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Hardware Development Engineer I

Relativity SpaceLong Beach, CAPosted 2 weeks ago

Pay
$90k – $136k
per year
Type
Entry level
Full time
Where
Long Beach, CA
Who
Bachelor's
Graduates
Apply by
Nov 11, 2026
Date from the posting

About the Team

The Propulsion team at Relativity is focused on developing and delivering highly performant and manufacturable engines for Terran R. Engineers own the entire lifecycle of their parts, from initial design through production to qualification and flight. The team fosters a culture of bottoms-up decision-making, free from technical gatekeeping, where ownership and accountability are key at all levels. Designing engines with a quarter million pounds of thrust is just the beginning. As the flight configuration enters qualification, the team is now exploring modifications for future engines, including thrust upgrades, new cycles, and design for mass production.

About the Role

Propulsion Hardware Development Engineers are responsible for taking the Aeon-R engine from paper designs to highly reliable, high-performance hardware. This role requires deep engagement with both the design and production teams to ensure our designs are readily manufacturable and our manufacturing processes are reliable and production-ready. You will also be responsible for developing new manufacturing processes to improve Aeon-R engines and the Terran-R vehicle. You should have strong engineering fundamentals as well as a knowledge of aerospace manufacturing techniques to be an effective Hardware Development Engineer. The role demands close interaction with propulsion hardware, including defining build procedures and hands-on build and integration of hardware.

Responsibilities

  • Develop manufacturing processes, new techniques, and tools to enable high rate productions and increase engine performance.
  • Work hand-in-hand with the design and analysis teams to simplify our propulsion systems.
  • Participate in design reviews and lead design for manufacturing (DFM) initiatives.
  • Design test set-ups, coordinate and execute development, qualification, and acceptance testing of systems, and conduct data reviews.
  • Participate in test failure investigations and implement corrective actions.
  • Design, analyze, and procure tooling for piece part manufacturing and system testing.
  • Create and maintain development build and test schedules.

About You

  • Bachelor’s degree in a science, engineering, technology, or mathematics field.
  • Hands-on hardware experience with fluid and/or mechanical systems.
  • Demonstrated drive to deliver on ambitious schedules, especially if unconventional and creative solutions are necessary to do so.

Nice to Haves (Not Required)

  • 1+ years of related experience.

Skills mentioned

  • Manufacturing processes
  • DFM
  • Mechanical Systems
  • Test Engineering
  • Fluid Systems
  • Aerospace Manufacturing

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