relativity

Senior Mechanical Engineer, Vehicle Fluids

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At a Glance

Location
Long Beach, California, United States
Experience
5+ years
Posted
2026-06-01T12:38:29-04:00

Key Requirements

Required Skills

SolidWorks

Domain Knowledge

  • Aerospace
  • Engineering

Requirements

5+ years of experience working with fluids system component design

Direct experience applying engineering fundamentals in thermodynamics, structures, fluid dynamics, and heat transfer

Experience with CFD and FEA tools (ANSYS)

Experience with a commercial CAD package (NX, CREO, Solidworks)

Experience designing fluid system pressure components (fittings, seals, valves, regulators, etc.) and qualifying them for aerospace applications

Experience with FEA (ie.

Compensation & Benefits

$132,000

$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.

If you need a reasonable accommodation, please contact us at

accommodations@relativityspace.com

Responsibilities

In this role, you will be responsible for the hardware design and implementation of that hardware into vehicle fluid systems, ensuring a reliable and efficient operation of our Terran R launch vehicle.

Design and analysis of clean sheet of pressure components for launch vehicle fluid and propulsion systems

Detailed fluid, thermal, and structural analysis of piece parts and assemblies

Development and qualification test planning and execution of internally developed components

Team

The Stage Fluids team is responsible for the design and delivery of 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.