Senior COPV Engineer
Relativity SpaceLong Beach, California$104k – $143kPosted 7 April 2026
Tech Stack
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 Fluids team designs and delivers the propellant, pressurant, pneumatics, and other fluid systems that turn structures into functioning rockets. The team has full ownership across design, production, test, and flight, maintaining a holistic view of Terran R, focused not on isolated parts but integrated functionality. Working on-site at the factory means you’re never far from the hardware, enabling rapid iteration and tight feedback loops across design and manufacturing. You won’t just be handed requirements: you’ll be expected to ask the right questions, collaborate with partners across the company, and ultimately find the best solutions for Terran R.
About the Role:
You will be a part of developing the architecture for the upcoming Terran R vehicle and will be responsible for charting the company’s path for gas storage on a reusable rocket- both near-term and long-term.
Here are some examples of projects you could be working on:
Partnering with third-party vendors in the design and analysis of gas storage COPVs
Working with other thermo-fluid engineers on vehicle gas system design and operation
Establishing test campaigns for the qualification and acceptance of COPVs
Performing tests and reviewing data
Supporting integration COPVs on the rocket
Selecting, vetting, and managing vendors
Performing trade studies to improve gas storage solutions for the near future vehicles
Assessing long-term COPV design and manufacturing plans
About You:
Undergraduate degree in engineering or a technical discipline
5+ years of relevant technical experience
Experience applying pressure vessel engineering fundamentals
Experience applying knowledge of fluid and mechanical system design and operation
Nice to haves, but not required:
Experience working with COPVs or other composite structures
Experience in a creative and fast-paced development environment, working with autonomy
Experience with CAD
Experience with launch vehicle systems
Hiring Ranges and Leveling:
Engineer II: $104,000 - $143,000
Senior Engineer: $148,500 - $181,500
Staff Engineer: $164,000 - $225,500
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:
$148,500
$181,500 USD
We are an equal opportunity employer and value diversity at ... (truncated, view full listing at source)
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