. We're making rockets in a way that hasn't been done before disrupting a traditional industry. If you are up for the challenge, want to work on cutting-edge projects and be part of a team changing the world for better, come, join us and launch your career! Want to find out more about us? Visit www.isaraerospace.com Data Protection We process your personal data for the purpose of managing the recruitment process and assessing your application. For detailed information on how your data is processed, including your rights, please refer to our Privacy Policy . Disclaimer Isar Aerospace SE is an equal-opportunity employer committed to fairness and inclusivity. We do not prioritize any specific religion, gender, nationality, or background. Due to security clearance requirements, affiliations with countries listed under § 13 para. 1 no. 17 SÜG may affect the application process. All qualified applicants are encouraged to apply.