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Hermeus

Develops hypersonic defense aircraft and engines

Mechanical Engineer Intern

Design EngineeringConfirmed live in the last 24 hours
Internship · Summer 2027, Fall 2027Los Angeles, CA, USA$25 - $33 /hr

About the Job

Requirements

  • Must be currently enrolled in an accredited college or university as an undergraduate student or enrolled in a Master's or Ph.D. program.
  • Be pursuing a degree in Mechanical, Aerospace, Thermal Fluids, Structural, or similar Engineering.
  • Have a strong understanding of engineering first principles.
  • Have the ability to work within cross-functional teams.
  • Have a GPA of 3.0 or above.
  • Have excellent written and verbal communication skills.

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.

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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