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Power Electronics Engineer, Thermofluids

Fluidstack· Development
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Hybrid (Austin, TX), Hybrid (San Francisco, CA), Hybrid (Los Angeles; CA)$210k - $260k + equityFull-timePosted 1mo ago

About the role

Power Electronics Engineer focusing on thermofluids for Fluidstack’s high-performance compute infrastructure, owning electrical design of the machine’s power path and ensuring safety, EMC, and integration with high-speed, high-power systems.

Responsibilities

  • Own the electrical design of the machine’s power path: the DC bus, the inverter, the motor drive, and the amplifiers driving the magnetic bearings around the rotor.
  • Specify and integrate the drive for a high-speed hermetic motor, including the switching, thermal, bearing-current and insulation questions that follow from running a machine fast.
  • Design the power and protection scheme for the test benches and the load bank, so a machine can be run to full rating and its output absorbed or regenerated.
  • Take the electrical scope through EMC, harmonics and arc flash to an installation that is safe to work on and safe to sign off.
  • Own electrical safety in the test cell, including the procedures the technicians and test engineers work to around live buses and stored energy.

Qualifications

  • You’ve designed a high-power converter or motor drive that got built, and you were there the first time it drove a real load.
  • You’ve integrated a drive with a motor somebody else designed, and dealt with what the drive then did to the machine and to everything sharing the bus.
  • You’ve chased an EMC, harmonic or bearing-current problem to its actual cause instead of adding a filter and hoping.
  • You’ve written electrical safe work practices and then enforced them on people who found them inconvenient.
  • You’ve powered up a test cell or a first-of-a-kind installation, and you were the one who decided it was safe to close the breaker.

Skills

Required:High-power converter designMotor drive integrationEMC, harmonics, arc flash analysisElectrical safety and safe work practices

Benefits

  • Equity (as part of compensation)
  • Base salary and total compensation consideration per US postings
  • Benefits (as part of compensation package)
  • Total compensation may include equity in the form of restricted stock units.
Last updated Sep 22, 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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