Staff Integration and Test Responsible Engineer in Long Beach

Energy Jobline ZR; Long Beach (CA); On-site; USD 164,000 - 246,000; Full time

Job summary

Relativity Space in Long Beach, CA, is seeking a hands-on Test Engineer to design and maintain the ISP HITL test environment, integrating hardware, avionics, and software to validate flight software against real hardware.

You will build bench infrastructure, develop CI/regression pipelines, and debug complex failures across hardware and software, enabling rapid, credible engineering progress toward Terran R integration and launch.

Qualifications

• 7+ years in test engineering
• Experience architecting automated test frameworks for hardware, firmware, and software
• Strong software skills for test automation and validation pipelines
• Ability to own a complex test capability end-to-end
• Hands-on hardware and embedded systems experience
• Familiarity with Ethernet, UART, and SPI interfaces

Responsibilities

• Design, build, and maintain the ISP HITL test environment end to end, including rack fabrication, avionics installation, breakout hardware, load emulation, harness fabrication and routing, and supporting test equipment
• Build the simulation, data-acquisition, and control infrastructure that drives stimulus into the system, captures results, and allows flight software to be exercised against real and representative spacecraft hardware
• Develop software fixturing, automated test frameworks, and CI/regression pipelines that validate every software change on hardware with automated pass/fail adjudication, regression detection, and clear failure reporting
• Debug integrated failures across flight software, avionics, interfaces, harnessing, timing, communications, and test infrastructure until root cause is understood
• Validate timing-sensitive behavior and interfaces across sensors, actuators, payloads, avionics, and communication buses
• Establish dashboards, telemetry views, configuration control, and test procedures that make system health, test coverage, anomalies, and requirements traceability clear
• Drive final integration and test of flight hardware leading into launch, coordinating with subsystem responsible engineers to ensure hardware and software are designed for integration and test from the beginning

Skills

Test engineering

Automation

CI pipelines

Embedded systems

Telemetry/logging

Education

Engineering degree

Tools

Test automation tools

CI systems

Job description

Job DescriptionJob Description

At Relativity Space, we're building rockets to serve today's needs and tomorrow's breakthroughs. Our Terran R vehicle will deliver customer payloads to orbit, meeting the growing demand for launch capacity. But that's just the start. Achieving commercial success with Terran R will unlock new opportunities to advance science, exploration, and innovation, pioneering progress that reaches beyond the known.

Joining Relativity means becoming part of something where autonomy, ownership, and impact exist at every level. Here, you're not just executing tasks; you're solving problems that haven't been solved before, helping develop a rocket, a factory, and a business from the ground up. Whether you're in propulsion, manufacturing, software, avionics, or a corporate function, you'll collaborate across teams, shape decisions, and see your work come to life in record time. Relativity is a place where creativity and technical rigor go hand in hand, and your voice will help define the stories we're writing together. Now is a unique moment in time where it's early enough to leave your mark on the product, the process, and the culture, but far enough along that Terran R is tangible and picking up momentum. The most meaningful work of your career is waiting. Join us.

About the Team:

The Interplanetary Sciences Program is building a philanthropically funded Mars science orbiter targeted to launch in 2028. You will build the integrated hardware-in-the-loop (HITL) test capability that allows the spacecraft team to test early, continuously, and with real hardware. Then carry that ownership into final spacecraft integration and test leading up to flight.

This is a hands-on integration and test role spanning hardware, software automation, and spacecraft-level validation. You will take the HITL environment from an empty rack to a running, automated, always-on validation system that proves our payloads, avionics, flight software, and interfaces work together as intended.

You will build the bench, the software fixturing that exercises flight software against real and representative hardware, and the CI and regression infrastructure that continuously checks the system as it evolves. You won't just execute test procedures—you'll understand what each test proves, why it matters, and whether the result is actually credible.

You will work shoulder to shoulder with engineers across the spacecraft. If you like owning a capability end to end, debugging across hardware and software boundaries, and being the reason the rest of the program can move quickly with confidence, this is that seat.

About the Role:

• Design, build, and maintain the ISP HITL test environment end to end, including rack fabrication, avionics installation, breakout hardware, load emulation, harness fabrication and routing, and supporting test equipment.
• Build the simulation, data-acquisition, and control infrastructure that drives stimulus into the system, captures results, and allows flight software to be exercised against real and representative spacecraft hardware.
• Develop software fixturing, automated test frameworks, and CI/regression pipelines that validate every software change on hardware with automated pass/fail adjudication, regression detection, and clear failure reporting.
• Debug integrated failures across flight software, avionics, interfaces, harnessing, timing, communications, and test infrastructure until root cause is understood and fed back to the responsible design teams.
• Validate timing-sensitive behavior and interfaces across sensors, actuators, payloads, avionics, and communication buses, including longer-duration and soak testing where appropriate.
• Establish dashboards, telemetry views, configuration control, and test procedures that make system health, test coverage, anomalies, and requirements traceability clear to the broader engineering team.
• Drive final integration and test of flight hardware leading into launch, coordinating with subsystem responsible engineers to ensure hardware and software are designed for integration and test from the beginning.

About You:

• 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
• A track record of building test automation and CI/regression infrastructure from the ground up, including telemetry/logging, automated pass/fail, and continuous test execution
• Hands-on hardware and embedded systems experience, including bench troubleshooting with standard electronics equipment and familiarity with interfaces such as Ethernet, UART, and SPI
• Demonstrated ability to own a complex test capability end to end, drive integrated hardware/software failures to root cause, and coordinate effectively across engineering teams

Nice to haves but not required:

• Experience standing up a test bench, HITL system, SIL/HIL environment, lab automation capability, or integrated test platform from scratch
• Experience with spacecraft, launch vehicles, satellites, robotics, autonomous systems, aircraft, vehicles, medical devices, industrial equipment, or other high-reliability hardware
• Hands-on experience with harnessing, cable fabrication, breakout boards, rack wiring, or test equipment setup
• Experience helping establish test practices, tools, or team processes in a fast-moving engineering environment

At Relativity Space, we are committed to transparency and fairness in our compensation practices. Actual compensation will be determined based on experience, qualifications, and other job-related factors.

Compensation is only one part of our total rewards package. Relativity Space offers competitive salary and equity, a generous PTO and sick leave policy, parental leave, an annual learning and development stipend, and more!

Hiring Range: $164,000-$246,000 USD

We are an equal opportunity employer and value at our company. We do not discriminate on the basis of , , , , , , , marital status, veteran status, or status.