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# Fluid Systems Engineer

- **Company:** Relativity Space, Inc.
- **Location:** Long Beach, CA, United States
- **Experience:** Expert
- **Salary:** $132,000.0 - $198,000.0
- **Contract:** Permanent contract
- **Skills:** Data Analysis, Automation of Tests, Computer Programming, Hardware Design, Systems Analysis, Python (Programming Language), Scientific Computating, Systems Architecture
- **Published:** October 12, 2026
- **Apply:** https://www.juju.com/job/15_d4738c4e1

## About the Role

* Bachelor's degree (Mechanical Engineering or relevant)
 * 4+ years of experience working with fluids systems
 * Experience applying engineering fundamentals in system design, thermodynamics, fluid dynamics, and heat transfer
 * Experience with one or more fluid or thermal modeling tools for internal compressible and incompressible analysis
 * Proficiency in Python or a similar programing language for scientific computing and automated test/simulation data analysis

Nice to haves, but not required:

 * Experience with launch vehicles and spacecraft

## Description

As a Vehicle Fluid Systems Engineer, you will be responsible for the fluid system architecture and function for a given vehicle fluid subsystem. You will apply expertise in system architecture, systems operations, and fluid thermodynamics applications to guide hardware design, system analysis, manufacturing, validation and operations.

 * Own the vehicle fluid subsystem architecture and schematics, including system control scheme, system and component selection and sizing
 * Conducting fluid and thermal analyses, including system sizing and characterization using a variety of base analytical methods (1D steady-state, fluid networks, etc.)
 * Leading and participating in system and hardware design and manufacturing reviews
 * Defining and supporting test objectives and test campaigns to validate system design, system models and overall system performance including supporting integrated vehicle testing and launch