Weld Engineer I

Relativity Space
Long Beach, CaliforniaPosted 24 February 2026

Job Description

<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 Materials and NDE (Non-Destructive Evaluation) team plays a central role in enabling Terran R to fly, re-fly, and scale: developing, characterizing, and inspecting materials and processes across all parts of the vehicle. From welding and additive manufacturing to advanced composites, the team works at the intersection of innovation and execution, balancing performance and reliability with cost, quality, and schedule. As we move toward first flight and beyond, the challenges become more exciting, offering opportunities to shape how we design and develop for re-use. With ownership across products, systems, and disciplines, engineers gain broad exposure and drive key decisions across design, manufacturing, and operations.</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> <ul> <li style="font-family: arial, helvetica, sans-serif; font-size: 10pt;">Collaborate with cross-functional teams (design, manufacturing and quality) to develop and optimize fusion welding processes and equipment/tools for<span data-contrast="auto"> Relativit</span><span data-contrast="auto">y’s</span> <span data-contrast="auto">Aeon</span><span data-contrast="auto">-R and Aeon-V </span><span data-contrast="auto">e</span><span data-contrast="auto">ngine components<u> </u></span></li> <li><span data-contrast="auto"> Responsible for <span data-contrast="auto">development and qualification of weld joint designs and process parameters</span> <span data-contrast="auto">in accordance with AWS D17.1 </span><span data-contrast="auto">for fracture critical hardware</span></span></li> <li><span data-contrast="auto"> Identify and <span data-contrast="auto">implement</span> <span data-contrast="auto">new</span><span data-contrast="auto"> welding capabilities with a focus on automat</span><span data-contrast="auto">ion and process control</span><span data-contrast="auto"> of</span> <span data-contrast="auto">Robotic LBW</span><span data-contrast="auto"> and GTAW</span></span></li> <li><span data-contrast="auto"> Work directly with manufacturing teams to provide technical support for welding operations<span data-contrast="auto">,</span> pro<span data-contrast="auto">cess</span> ... (truncated, view full listing at source)