End-to-End Rocket Injector Engineer

Cowboy Space Corp.; Kent (WA); On-site; USD 130,000 - 180,000; Full time

Benefits offered by this job

Equity in Cowboy Space Corp.

Medical, dental, vision insurance

401(k) retirement savings plan

Paid time off

10 paid holidays per year

Paid parental leave

Relocation assistance if applicable

Daily lunch in the office

Job summary

Cowboy Space Corp. is seeking an Injector Design and Development Engineer to own rocket injector design end to end—from concept to test. You will pair first-principles analysis with hands-on manufacturing and testing to accelerate cycles.

This onsite role in Kent, WA requires a builder mindset and a track record of turning analysis into flight-ready hardware. The ideal candidate brings strong fundamentals in thermodynamics, fluid dynamics, and structural mechanics, plus 5+ years in mechanical

Qualifications

• Bachelor's degree in Aerospace, Mechanical, Space Systems, or an equivalent Engineering or Applied Physics degree.
• Strong command of first-principles thermodynamics, fluid dynamics, and structural mechanics.
• 5+ years in mechanical design for manufacturing and rapid prototyping.
• Hands-on ownership of the rocket engine injector lifecycle.

Responsibilities

• Own injector hardware end to end, from first-principles sizing through flight operation.
• Perform physics-based architecture trades leading to design and analysis of TCA components.
• Select manufacturing methods and lead the build, iterating on the design across the lifecycle.
• Plan and execute test campaigns, from component tests through full-engine hotfire.
• Analyze hotfire data and lead component redesigns to meet mission requirements.
• Collaborate with vehicle and test-stand engineers to ensure engine compatibility.

Skills

First-principles thermodynamics

Fluid dynamics

Structural mechanics

Mechanical design for manufacturing

Rocket injector lifecycle ownership

Rocket engine hotfire testing

Education

Bachelor's degree in Aerospace Engineering or equivalent

Advanced degree in a relevant engineering discipline

Tools

Ansys Mechanical

Fluent

Thermal Desktop

Job description

Cowboy Space Corp. is seeking an Injector Design and Development Engineer to own rocket injector design end to end—from concept to test. You will pair first-principles analysis with hands-on manufacturing and testing to accelerate cycles.

This onsite role in Kent, WA requires a builder mindset and a track record of turning analysis into flight-ready hardware. The ideal candidate brings strong fundamentals in thermodynamics, fluid dynamics, and structural mechanics, plus 5+ years in mechanical