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Test Engineer

Cowboy Space Corporation· Launch & Propulsion Engineering
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Kent, Washington$130k - $190kFull-timePosted 1mo ago

About the role

Test Engineer role focused on designing, building, and operating fluid, mechanical, instrumentation, and control test stands and systems for propulsion components, engines, and stages; responsible for safety, procedures, data analysis, and driving rapid Test & Verification cycles in a high-risk propulsion environment.

Responsibilities

  • Design and build fluid, mechanical, instrumentation, and control systems for component, engine, and stage-level test
  • Write test procOwn P&IDs and take fluid system designs from schematic through procurement, fabrication, and checkout
  • Operate, maintain, and troubleshoot those systems once live, including the electrical and software side
  • Safely operate high-pressure and cryogenic systems: LOX, LNG, high-pressure gas
  • Develop procedures people can follow under pressure, then run them as test conductor
  • Perform hazard analysis and set the safety controls, exclusion zones, and abort criteria for your setups
  • Instrument tests so they answer the question: sensor selection, calibration, DAQ, and sample rates that survive the actual event
  • Reduce and present test data, and drive anomalies to root cause rather than a retest
  • Own your stand project schedules, especially the long-lead items nobody else is watching

Qualifications

  • 4-8 years of relevant test experience: propulsion, fluids, energetics, or industrial systems where a mistake had physical consequences
  • First-principles depth in fluids, thermo, and structures, enough to reason about a system on a whiteboard before opening a tool
  • Experience creating P&IDs and building the system they describe
  • Experience integrating and troubleshooting mechanical and electronic systems together, because that's where the failures live
  • Experience with high-pressure or hazardous environments, and the habits that come with it
  • Experience writing and operating test procedures
  • Enough software to be dangerous: data reduction, control sequences, scripting. Python preferred
  • Self-direction: you'll often be the only person who knows the state of your system
  • Strong writing. A procedure and a test report are both writing jobs
  • Willingness to own large and small tasks alike, with a humble and positive attitude
  • Bachelor's degree in mechanical or aerospace engineering, or similar

Skills

Required:Test planning and executionP&ID creationSystem integration and troubleshootingHigh-pressure / hazardous environmentsProcedural writingData analysis / DAQ
Nice to have:Python scripting

Benefits

  • Equity in Cowboy Space Corp.
  • Medical, dental, and vision insurance for employees and eligible dependents
  • 401(k) retirement savings plan
  • Paid time off
  • 10 paid holidays per calendar year
  • Paid parental leave
  • Relocation assistance if applicable
  • Daily lunch in the office and a fully stocked kitchen with beverages and snacks
Last updated Sep 13, 2026. Interested? Apply on the company site.

About Cowboy Space Corporation

Powering Humanity From the High Frontier

Cowboy Space Corp. is building a power grid in outer space for artificial intelligence. It is an integrated system of satellites and rockets to haul high-performance compute and optical data transmission down from Low Earth Orbit. Earth's energy grid can't run at the pace of AI. We can.

Orbital Data CentersAI compute in spacesolar-powered data centersLow Earth Orbitpower grid in space
Company profileWebsite

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