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Mechanical Engineer, R&D

Fluidstack· Development
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Austin, TX, New York, NY, San Francisco, CA, Los Angeles; CA, Seattle, WA$208k - $263kFull-timePosted 3mo ago

About the role

Mechanical Engineer, R&D role focusing on designing and validating mechanical and HVAC systems for Fluidstack's data-center infrastructure, including cooling distribution, piping, heat rejection, and vendor package development for modular units; involves end-to-end calculations, testing, and support for prototypes and first builds.

Responsibilities

  • Engineer the mechanical systems in the reference design: cooling distribution, piping, and heat rejection for modular units.
  • Run the calcs: hydraulics, heat transfer, and equipment sizing owned end to end.
  • Develop vendor packages: CDUs, pumps, and dry coolers specified, evaluated, and integrated.
  • Support prototypes and first builds: test data reconciled against design.

Qualifications

  • You've designed mechanical or HVAC systems for data centers or industrial plants.
  • Your hydraulic and thermal calcs are yours, not the vendor's.
  • You've specified and integrated major cooling equipment.
  • You've validated designs against commissioning or test data.
  • You draw clean P&IDs and mean them.

Skills

Required:Mechanical designHydraulicsHeat transferP&ID drafting

Benefits

  • Total compensation may also include equity in the form of restricted stock units.
  • Base pay range provided with equity for full-time roles, benefits, and applicable plans.
Last updated Sep 15, 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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