Data Center MEP Engineer

Millennium•New York, NY

13d•$175,000 - $250,000•Remote

About The Position

Millennium's Information Technology organization supports a flexible, scalable technology environment powered by advanced proprietary systems and the continued development of next-generation analytical and trading capabilities. The global Network & Data Center organization supports Millennium’s expanding data center portfolio and critical infrastructure, with responsibility for resilient mechanical, electrical, and cooling systems that enable high-density compute environments.

Requirements

5+ years of hands-on data center MEP engineering experience in enterprise, hyperscale, or colocation environments
Demonstrated experience designing and commissioning at least one liquid cooling technology, including direct liquid cooling, cold-plate, rear-door heat exchanger, or immersion cooling solutions
Strong mechanical engineering knowledge of chilled water, glycol, and refrigerant-based cooling systems, including pump sizing, pipe stress, flow analysis, cooling distribution units, secondary-loop hydraulics, and leak detection
Working knowledge of critical electrical systems, including UPS topology, generator sizing, switchgear, PDUs, single-line diagrams, and integrated systems testing
Experience delivering MEP capital projects from design through commissioning and operational handoff
Familiarity with ASHRAE TC 9.9 guidelines, Uptime Institute Tier methodology, EN 50600, NFPA 70, IEC 60364, and applicable building and electrical safety requirements
Proficiency with CAD or BIM tools such as AutoCAD or Revit MEP and thermal-modeling tools such as 6SigmaDC, Future Facilities, or comparable platforms
Strong documentation, project coordination, communication, and problem-solving skills, with the ability to work independently across global sites

Nice To Haves

experience in financial services or other mission-critical environments is a plus

Responsibilities

Lead the end-to-end design, commissioning, operation, and continuous improvement of liquid cooling infrastructure, including direct liquid cooling, cold-plate assemblies, rear-door heat exchangers, and related systems
Develop hydraulic models, heat-load calculations, and thermal simulations to validate cooling capacity for high-density rack deployments
Define and maintain liquid cooling distribution architecture, including cooling distribution units, manifolds, secondary loops, leak detection, and integration with chilled water or adiabatic dry-cooler plants
Oversee the design, commissioning, lifecycle management, and maintenance of critical mechanical systems, including chillers, cooling towers, dry coolers, CRAC and CRAH units, air handling units, and humidification systems
Support the design, review, and commissioning of critical electrical infrastructure, including UPS systems, PDUs, switchgear, generators, transfer switches, and distribution boards
Act as Owner’s Engineer for MEP capital projects, managing contractor designs, RFIs, submittals, change orders, schedules, costs, risks, and equipment acceptance testing
Maintain critical-facility documentation, including MOPs, SOPs, EOPs, engineering standards, design guides, and commissioning records, while supporting change management and risk assessments
Monitor infrastructure performance and capacity, drive efficiency improvements, support audits and compliance requirements, and report key availability, capacity, PUE, and WUE metrics to senior leadership