The Thermofluids R&D TeamExamples of key problems the team is working on- Reject more than 10 gigawatts of heat, starting now. Fluidstack is targeting 10 GW of compute in 2027 and 30 GW the year after. Every watt of it becomes heat that has to go somewhere, and no cooling team has ever been asked to open at that number rather than grow into it.
- Design and build the machines, because nobody can supply them. The merchant compressor market cannot deliver at this rate, and the vendor base behind today's chillers will not scale to gigawatts. We are taking compressor and chiller design in house, working on machine architectures nobody sells today, and going from blank sheet to production faster than this industry thinks is possible.
- Own every thermofluids problem behind the fleet, not just the chiller. Working fluid and cycle architecture, heat exchangers at a scale that dominates the cost of the plant, two-phase heat transfer at the chip, and thermal energy storage. All of it is open, and whatever this team lands gets built thousands of times.
Role Scope- 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.
What We're Looking ForThe below is a starting point. We always make space for exceptional people, so if you don't fit this role exactly, tell us where you would.- 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.
- You've carried a failure investigation to a root cause that changed the hardware, rather than to a plausible story that closed the paperwork.
- Bonus: Propulsion and engine test (hot fire, spin pit, green run). Rotating machinery test (compressors, turbines, motor test benches). High-pressure gas loops and pressure-rated test rigs. Data acquisition and rig control (LabVIEW, NI, PLC-based stands). Thermal and refrigeration performance testing (COP mapping, calorimetry).
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