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Isar Aerospace is seeking a Combustion Equipment Engineer to own the design, analysis, development, and qualification of combustion equipment for liquid rocket engines. You will be the technical lead responsible for translating engine-level requirements into robust combustion device architectures and maturing them through analysis, design, manufacturing, and hot fire testing.
Key responsibilities include:
- Own the design and development of liquid rocket engine combustion equipment, including gas generators, pre-burners, injector heads, combustion chambers, and ignition systems
- Define component requirements, operating envelopes, interface conditions, and technical budgets based on engine performance, lifetime, and operability needs
- Perform preliminary and detailed sizing of combustion devices using first-principles methods and analytical or numerical tools
- Lead architecture and design trade-offs covering injector concepts, mixture distribution, pressure drop, combustion efficiency, stability, ignition, cooling, materials, and manufacturability
- Plan, support, and evaluate component and engine-level test campaigns, including instrumentation definition, test predictions, data review, and correlation of models with hot fire results
- Investigate combustion anomalies and performance deviations, identify root causes, and define technically justified corrective actions
- Own the technical development roadmap for your hardware, including maturation activities, design reviews, manufacturing follow-up, and qualification planning
- Work closely with cycle, turbomachinery, valves, feed systems, controls, structures, thermal, manufacturing, and test teams to deliver an integrated propulsion system
Isar Aerospace is a fast-growing New Space company building modern launch solutions for small and medium-sized satellites. The company is privately funded by world-leading technology investors and is focused on providing sustainable, environmentally friendly access to Low Earth Orbit.
Requirements:
- MSc in aerospace engineering, mechanical engineering, or comparable technical discipline, or equivalent professional experience
- Several years in liquid rocket engine development with significant responsibility for combustion device design, analysis, development, or testing
- Hands-on experience with gas generators, pre-burners, or comparable high-performance liquid propellant combustion devices
- Excellent understanding of combustion, thermodynamics, fluid dynamics, heat transfer, and liquid rocket propulsion
- Significant experience in injector or combustor sizing, particularly at very high or very low O/F ratios, and in interpreting hot fire test data
- Experience owning a development roadmap through design reviews and into qualification
- Proficiency in Python, MATLAB, or comparable programming language
- Strong technical ownership and ability to make sound engineering decisions with incomplete early-phase data
- Fluent in English
- Willingness to travel occasionally for test and launch operations
Bonus skills:
- Experience with both gas generators and pre-burners across different liquid rocket engine architectures
- Experience with combustion stability, acoustic analysis, ignition transients, or operability assessment
- Experience with injector technologies such as coaxial, impinging, swirl, or pintle concepts
- Experience taking combustion hardware from initial sizing through manufacturing and hot fire qualification
