Staff Vehicle Fluid Systems Engineer (Product)

7+ years of experience working with complex fluids systems

Strong background in fluid system architecture, operations and application of engineering fundamentals in system design, thermodynamics, fluid dynamics, and heat transfer

Proficient with one or more fluid or thermal modeling tools for internal compressible and incompressible fluid analysis

Experience using programming languages such as Matlab, Python, or C++ for data analysis or modeling

Direct experience designing or operating launch vehicle or spacecraft fluid or propulsion systems

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

$164,000

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$225,500 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.

If you need a reasonable accommodation, please contact us at

accommodations@relativityspace.com

As a Vehicle Fluids Product Responsible Engineer, you will be responsible for the fluid system architecture and function for a given vehicle product line.

You will apply deep expertise in system architecture, complex systems operations, and fluid thermodynamics applications to guide hardware design, system analysis, manufacturing, validation and operations.

Own the integrated stage-level fluid architecture and schematics, ensuring seamless functionality across all propellant, pressurant, and pneumatic subsystems

Lead cross-functional interface definitions and negotiations with partner vehicle teams (Propulsion/Engine, Structures, GNC, and Avionics) to ensure flawless system integration

Assist with sizing and fluid 1D steady-state thermofluids analysis at both the system and component levels when necessary to

Define development, qualification, and acceptance testing scopes to buy down technical risk prior to vehicle-level integrated testing

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.