Job Description

Hermeus is a high-speed aircraft manufacturer focused on the rapid design, build, and test of high-Mach and hypersonic aircraft for the national interest. Working directly with the Department of Defense, Hermeus delivers capabilities that will ensure that our nation, and our allies, maintain an asymmetric advantage over any and all potential adversaries.

As a Lead Propulsion Component Engineer you will own the development of flight-critical propulsion components—including valves, actuators, and high-performance mechanical systems operating in extreme thermal and pressure environments. This is a player–coach role: you will directly design and deliver hardware while leading a small team of engineers. You will own components from clean-sheet design through test, qualification, and flight, and your hardware will move quickly from concept to real-world operation.

Responsibilities

• Own propulsion components (e.g., high-pressure valves, actuation systems, and fluid control hardware) from concept through flight qualification
• Design for extreme environments including high temperature, pressure, and dynamic loading
• Drive trade studies across performance, manufacturability, reliability, and testability
• Execute clean-sheet design, analysis, and integration of propulsion hardware
• Lead development through rapid build–test–iterate cycles
• Support and troubleshoot hardware during ground and flight test campaigns
• Lead and mentor a team of 2–5 engineers, setting technical direction and execution priorities
• Review designs, guide engineering decisions, and ensure high technical standards
• Act as the Responsible Engineer for critical flight hardware
• Work closely with propulsion, structures, and vehicle teams to integrate components into engine and vehicle systems
• Define system requirements, interfaces, and operational limits
• Drive transition from prototype to repeatable, production-ready hardware
• Develop assembly, test, and acceptance strategies for reliable delivery

Basic Qualifications

• Bachelor’s degree in Mechanical Engineering, Aerospace Engineering, or related field
• 7+ years of experience developing mechanical or propulsion hardware
• Demonstrated experience owning hardware from concept through test or production
• Strong fundamentals in fluids, thermodynamics, mechanics, and materials
• Hands-on experience with design, build, and integration of mechanical systems

Preferred Skills and Qualifications

• Experience with propulsion systems, high-pressure fluid systems, or aerospace mechanisms
• Experience designing components such as valves, actuators, turbomachinery-adjacent hardware, or fluid control systems
• Familiarity with high-temperature materials and sealing strategies
• Strong knowledge of GD&T, tolerance stack-up, and precision assemblies
• Experience with rapid development environments (startup or flight hardware programs)
• Proficiency with CAD tools (NX preferred) and analysis tools (ANSYS or similar)
• Experience supporting hardware through test campaigns and resolving real-world failures

Additional Requirements

• Willingness to work hands-on in build, integration, and test environments
• Ability to support extended hours during critical test and flight operations
• Willingness to travel to test sites as needed
• Must be eligible to access export-controlled information

U.S. EXPORT CONTROL COMPLIANCE STATUSThe person hired will have access to information and items subject to U.S. export controls, and therefore, must either be a “U.S. person” as defined by 22 C.F.R. § 120.62 or otherwise eligible for deemed export licensing. US persons include U.S. citizens, U.S. nationals, lawful permanent residents (green card holders), and asylees and refugees with such status granted, not pending.
EQUAL OPPORTUNITYHermeus is an Equal Opportunity Employer. Employment decisions at Hermeus are based solely on merit, competence, and qualifications, without regard to race, color, religion, gender, national origin/ethnicity, veteran status, disability status, age, sexual orientation, gender identity, marital status, mental or physical disability, or any other legally protected status.