Fluids Subassemblies Manufacturing Engineer I

Company: Relativity Space
Location: Long Beach
Posted on: February 14, 2026

Job Description:

Job Description Job 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 Stage Manufacturing team turns design into reality, owning the build of Terran R's primary structures. This isn't about turning the same bolt every day; it's about building the systems to build the rocket. Engineers and technicians work side by side, with deep collaboration and real-time feedback, to shape how we build better and faster. With a manifest and a launch date, it's up to the team to deliver on Terran R: solving challenges in real time, optimizing for scale, and constantly improving processes. As the vehicle evolves, so will the factory, with opportunities to apply automation, machine learning, and advanced technologies. What we build here sets the blueprint for the future of scaled launch. About the Role: The Tube Manufacturing team is responsible for working alongside the vehicle design and test teams to develop hardware that enables Terran R reusability, working in a variety of processes to manufacture fluids systems hardware for the vehicle. The team is looking for a Manufacturing Engineer to own the following scope: advocate for scalable manufacturing in product design trades and reviews, build flow planning, large-volume part logistics, tooling design, conceptualizing & sourcing, fast-paced issue dispositions, and complex mechanical assembly work planning and execution. Conceptualize, develop, and stand up a cutting-edge bending and welding work cell capable of meeting the demanding requirements of the AeonR and TerranR programs. Drive assembly first build and test efforts through design for manufacturability guidance, assembly sequencing, mBOM development, build and test work order creation, and specification authoring. Implement innovative tooling solutions for both new and existing products, streamlining production to support increased output while reducing operational complexity. Establish and enforce standard practices, troubleshooting guides, and standardized repair procedures, with a key responsibility of reviewing and approving planning documents. Streamline and optimize existing production systems, proactively identifying areas for cost reduction while enhancing overall quality and efficiency. Demonstrate ingenuity and autonomy by introducing novel ideas and implementing them with utmost attention to safety, quality, and reliability, ensuring timely completion of projects. About You: Bachelor of Science degree in aerospace, mechanical, or manufacturing engineering. Minimum of 1 years of experience building and testing hardware in a manufacturing environment (may include internship experience) Experience interfacing with design engineering, manufacturing, and production personnel. Extensive experience managing large scope of ownership. Extensive experience authoring work instructions and/or test procedures for mechanical and/or fluid assemblies. Self-starter that has demonstrated the ability to define and own a process from scratch and roll out that process through clear communication to a diverse team. Nice to haves but not required: Understanding of orbital tube welding (OTW), tube bending, TIG welding, metallic fabrication, assembly procedures, and tooling design. Strong understanding GD&T and drafting principles. Working knowledge of typical manufacturing execution systems and quality management systems. Working knowledge of rocket subsystems including structures, mechanisms, high pressure gas systems, and/or avionics. 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! To see some of the benefits & perks we offer, please visit here. Hiring Range: $97,000—$124,300 USD 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. If you need a reasonable accommodation, please contact us at accommodations@relativityspace.com.

Keywords: Relativity Space, Pasadena , Fluids Subassemblies Manufacturing Engineer I, Engineering , Long Beach, California