Senior Data Center MEP Engineer - Liquid-Cooling Leader

Millennium; New York (NY); On-site; USD 175,000 - 250,000; Full time

Benefits offered by this job

Comprehensive benefits package

Discretionary performance bonus

Job summary

Millennium seeks a hands-on Data Center MEP Engineer in New York to lead end-to-end design, commissioning and lifecycle management of liquid cooling and critical mechanical systems.

You will develop hydraulic models, perform thermal simulations, and oversee electrical infrastructure, including UPS, PDUs and generators, collaborating with global teams and traveling up to 30% as needed.

Qualifications

• 5+ years of hands-on data center MEP engineering experience in enterprise, hyperscale, or colocation environments.
• Demonstrated experience designing and commissioning liquid cooling technology (direct liquid cooling, cold-plate, rear-door heat exchanger, or immersion).
• Strong mechanical engineering knowledge of chilled water, glycol, and refrigerant systems including pump sizing, piping, hydraulics, and leakage detection.
• Working knowledge of critical electrical systems including UPS, generators, switchgear, and PDUs.
• Experience delivering MEP capital projects from design through commissioning and handoff.
• Familiarity with ASHRAE TC 9.9, Uptime Institute, EN 50600, NFPA 70, IEC 60364 safety standards.

Responsibilities

• Lead end-to-end design, commissioning, operation and continuous improvement of liquid cooling infrastructure (direct cooling, cold-plate, rear-door heat exchangers).
• Develop hydraulic models, heat-load calculations and thermal simulations for high-density racks.
• Define and maintain cooling distribution architecture including manifolds and leak detection.
• Oversee design and lifecycle management of critical mechanical systems (chillers, cooling towers, CRAH/CRAC units, AHUs).
• Support electrical infrastructure design, including UPS, PDUs, switchgear, generators and transfer switches.
• Act as Owner’s Engineer for MEP capital projects (RFIs, submittals, change orders, schedules, costs).
• Maintain documentation (MOPs, SOPs, EOPs, standards) and support risk assessments.
• Monitor performance, push efficiency, support audits and report key metrics to leadership.

Skills

Data center MEP engineering

Mechanical engineering

Electrical systems knowledge

Documentation & reporting

Global cross-site work

Travel up to 30%

Tools

AutoCAD

Revit MEP

6SigmaDC

Future Facilities

Job description

Millennium seeks a hands-on Data Center MEP Engineer in New York to lead end-to-end design, commissioning and lifecycle management of liquid cooling and critical mechanical systems.

You will develop hydraulic models, perform thermal simulations, and oversee electrical infrastructure, including UPS, PDUs and generators, collaborating with global teams and traveling up to 30% as needed.