NoneOnsite · Aerospace

Senior Avionics Test Systems Engineer, Ground Systems

Relativity Space · Long Beach, California, United States

Mission Brief

Core Responsibilities

<div class="content-intro"><p><span style="font-family: arial, helvetica, sans-serif; font-size: 10pt;">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.</span></p> <p><span style="font-family: arial, helvetica, sans-serif; font-size: 10pt;">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 </span><span style="font-family: arial, helvetica, sans-serif; font-size: 10pt;">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.</span></p></div><p><span style="font-family: arial, helvetica, sans-serif; font-size: 10pt;"><strong><span data-contrast="none">About the Team: </span></strong></span></p> <p>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. <br><br>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.</p> <p><span style="font-family: arial, helvetica, sans-serif; font-size: 10pt;"><strong><span data-contrast="none">About the Role:</span></strong></span></p> <p>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.</p> <p>As an Sr Avionics Test Systems Engineer, Ground Systems you will:</p> <ul> <li>Lead design, development, build, and integrate critical ground systems that support engine test, vehicle integration, and launch operations</li> <li>Collaborate cross-functionally with vehicle, propulsion, avionics, software, test, and operations teams to deliver robust, scalable systems on tight timelines</li> <li>Oversee fabrication, bring-up, and validation of test systems, including electrical testing, calibration, and functional checks</li> <li>Author interface control documents (ICDs) and engineering release drawings to ensure tight alignment between electrical ground support equipment and flight/avionics hardware</li> <li>Work closely with safety, operations, and launch teams to ensure systems are compliant and operable under high-stakes conditions</li> </ul> <p><span style="font-family: arial, helvetica, sans-serif; font-size: 10pt;"><strong><span data-contrast="none">About You:</span></strong></span></p> <ul> <li><span style="font-family: arial, helvetica, sans-serif; font-size: 10pt;"><span data-contrast="none">Undergraduate or graduate degree (BS/MS/PhD) in Electrical Engineering, Computer Engineering, Mechanical Engineering, Aerospace Engineering, or a related field</span></span></li> <li><span style="font-family: arial, helvetica, sans-serif; font-size: 10pt;"><span data-contrast="none">5+ years of hands-on experience designing and deploying test systems or electrical integration systems in aerospace or high-reliability environments</span></span></li> <li><span style="font-family: arial, helvetica, sans-serif; font-size: 10pt;"><span data-contrast="none">Strong knowledge of electrical signal integrity, grounding schemes, shielding, and power systems</span></span></li> <li><span style="font-family: arial, helvetica, sans-serif; font-size: 10pt;"><span data-contrast="none">Hands-on experience designing, building, and commissioning electromechanical ground systems</span></span></li> <li><span style="font-family: arial, helvetica, sans-serif; font-size: 10pt;"><span data-contrast="none">Familiarity with common communication protocols (e.g., Ethernet, RS-422, CAN, MIL-STD-1553) and ground systems standards (ASME, API, and NASA/AF).</span></span></li> <li><span style="font-family: arial, helvetica, sans-serif; font-size: 10pt;"><span data-contrast="none">Familiarity with data acquisition and control system platforms such as NI, Beckhoff, or similar</span></span></li> </ul> <p><span style="font-family: arial, helvetica, sans-serif; font-size: 10pt;"><strong><span data-contrast="none">Nice to haves but not required: </span></strong><span data-ccp-props="{"134233117":true,"134233118":true,"201341983":0,"335559740":240}"> </span></span></p> <ul> <li>Experience with CAD tools such as NX and Teamcenter</li> <li>Experience with wire harness design tools such as Zuken </li> <li>Familiarity with a PCB design modeling tool such as Altium Designer</li> <li>Familiarity with scripting languages such as Python or MATLAB for data acquisition/recording and analysis</li> <li>Familiarity with common communication protocols such as Ethernet, CAN, UART, SPI, etc</li> <li>Familiarity with data acquisition and control system platforms such as NI, Beckhoff, or similar</li> </ul><div class="content-pay-transparency"><div class="pay-input"><div class="description"><p><span style="font-size: 14px;">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.</span><br><br><span style="font-size: 14px;">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 <a href="https://px.sequoia.com/relativityspace">here.</a></span></p></div><div class="title">Hiring Range:</div><div class="pay-range"><span>$148,000</span><span class="divider">—</span><span>$222,000 USD</span></div></div></div><div class="content-conclusion"><p><span style="font-family: arial, helvetica, sans-serif; font-size: 10pt;"><strong>We 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.</strong></span></p> <p><em><span style="font-family: arial, helvetica, sans-serif; font-size: 10pt;"><strong>If you need a reasonable accommodation, please contact us at <a href="mailto:accommodations@relativityspace.com">accommodations@relativityspace.com</a>.</strong></span></em></p> <p><em><strong><span style="font-size: 10pt;">Please 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.</span></strong></em></p></div>

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