Propulsion Design Engineer, Propulsion - Engine Integration (w/m/f)

Mission Brief

As a Propulsion Design Engineer, you will drive the development of engine hardware from initial concept through qualification and production. You will be responsible for the design, analysis, and integration of engine structural components, piping, and subsystem packaging, with a strong focus on component placement, mass optimisation, and manufacturability. This includes defining engine architecture, optimising routing and interfaces, and developing design solutions that reduce weight, part count, and costs, while ensuring performance and reliability. The role requires close collaboration with multidisciplinary engineering teams and a strong understanding of engine architecture and system-level integration.

Your Role in Our Space Mission:

• Own complex engine assemblies from concept to hardware delivery, balancing technical scope, schedule, and integration requirements.
• Design and develop engine hardware and fluid routing using CAD tools, including detailed 3D models and manufacturing drawings.
• Drive the iterative development and continuous optimisation of flight-proven hardware.
• Implement engine layout improvements while complying with engine functional requirements.
• Define and manage interfaces with adjacent systems and collaborate closely with fluid system, combustion, structures, manufacturing, and testing teams.
• Perform structural and thermal analyses to ensure component performance and system reliability.

Qualification Checklist

• M.Sc. or M.Eng. in Aerospace Engineering, Mechanical Engineering, or a related field.
• Proven engineering excellence and experience solving complex technical problems.
• Experience in mechanical design of complex assemblies within the aerospace sector.
• Experience with machining processes, tolerancing, and technical drawing standards.
• Proficiency with CAD software, preferably Siemens NX, including detailed part and assembly modelling and drawing creation.
• Experience with design for manufacturability principles.
• Experience in structural and thermal analysis, employing both analytical methods and simulation tools for component and system design.
• Ability to effectively collaborate within multidisciplinary and cross-functional teams.
• Highly organised and proactive, with strong attention to detail.
• Passion for rocket propulsion and space.
• Driven, curious, and eager to learn.
• Fluent in English.

Bonus Skills

• Experience in rocket engine design and development.
• Acquainted with fluid plans and rocket engine architectures.
• Experience with Python or similar programming languages for engineering automation.
• Experience using Siemens Teamcenter or other PLM systems.
• Professional working proficiency in German.

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!

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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.