MEP Systems & Liquid Cooling

Job Title : Principal Advisor, Liquid Cooling & MEP Systems

Location : Remote 

Duration  : Long Term

Use the below JD.

·       The Principal Advisor, Liquid Cooling & MEP Systems brings deep, hands-on technical expertise in direct-to-chip and rear-door liquid cooling — CDUs, coolant distribution, manifolds, and controls integration — to WWT's AI Factory engagements. This is a technical advisory role, not a self-perform or engineer-of-record role: you review and advise on liquid-cooling architecture, evaluate partner and OEM deliverables for soundness, and size cooling systems against real AI-density heat loads, working in close partnership with the Principal MEP Advisor and the practice's delivery partners. This role is accountable for:

·       Reviewing and advising on liquid-cooling architecture — CDUs, coolant distribution, manifolds, and controls — across client and partner MEP designs, flagging risks and gaps before they reach the field.

·       Sizing and validating facility water and heat-rejection strategy against rack-level heat load for AI-density deployments.

·       Evaluating partner and OEM liquid-cooling deliverables — CDU commissioning, coolant chemistry, flow balancing, leak detection — for technical soundness. You will work directly alongside the Principal MEP Advisor & Design Authority, extending the practice's technical bench on the one skill set every AI Factory build depends on and the fewest people in the market can credibly deliver.

Key Responsibilities

·       Provide deep technical expertise on direct-to-chip and rear-door liquid cooling systems across client and partner MEP designs.

·       Advise on PUE/WUE efficiency targets at AI density and how those targets are proven during commissioning.

·       Maintain currency with NVIDIA rack-scale platforms (GB200/GB300/NVL72-class) and the liquid-cooling OEM ecosystem.

·       Contribute to survey standards, deliverable templates, and training materials specific to liquid cooling as the practice scales.

·       Qualify and provide technical oversight of liquid-cooling trade partners and CDU manufacturers. Qualifications and Requirements

If your experience doesn't match every preferred qualification below but you know this work, we encourage you to apply.

Required

·       A minimum of 7 years' progressive experience in mechanical/MEP engineering, with direct hands-on liquid cooling deployment experience.

·       Direct, hands-on experience with direct-to-chip and rear-door liquid cooling systems at data center scale — CDUs, coolant distribution, manifolds.

·       Experience sizing and validating cooling systems for high-density (60–150 kW/rack and beyond) environments.

·       The ability to read, review, and red-line liquid-cooling schematics and designs and be right — not just conversant.

·       Bachelor's degree in Mechanical Engineering, Electrical Engineering, or a related field, or equivalent professional experience.

Preferred

·       NVIDIA AI Factory / rack-scale platform experience (GB200, GB300, NVL72-class).

·       Experience with CFD thermal modeling, power-system studies, and staged capacity analysis.

·       DCD Cooling Professional (Uptime Institute), NVIDIA NCA-AIIO, or manufacturer CDU / direct-liquid-cooling training.

·       Experience qualifying and overseeing liquid-cooling trade partners and CDU manufacturers.

Leadership & Interpersonal

·       Strong systems-level thinking: connects rack-level heat load to the full facility thermal chain.

·       Ability to communicate technical risk clearly to both engineering partners and executive stakeholders.

·       Collaborative working style with the Principal MEP Advisor, delivery partners, and OEMs.

Differentiating Competencies

·       Candidates who thrive in this role typically demonstrate the following beyond baseline qualifications:

·       Scarce-Skill Specialists — Genuinely deep in liquid cooling, not adjacent HVAC experience stretched to fit.

·       Systems Thinkers — Reason from rack-level heat load all the way to facility heat rejection, not just component specs.

·       Risk Spotters — Can look at a cooling schematic and see what's wrong before it becomes a change order.

·       Collaborative Partners — Comfortable working second-chair to the Principal MEP Advisor while owning a technical domain outright.