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Test Engineer, Thermofluids

Fluidstack· Development
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Austin, TX$210k - $260kFull-timePosted 1mo ago

About the role

Job posting for a Test Engineer in the Thermofluids R&D Team at Fluidstack, focused on developing and validating test programs for compressor and thermofluid systems to enable high-scale compute infrastructure for AI.

Responsibilities

  • Own the test program that takes the compressor from first spin on the stand to a validated performance map the design team can build on.
  • Specify and stand up the test cells from an empty bay: motor test bench, high-pressure gas loop, load bank, and every instrument behind them.
  • Define the measurement chain and the uncertainty budget, so a claimed isentropic efficiency or COP survives scrutiny from outside this company.
  • Write the test plans, interlocks and abort criteria for a machine running at speeds and pressures where a failure is energetic.
  • Turn test data into design changes on a weekly cadence, sitting inside the design loop rather than reporting into it.

Qualifications

  • You’ve commissioned a test stand from a bare bay: instrumentation, calibration, shakedown, first article.
  • You’ve taken a machine to failure deliberately and had it instrumented well enough to know exactly why it failed.
  • You’ve owned an uncertainty budget and could tell someone what your measurement was actually worth.
  • You’ve written interlock and abort logic that kept people safe around stored energy, high pressure or high speed.
  • You’ve disagreed with a design team about what the data showed, and the data won.

Skills

Required:Test program ownershipTest cell setupMeasurement chain designInterlocks and abort criteriaData-driven design iteration

Benefits

  • Total compensation may include equity in the form of restricted stock units.
Last updated Oct 6, 2026. Interested? Apply on the company site.
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About Fluidstack

Fluidstack builds civilization-scale infrastructure for AI

Fluidstack builds civilization-scale infrastructure for AI, delivering gigawatts of compute in 6 months. We're leading the deployment of Anthropic's $50B compute build out.

AI infrastructurecompute centershardwaresoftwarepowerdata centersAnthropicfrontier compute
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