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

Isar Aerospace SE; United States; On-site; USD 120,000 - 180,000; Full time

Benefits offered by this job

Employee share program

30 days vacation

Company pension plan

Subsidised lunch

Public transport ticket

Rental clothing & laundry service

Sport club membership

Individual learning allowance

Childcare allowance

Job summary

Isar Aerospace SE is seeking a Propulsion Design Engineer to lead engine hardware development from concept through qualification and production. You will optimize layout, mass, and interfaces, collaborating with fluid, combustion, structures, and manufacturing teams to ensure performance and reliability.

You will analyze structures and thermal behavior, while driving design improvements and producing detailed 3D models and drawings using CAD tools. Fluency in English is required.

Qualifications

• MSc or MEng in Aerospace/Mechanical Eng or related field.
• Proven ability to solve complex engineering problems.
• Experience designing complex aerospace assemblies.
• Machining, tolerancing, and technical drawing standards.
• CAD proficiency, preferably Siemens NX, for part and assembly modeling.
• Experience with structural and thermal analyses.
• Strong collaboration across multi-disciplinary teams.
• Highly organized, proactive and detail-oriented.
• Fluent in English.

Responsibilities

• Own engine assemblies from concept to hardware delivery, balancing scope, schedule and integration.
• Design engine hardware and fluid routing using CAD, detailing 3D models and drawings.
• Drive iterative development and optimization of flight‑proven hardware.
• Improve engine layouts while meeting functional requirements.
• Define interfaces with adjacent systems; collaborate with fluid, combustion, structures, and testing teams.
• Perform structural and thermal analyses to ensure performance and reliability.

Skills

Analytical problem solving

Multidisciplinary collaboration

Attention to detail

English fluency

Machining processes & tolerancing

Education

MSc/MEng in Aerospace or Mechanical Eng

Tools

Siemens NX

Job description

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 3Dmodelsand manufacturing drawings.
• Drive the iterative development and continuousoptimisationof flight-proven hardware.
• Implement engine layout improvements whilecomplying withengine 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 assemblieswithinthe aerospacesector.
• Experience with machining processes, tolerancing, and technical drawing standards.
• Proficiencywith CAD software, preferably Siemens NX, including detailed part and assembly modelling and drawing creation.
• Experience with design forem
• Experience in structural and thermal analysis, employing both analytical methods and simulation tools forcomponentand system design.
• Ability to effectively collaborate within multidisciplinary and cross-functional teams.
• Highlyorganisedand 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 workingproficiencyin 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!

Want to find out more about us?

Visit www.isaraerospace.com

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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.