Propulsion Component Responsible Engineer

<div><span data-olk-copy-source="MessageBody">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.</span></div><div><br></div><h3><strong>As a Propulsion Component Responsible Engineer you will own the development of&nbsp;flight-critical mechanical and fluid system components, including valves, actuators, and integrated propulsion hardware. You will be responsible for taking hardware from&nbsp;clean-sheet design through build, test, qualification, and production, working in close collaboration with propulsion and vehicle teams. Your work will directly support systems operating in high-pressure, high-temperature, and dynamic flight environments.</strong></h3> <div>&nbsp;</div><h3>Responsibilities: </h3> <li>Own propulsion components (e.g., valves, actuation systems, and fluid control hardware) from concept through flight-ready delivery</li> <li>Design for extreme environments, including high pressure, temperature, and transient operating conditions</li> <li>Drive engineering trade studies across performance, manufacturability, reliability, and testability</li> <li>Execute clean-sheet design, analysis, and integration of propulsion components</li> <li>Support hardware through rapid build–test–iterate cycles</li> <li>Lead troubleshooting and root cause analysis during development and test</li> <li>Work with propulsion and vehicle system owners to define requirements, interfaces, and integration strategies</li> <li>Perform system-level sizing, architecture, and design trades</li> <li>Lead development testing, qualification, and acceptance of flight hardware</li> <li>Support transition from prototype to repeatable, production-ready designs</li> <li>Define operational limits and ensure reliability and safety across all phases of use</li> <li>Make risk-informed engineering decisions aligned with program goals and timelines</li> <li>Prioritize work effectively in a fast-paced, evolving development environment</li> <h3>Requirements </h3> <li>Bachelor’s degree in Mechanical Engineering, Aerospace Engineering, or related field</li> <li>5+ years of experience developing mechanical or propulsion-related hardware</li> <li>Experience contributing to hardware through design, build, and test cycles</li> <li>Strong fundamentals in fluids, thermodynamics, mechanics, and materials</li> <li>Hands-on experience with mechanical design, assembly, or integration&nbsp;</li> <div>&nbsp;</div><h3>Preferred Skills and Qualifications </h3> <li>Experience with propulsion systems, high-pressure fluid systems, or aerospace mechanisms</li> <li>Experience designing components such as valves, actuators, or fluid control hardware</li> <li>Familiarity with high-temperature materials, sealing strategies, and failure modes</li> <li>Strong knowledge of GD&amp;T, tolerance stack-up, and precision assemblies</li> <li>Experience supporting hardware testing and resolving real-world failures</li> <li>Proficiency with CAD tools (NX preferred) and analysis tools (ANSYS or similar)</li> <li>Experience working in rapid hardware development environments (startup or flight programs)</li> <li>Scripting experience (Python, MATLAB, or similar) for analysis or automation</li> <h3>Additional Requirements:</h3> <li>Willingness to work hands-on in build, integration, and test environments</li> <li>Ability to support extended hours during critical test campaigns</li> <li>Willingness to travel to support hardware builds and flight tests</li> <li>Must be eligible to access export-controlled information</li>