Avionics Hardware Engineer I

About this role

Relativity Space seeks an Avionics Hardware Engineer to design and develop custom electronics for the Terran R launch vehicle. You'll manage hardware through its complete lifecycle—from initial design through flight qualification—while collaborating across propulsion, guidance, and stage engineering teams to ensure seamless vehicle integration.

What you'll do

• Design custom electronic circuits and PCBs for Terran R avionics systems using eCAD tools
• Execute board bring-up, validation, debugging, and performance testing activities
• Manage hardware development lifecycle from concept through production and flight operations
• Coordinate with cross-functional teams (mechanical, thermal, software, propulsion) on integrated solutions
• Conduct design verification and qualification testing to ensure reliability and flight readiness
• Analyze test data and troubleshoot hardware issues to meet schedule and performance requirements

What they're looking for

• PCB design and eCAD software (Altium or equivalent)
• Hardware bring-up and board-level debugging
• Embedded systems and avionics fundamentals
• Electrical schematic design and analysis
• Data analysis and test instrumentation
• Cross-functional collaboration and communication
• Project management and timeline tracking
• Embedded software integration (preferred)

Benefits

• High degree of ownership on components that will fly on Terran R
• Opportunity to shape fundamental avionics architecture
• Rapid iteration and feedback loops with integrated design-manufacturing-test structure
• Early-stage impact on product, process, and company culture
• Collaboration with talented engineers across multiple technical domains

Likely interview questions

• Walk us through a PCB design project you led from schematic to manufacturing—what were the key challenges and how did you resolve them?
• Describe your experience with hardware bring-up and board validation. What debugging tools and techniques do you rely on most?