Spacecraft Active-Cooling Mechanical Engineer

Cowboy Space Corp.; Seattle (WA); On-site; USD 100,000 - 300,000; Full time

Benefits offered by this job

Equity in Cowboy Space Corp.

Medical, dental, and vision insurance

401(k) retirement plan

Paid time off

10 paid holidays per year

Paid parental leave

Relocation assistance

Office lunch in office

Job summary

Cowboy Space Corp. is seeking a Mechanical Engineer – Active Cooling to own the liquid cooling loop for on-orbit GPU compute hardware.

You will design, size, and integrate pumps, valves, accumulators, and heat exchangers, and own end-to-end hardware development from concept through ground tests and on-orbit operation. You will collaborate with thermal, power, structures, avionics, propulsion, and software teams to deliver a robust cooling solution, with hands-on testing and fast iteration in a

Qualifications

• BS or MS in Mechanical Engineering, Aerospace Engineering, or a related field.
• 3+ years of experience designing or analyzing fluid systems and/or mechanical hardware in aerospace, automotive, energy, data-center cooling, or other high-performance environments.
• Strong fluids fundamentals: compressible/incompressible flow, thermodynamics, heat transfer, and pressure systems.
• Hands-on experience with fluid components including pumps, valves, regulators, tubing, and instrumentation.
• Experience taking hardware from concept through build and test, with hands-on integration and test experience.

Responsibilities

• Own the design of the spacecraft liquid cooling loop for GPU compute hardware from concept through flight, including cold plates, pumps, valves, accumulators, heat exchangers, tubing, fittings, and instrumentation.
• Perform pressure-drop, flow, and thermal-fluid analyses to size the loop and predict system behavior across the full mission profile, balancing heat rejection, pump power, mass, and reliability.
• Design the mechanical packaging, structures, mounts, and mechanisms that house and integrate the cooling loop, and couple it to radiators and the broader thermal control system.
• Design, build, and operate ground testbeds and dev rigs to characterize components, validate the loop, and de-risk the flight design ahead of qualification.
• Develop and execute proof-pressure, leak, flow, thermal-vacuum, and qualification/acceptance test programs to verify flight-worthiness.

Skills

Fluid systems

Mechanical design

CAD (NX/SolidWorks)

Fast-paced hardware development

Education

BS/MS in Mechanical or Aerospace Eng

Tools

NX

SolidWorks

Job description

Cowboy Space Corp. is seeking a Mechanical Engineer – Active Cooling to own the liquid cooling loop for on-orbit GPU compute hardware.

You will design, size, and integrate pumps, valves, accumulators, and heat exchangers, and own end-to-end hardware development from concept through ground tests and on-orbit operation. You will collaborate with thermal, power, structures, avionics, propulsion, and software teams to deliver a robust cooling solution, with hands-on testing and fast iteration in a