Fluid Systems Engineer, Propulsion (m/f/d)

The role

You will develop, analyse, and validate fluid systems for launch vehicle propulsion architecture. You will work across the development lifecycle from concept and modelling through testing and flight operations support.

What you will do

• Define fluid system requirements, architectures, and interfaces.
• Develop and maintain analytical and simulation models.
• Design fluid system hardware and assemblies.
• Create technical drawings and manufacturing documentation.
• Support component procurement, manufacturing, integration, and troubleshooting.
• Plan, execute, and evaluate component- and system-level test campaigns.
• Analyse test data and identify root causes of anomalies.
• Generate technical reports, specifications, and verification documentation.
• Ensure fluid system performance, reliability, and safety.

Required qualifications

• M.Sc. or M.Eng. in Aerospace Engineering, Mechanical Engineering, or a related field.
• Practical experience in fluid dynamics, including modelling and analysis of complex fluid systems.
• Hands-on experience in test preparation, operation, and post-test data analysis and review.
• Experience with machining processes, drawing creation, and CAD software.
• Proficiency in Python or similar programming languages for engineering applications and automation.
• Skilled in data analysis and the preparation of technical reports and engineering documentation.
• Strong communication and organisational skills.

Nice to have

• SolidWorks or Siemens NX
• Proficiency in EcosimPro/ESPSS for fluid system simulation and analysis.
• Hands-on testing experience with fluid systems, including cryogenic fluids and oxygen compatibility.

Benefits

• Employee Participation Program: virtual company share program
• 30 days of vacation
• Company pension plan with 20% employer contribution after probation period
• Subsidised lunch
• Rental clothing with laundry service
• Sponsored sports club memberships (EGYM Wellpass)
• Individual learning budget granted after probation period
• Childcare allowance
• Flexible mobility budget including Deutschlandticket, JobRad bicycle leasing, FINN JobAuto, or a fuel allowance

Before you apply

• Affiliations with countries listed under § 13 para. 1 no. 17 SÜG may affect the application process due to security clearance requirements.

About the company

Isar Aerospace is a fast-growing company building a modern space business to provide sustainable launch solutions for small and medium-sized satellites into Low Earth Orbit.