Hermeus is a venture-backed defense aviation company reclaiming the lost art of rapid iterative prototyping to build the fastest aircraft in the world today. By prioritizing relentless hardware iteration, we deliver high-speed systems at the pace of the modern battlefield. We work with the Department of War to provide the high-speed capabilities our nation and its allies need to maintain a durable, asymmetric advantage.
About The Role:
In your role as a Performance Engineer, you willbe responsible foranalyzing, modeling, andoptimizingaircraftand propulsion system performance across the full flight envelope. This position requires strongexpertisein gas turbine engine cycles, aerodynamics, and thermodynamics to supportaircraftdevelopment, certification, and operational excellence.
Responsibilities:
- Perform thermodynamic cycle analysis of turbofan engines, evaluating thrust, TSFC, efficiency, operability margins, and performance across the flight envelope.
- Develop,validate, andmaintainpropulsion system performance models to supportaircraftintegration, certification, and customer deliverables.
- Generateaircraftand engine performance data for flight manuals, flight computers, and executive-level program assessments.
- Conduct runway and mission performance analyses
- Support engine-airframe integration efforts, including takeoff thrust optimization and safety-focused performance methodologies.
- Author and execute flight test plans to evaluate propulsion robustness, operability, and early design maturity.
- Contribute to advanced combustion and fluid dynamics modeling efforts
- Support experimental testing efforts including aeroacoustics, flow visualization (Schlieren), wind tunnel testing, and telemetry data analysis.
- Play a key role within ourHEAT (High-Enthalpy Airflow Test) facility, including sizing, analyzing, andoptimizingthis world-class test infrastructure.
Requirements:
- Bachelor’s degree in Aerospace Engineering, Mechanical Engineering, or related field.
- Strong foundationin thermodynamics, compressible flow, gas turbine engine cycles, and aerodynamics.
- Experience with propulsion performance modeling andaircraftperformance analysis
- Proficiencyin MATLAB andPython
- Demonstrated ability to interpret andvalidatecomplex engineering data sets.
Preferred Skills and Experience:
- Master’s degree in Aerospace Engineeringwith focus on propulsion, aerothermodynamics, or combustion.
- Experience supporting turbofan engine development programs
- Background in CFD, Large Eddy Simulation (LES), or reduced-order modeling techniques.
- Exposure to experimental aerodynamics, aeroacoustics, or high-speed flow diagnostics.
- Strong systems-level thinking with attention to both detailed analysis and program-level impacts.
- Demonstrated leadership in technical initiatives or cross-functional collaboration.
$91,800 - $187,450 a year
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