Data Center MEP Systems Engineer

Crux AI is a newly formed, U.S.

-based integrated AI infrastructure company created to remove the physical and operational constraints on consequential AI ambitions. Crux brings together power, high-density data centers, TPU silicon, networking, orchestration software, and ongoing operations as one integrated system.

Crux is being capitalized to plan every layer together, develop each one to demanding standards, and operate the whole system with efficiency and reliability. That gives hyperscalers, frontier AI labs, sovereign customers, enterprises, and AI-native companies greater freedom to pursue the AI they are here to create.

You will be the owner’s technical authority for the mechanical, electrical, and controls systems behind Crux’s TPU fleet. You will translate Google’s TPU cluster requirements — densities, liquid cooling, power quality, network topology constraints — into facility requirements, and hold every design to them: our own basis of design on greenfield projects, and third-party provided designs.

The role runs the full lifecycle: design reviews and equipment selection, commissioning oversight, and engineering support for sites in operation. You will be one of the first engineers in the building, so you will also help write the standards the rest of the fleet inherits.

• Own the facility basis of design for TPU deployments: power distribution architecture, direct-to-chip liquid cooling systems (CDUs, TCS/FWS loops, water quality), heat rejection, electrical topologies and redundancy, and BMS/EPMS controls.
• Translate TPU pod requirements from Google into rack, row, and room-level facility requirements — and keep design standards current as hardware generations change under you.
• Review third-party designs (powered shells, BTS, colo) for AI-readiness against Crux requirements — density, cooling approach, electrical capacity and quality, expansion headroom — and give the deal team an unambiguous accept/modify/reject with the cost of each gap.
• Run design reviews with AE engineers and consultants; challenge designs on constructability and field labor content, and push scope toward prefabricated and factory-built assemblies (skids, power modules, cooling plants) where they buy schedule and cost.
• Lead equipment selection and vendor technical evaluation for major MEP gear — switch gear, UPS, generators, CDUs, chillers, dry coolers — including factory witness testing and long-lead procurement support.
• Own commissioning from the owner’s side: review Cx plans and scripts, witness Levels 3–5 and IST, drive issue resolution, and hold the line on first-time-right turnover to operations.
• Support operating sites as escalation engineer for facility events — root cause analysis, corrective designs, and retrofits — feeding every lesson back into the design standard.

• You will be fluent in the TPU facility requirements set.
• The first design review cycle will be complete with findings documented.
• AI-readiness review checklist for third-party designs will be drafted and in use on live deals.

• Crux basis of design v1 will be issued for the reference deployment.
• Major equipment selections will be made with technical justification.
• Commissioning oversight will be running on the first project, with ops acceptance criteria integrated.

• First site will be commissioned and operating to design intent (density, PUE, thermal stability at load), with field and operational lessons incorporated.
• Third-party review process will be trusted by the deal team as fast and decisive.

• 10+…