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Hermeus

Develops hypersonic defense aircraft and engines

Build Engineer - Propulsion

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

About the Job

Requirements

  • Strong engineering first principles.
  • Bachelor's degree in mechanical, aerospace, manufacturing, or a related engineering field.
  • At least 1 year of hands-on experience with physical hardware; internships, labs, and project teams count.
  • Proven ability to design, build, break, and iterate quickly.
  • Comfort with computer-aided design (CAD), test equipment, and hand tools.
  • Familiarity with manufacturing processes such as machining, welding, and forming, and with geometric dimensioning and tolerancing (GD&T) fundamentals.
  • Must be available to work extended hours and/or weekends as needed to support critical milestones.
  • Must be willing to travel to test sites, other company offices, and partner locations as needed, up to 25%.

Responsibilities

  • Lead detailed project planning and drive hardware delivery on aggressive timelines.
  • Collaborate with high-level design concepts, turning them into detailed designs including final geometry, material selection, and design for manufacturability (DFM).
  • Drive the transition from prototype to production for complex aerospace assemblies.
  • Question process complexity by deleting parts, eliminating waste, and simplifying flow.
  • Design and implement full-stack build processes, including factory layout, tooling, test flow, and vehicle integration.
  • Develop and run test procedures for flight hardware.
  • Serve as a force multiplier across production, test, and design teams.

Desired Qualifications

  • Designed and released flight hardware.
  • Familiarity with Siemens Teamcenter and NX.
  • Leadership experience on project teams or in mentorship roles.
  • Built something that has flown, broken, or both.
  • Experience standing up production lines or test infrastructure in a fast-paced environment.

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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