Space Propulsion Fluids Engineer: Flight-Ready Systems

Cowboy Space Corp.; Kent (WA); On-site; USD 120,000 - 150,000; Full time

Benefits offered by this job

Equity

Health insurance

401(k)

Paid time off

10 holidays per year

Parental leave

Relocation assistance

Daily lunch

Job summary

Cowboy Space Corp. in the United States is seeking a Fluid Systems Hardware Engineer to design valves, tanks, and fluid routing for propulsion, fluids, and thermal management.

You will deliver hardware across the full lifecycle, from concept through build and flight, ensuring performance and reliability in demanding launch environments. You will perform hydraulic/thermal analysis, select materials, generate drawings, and support testing and integration with manufacturing teams to drive rapid

Qualifications

• Bachelor’s degree in Mechanical, Aerospace, Chemical, or related engineering.
• 3+ years designing fluid system hardware for flight or high-performance applications.
• Experience with fluid system analysis and structural analysis of pressure vessels, or thermal-fluid modeling.
• Hands-on experience taking hardware from design through build and test.
• Proficiency with CAD tools (NX, CATIA, or SolidWorks) for detailed part design.

Responsibilities

• Design valves for propellant, pressurant, and thermal fluid systems in propulsion/launch vehicles.
• Develop fluid storage hardware including tanks, pressure vessels, and accumulators.
• Design fluid routing architecture: tubing, manifolds, fittings, and quick-disconnects.
• Own fluid subsystem layout and integration across propulsion, thermal, and pneumatic systems.
• Perform hydraulic and pneumatic analysis to size components and verify performance.
• Conduct structural analysis (FEA/hand calcs) and validate with test data.
• Select materials compatible with propellants and operating environments (cryogenic, high-pressure, corrosive).
• Generate detailed drawings, specifications, and interface control documents.
• Support component- and system-level test campaigns (proof, burst, flow, leak, cycle life).
• Collaborate with manufacturing to resolve build issues and improve producibility.
• Support vehicle integration and ground system interfaces.
• Contribute to anomaly investigations, post-flight inspection, and design improvements.

Skills

Fluid system design

Propulsion fluid systems

Structural analysis (FEA)

Hardware prototyping

CAD proficiency

Education

Bachelor’s degree in Mechanical, Aerospace, Chemical, or related engineering

Tools

NX / CATIA / SolidWorks

Job description

Cowboy Space Corp. in the United States is seeking a Fluid Systems Hardware Engineer to design valves, tanks, and fluid routing for propulsion, fluids, and thermal management.

You will deliver hardware across the full lifecycle, from concept through build and flight, ensuring performance and reliability in demanding launch environments. You will perform hydraulic/thermal analysis, select materials, generate drawings, and support testing and integration with manufacturing teams to drive rapid