Pipefitter II

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.

The Stennis Test team designs, builds, and operates Relativity’s propulsion and stage test stands. Team members are hands-on with large-scale, complex systems including fully integrated engines and stage assemblies, pushing hardware to the limits and directly contributing to flight readiness. The work is fast-paced and highly operational, ideal for those with backgrounds in aviation, automotive, manufacturing, offshore operations, industrial systems, construction, or adjacent industries.

You’ll work in a close-knit, dynamic environment where collaboration between technicians, operators, and engineers is not only encouraged, but expected. As the company scales, the Stennis Test team becomes even more critical to unlocking our next phase of growth: proving out full-stage systems and paving the way for routine, reliable flights of Terran R.

As a Pipefitter, you will perform functions in building of new test stand facilities and modifying existing test stands to support site testing milestones.

• Reads and interprets blueprints and specifications to determine pipe layouts, materials, and installation procedures
• Fabricates and installs piping systems to include cutting, threading, and welding pipes to construct systems for transporting liquids, gases, or cryogenic fluids
• Troubleshooting and maintenance of fluid system piping and hardware
• Proactively perform work according to procedures, specifications, and work instructions
• Monitor and maintain an inventory of consumables, tooling, and equipment
• Collaborate closely with cross functional teams to execute various projects

• 4+ years of experience working as a Pipefitter
• Must be able to lift a minimum of 50 lbs unassisted, stand for extended periods, and use industry standard PPE
• Ability to read and understand blueprints, technical documents, and/or engineering drawings
• Experience using a variety of welding equipment (TIG, MIG, etc.)
• Experience and ability to perform part layout and fit-up
• This position will require occasional night shifts and possible travel

• Advanced knowledge of fluid systems and their components
• Advanced knowledge engineering ISO prints
• Advanced knowledge and ability using welding systems and their components

Successful candidates must clear a background check administered by the US government to obtain clearance for on-site work at our government partner location in Stennis, Mississippi.

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.

• competitive salary and equity
• a generous PTO and sick leave policy
• parental leave
• an annual learning and development stipend
• and more!

$27.20—$40.80 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.