Fluid Systems / Process Design Engineer

In this role you will design ground fluid infrastructure for Isar’s Spectrum rocket program, enabling safe, reliable test and launch operations. You work with Propulsion and Launch Vehicle teams to translate requirements into robust fluid-system concepts and layouts. You will tackle sizing, simulations, and selection of hardware for cryogenic, high-pressure, and conditioning systems, influencing both test rigs and launch bases. You will lead design reviews and risk assessments, and contribute to commissioning and on-site operations. This is a hands-on, cross-functional opportunity to shape the ground systems that power rapid space access.

• Employee Participation Program (share in success)
• 30 days of vacation
• Company pension plan with 20% employer contribution after probation
• Subsidised lunches
• Deutschlandticket public transport
• Individual learning allowance

• Design fluid systems for test and launch facilities (e.g., rocket engine test rigs, launch pads)
• Perform sizing calculations and simulations for fluid systems (cryogenic storage, distribution, high-pressure gas)
• Select and procure fluid hardware (tanks, pumps, heat exchangers, valves, regulators, instrumentation)
• Prepare technical documentation (PFDs, P&IDs, datasheets) for manufacturing planning
• Lead or contribute to system design reviews and risk assessments
• Lead or support factory and site acceptance tests; contribute to commissioning planning and hands-on site operations
• Support test and launch campaigns on-site or remotely with data analysis

• B.Sc. or M.Sc. degree in aerospace, mechanical, process/energy/chemical engineering or equivalent
• 0 to 5 years of relevant professional experience
• In-depth knowledge of fluid mechanics and thermodynamics
• Ability to apply theory to practical solutions for fluid/mechanical problems
• Basic knowledge of high-pressure gas and cryogenic liquid systems for rocket testing and launching facilities

• Adjusting self-sufficiently to changing work environment
• Highly organized, effective team player with attention to detail
• Proactive, open, effective, constructive communication
• Fluid mechanics and thermodynamics applied to hardware
• Modeling/simulation tools such as EcosimPro; Python/Matlab; Excel
• Hands-on experience with piping systems, commissioning or testing operations