Sr Avionics Test Systems Engineer, Ground Systems

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 Avionics team is responsible for the full lifecycle of Terran R’s nervous system, designing, building, testing, installing, and operating the hardware that connects and controls every major electrical system on the vehicle and ground. The team’s structure intentionally combines avionics design, manufacturing, and test to enable rapid iteration and feedback loops. Engineers are deeply embedded into other functions within Relativity, working closely with propulsion, GNC, fluids, and stage engineering teams to ensure seamless integration and operation. Now is a unique time to join: you’ll get to help shape Terran R's fundamental avionics architecture and be given a high degree of ownership on components that will fly.About the Role:We are seeking Sr Avionics Test Systems Engineer, Ground Systems supporting our vehicle ground test support systems. Candidates with strong experience in designing, building, and deploying test systems that interface directly with flight hardware. In this role, you'll lead the development of robust electrical and mechanical systems that support vehicle test, integration, and launch in challenging environments. You’ll work cross-functionally with avionics, propulsion, structures, test, and software teams to ensure our ground systems are reliable, flexible, and safe. This position is ideal for someone who thrives on high ownership, fast iteration, and seeing their systems go from concept to launchpad.As an Sr Avionics Test Systems Engineer, Ground Systems you will:Lead design, development, build, and integrate critical ground systems that support engine test, vehicle integration, and launch operationsCollaborate cross-functionally with vehicle, propulsion, avionics, software, test, and operations teams to deliver robust, scalable systems on tight timelinesOversee fabrication, bring-up, and validation of test systems, including electrical testing, calibration, and functional checksAuthor interface control documents (ICDs) and engineering release drawings to ensure tight alignment between electrical ground support equipment and flight/avionics hardwareWork closely with safety, operations, and launch teams to ensure systems are compliant and operable under high-stakes conditionsAbout You:Undergraduate or graduate degree (BS/MS/PhD) in Electrical Engineering, Computer Engineering, Mechanical Engineering, Aerospace Engineering, or a related field5+ years of hands-on experience designing and deploying test systems or electrical integration systems in aerospace or high-reliability environmentsStrong knowledge of electrical signal integrity, grounding schemes, shielding, and power systemsHands-on experience designing, building, and commissioning electromechanical ground systemsFamiliarity with common communication protocols (e.g., Ethernet, RS-422, CAN, MIL-STD-1553) and ground systems standards (ASME, API, and NASA/AF).Familiarity with data acquisition and control system platforms such as NI, Beckhoff, or similarNice to haves but not required: Experience with CAD tools such as NX and TeamcenterExperience with wire harness design tools such as Zuken Familiarity with a PCB design modeling tool such as Altium DesignerFamiliarity with scripting languages such as Python or MATLAB for data acquisition/recording and analysisFamiliarity with common communication protocols such as Ethernet, CAN, UART, SPI, etcFamiliarity with data acquisition and control system platforms such as NI, Beckhoff, or similarAt 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! To see some of the benefits & perks we offer, please visit here.Hiring Range:$148,000—$222,000 USDWe are an equal opportunity employer and value diversity at our company. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.If you need a reasonable accommodation, please contact us at View email address on click.appcast.io note: Relativity Space does not accept unsolicited resumes, candidate profiles, or referrals from recruitment agencies or search firms. Any unsolicited submission - via email, our website, social media, or directly to an employee - will be deemed the property of Relativity Space, and no fee will be owed absent a current, fully executed agreement with Talent Acquisition that specifically authorizes submissions for the applicable role.