Senior COPV Engineer

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. Achieving commercial success with Terran R will unlock new opportunities to advance science, exploration, and innovation, pioneering progress that reaches beyond the known.

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 on 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.

You will be 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.

• 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 qualification and acceptance of COPVs
• Performing tests and reviewing data
• Supporting integration of 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

• Undergraduate degree in engineering or 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

• 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

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!

Hiring Range: $142,000 – $181,500 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.