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Hermeus

Develops hypersonic defense aircraft and engines

Mechanical Engineer

Design EngineeringConfirmed live in the last 24 hours
Full-timeLos Angeles, CA, USA

About the Job

Requirements

  • A bachelor's degree in mechanical engineering, aerospace engineering, or physics is required.
  • At least 1 year of experience with electromechanical design, analysis, and testing is required; internships and significant student project experience qualify.
  • The person hired must be a U.S. person as defined by 22 C.F.R. § 120.62 or otherwise eligible for deemed export licensing.

Responsibilities

  • Design structures supporting vehicle subsystems such as hydraulics, fuel systems, propulsion, and avionics.
  • Perform structural and thermal analyses using hand calculations and finite element analysis.
  • Lead trade studies across mechanical, fluid, and avionics subsystems, emphasizing mass efficiency, cost, and performance.
  • Collaborate with manufacturing, supply chain, and test teams to ensure designs are practical, producible, and aligned with program objectives.
  • Own hardware development from concept through design, fabrication, integration, and test.
  • Present technical content in internal reviews and represent the team in cross-functional and supplier/customer design reviews.

Desired Qualifications

  • Hands-on prototyping and mechanical assembly experience for complex systems.
  • A strong foundation in engineering fundamentals, including statics, dynamics, heat transfer, fluid mechanics, and vibration.
  • Proficiency in computer-aided design (NX preferred), finite element analysis (Ansys preferred), and product lifecycle management tools (Teamcenter preferred).
  • Familiarity with mechanical testing under vibration, fatigue, shock, vacuum, and thermal-load conditions.
  • Experience collaborating across disciplines such as fluids, avionics, and manufacturing to deliver integrated systems.
  • Demonstrated cradle-to-grave ownership of technically complex projects.

About the Company

Hermeus

Develops hypersonic defense aircraft and engines

Hermeus designs and builds high-Mach and hypersonic aircraft for defense, using uncrewed test platforms and a reusable propulsion system. Its core approach centers on the Quarterhorse testbed and the Chimera engine, a turbine-based combined cycle that starts in a turbojet mode for runway takeoff and transitions to a ramjet for speeds above Mach 5. The company differentiates itself with rapid, hardware-focused prototyping drawn from a spaceflight background and a clear path to production through government contracts with the DoD, DIU, and ABMS programs. Its near-term goal is to mature Quarterhorse and Darkhorse into production-capable systems for defense missions, while its long-term vision includes Halcyon, a 20-seat commercial airliner flying transatlantic routes in about 90 minutes.

Company size
201-500
Company stage
Debt Financing
Total funding
$566M
Headquarters
Atlanta, GA
Founded
2018

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