# Fluids Engineer - Propulsion Valves, Ducts, Lines at Cowboy Space

- Company: Cowboy Space
- What the company does: Backed by a16z, Index and NEA.
- Company website: https://www.cowboyspace.com/
- Type: Startups
- Level: Mid level
- Location: Kent, Washington
- Work setup: On-site
- Pay: $130K to $195K base salary per year (USD)
- Posted: 2026-09-15
- Apply by: 2026-10-30
- Apply: https://jobs.ashbyhq.com/cowboyspace/c1fb22e0-a320-4fbd-bd1b-95a3794a49ff
- Page: https://www.1752.vc/careers/jobs/cowboy-space-fluids-engineer-propulsion-valves-ducts-lines/

## About the role

As a Fluids Engineer, you will own a critical fluid system from concept through flight. Depending on your background and team priorities, your assignment will be on Propulsion fluid design (main propulsion valves, throttling valves, Engine fluid routing and manifolding, etc), Vehicle propulsion feed systems (prevalves, propellant feedlines, etc), Vehicle tank pressure controls (vent valves, repress system, etc), or vehicle pneumatic systems (inert gas valves, regulators, fluid routing, and storage for actuation...

## What they're looking for

- Bachelor’s degree in Mechanical Engineering, Aerospace Engineering, Chemical Engineering, or related field
- 3+ years of experience designing fluid system hardware (valves, regulators, tanks and pressure vessels, tubing, fittings, or manifolds) for flight vehicles or high-performance hardware
- Experience taking hardware from concept through build, integration, and test
- Strong fundamentals in fluid mechanics, thermodynamics, heat transfer, structural mechanics, materials, and manufacturing processes
- Experience with fluid system analysis: pressure drop and flow sizing, structural analysis of pressure vessels, or thermal-fluid modeling
- Proficiency with CAD (NX, SolidWorks, CATIA, or Creo) and creating engineering drawings to ASME Y14.5 GD&T standards

Tags: Launch & Propulsion Engineering