Pipefitter III

Relativity Space; Mississippi; On-site; USD 45,736 - 68,604; Full time

Benefits offered by this job

Generous PTO

Sick leave

Parental leave

Learning and development stipend

Job summary

Relativity Space is seeking a Pipefitter III to build and modify test stands for Terran R at our Stennis, Mississippi site. You will contribute to the Stennis Test team, working hands-on with large-scale systems and collaborating with technicians, operators, and engineers to push hardware toward flight readiness.

Ideal candidates bring 4+ years as a pipefitter, ability to read blueprints, welding experience (TIG/MIG), and a readiness for night shifts or travel.

Qualifications

• 4+ years of experience as a Pipefitter.
• Must be able to lift 50 lbs unassisted and stand for extended periods with PPE.
• Ability to read blueprints and technical drawings.
• Experience with TIG/MIG welding equipment.
• Occasional night shifts and travel may be required.

Responsibilities

• Read and interpret blueprints and specifications to determine pipe layouts.
• Fabricate and install piping systems including cutting, threading, and welding pipes.
• Troubleshoot and maintain fluid piping hardware.
• Follow procedures, specifications, and work instructions.
• Maintain inventory of consumables, tooling, and equipment.
• Collaborate with cross-functional teams to execute projects.

Skills

Blueprint reading

Team collaboration

Physical stamina

Tools

Welding equipment (TIG, MIG)

Job description

At Relativity Space, we’re building rockets to serve today’s needs and tomorrow’s breakthroughs. OurTerran R vehicle will deliver customer payloads to orbit, meeting the growing demand for launchcapacity. But that’s just the start. Achieving commercial success with Terran R will unlock newopportunities to advance science, exploration, and innovation, pioneering progress that reaches beyondthe 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. Nowis a unique moment in time where it’s early enough to leave your mark on the product, the process, andthe culture, but far enough along that Terran R is tangible and picking up momentum. The mostmeaningful work of your career is waiting. Join us.

About the Team:

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.

About the Role:

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

Responsibilities:

• Readsandinterpretsblueprints and specifications todeterminepipe layouts, materials, and installation procedures
• Fabricates andinstallspipingsystemsto includecutting,threading,andweldingpipes to construct systems for transporting liquids, gases, orcryogenicfluids
• Troubleshootingand maintenance of fluid system piping and hardware
• Proactively perform work according to procedures, specifications, and work instructions
• Monitor andmaintainan inventory of consumables, tooling, and equipment
• Collaborateclosely withcrossfunctionalteamsto execute various projects

About You:

• 4+ years of experience working as aPipefitter
• Must be able to lift a minimum of 50lbsunassisted, stand for extended periods,anduse industrystandardPPE
• 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 performpartlayout and fit-up
• This position will require occasional night shifts andpossible travel

Nice to haves but not required:

• Advanced knowledge of fluid systems and their components
• Advanced knowledge engineering ISO prints
• Advanced knowledgeandabilityusingwelding 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.

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:

$33.20 — $49.80 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.

If you need a reasonable accommodation, please contact us at [e-mail].