Relativity Space
Staff HITL Engineer
$164K–$246K
Long Beach, California, United States · Staff · Full-time · Posted Sep 2, 2026
- Experience
- 7+ years in test engineering.
- Education
- Degree in computer, electrical, aerospace, or a related engineering field, or equivalent hands-on experience.
About the job
Build and own an automated hardware-in-the-loop test capability for a Mars science orbiter, then lead spacecraft integration and testing through launch.
What you'll do
- Design, build, and maintain the HITL test environment, including avionics, harnesses, breakout hardware, and test equipment.
- Develop simulation, data-acquisition, test automation, and CI/regression infrastructure to validate software and hardware continuously.
- Debug integrated failures and coordinate final flight-hardware integration and testing with spacecraft engineering teams.
What they ask for
- Degree in computer, electrical, aerospace, or a related engineering field, or equivalent hands-on experience.
- 7+ years of experience in test engineering, including architecting automated test frameworks for integrated hardware, firmware, and software systems.
- Strong, current software skills for test automation, tooling, and validation pipelines; experience building test automation and CI/regression infrastructure from the ground up.
- Hands-on hardware and embedded systems experience, including bench troubleshooting and familiarity with Ethernet, UART, and SPI.
Nice to have
- Experience standing up a test bench, HITL, SIL/HIL environment, lab automation capability, or integrated test platform from scratch.
- Experience with high-reliability hardware or hands-on harnessing, cable fabrication, breakout boards, rack wiring, or test equipment setup.
Pay
$164,000 — $246,000 USD (base salary)
Tools
Ethernet, UART, SPI
Model-written summary · the original posting is authoritative