Data Center MEP Engineer

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

Job summary

Millennium leads the design and operation of critical data center MEP systems in a high-density environment. The role focuses on end-to-end design, commissioning, and continuous improvement of liquid cooling infrastructure, including direct liquid cooling, cold-plate assemblies, and rear-door heat exchangers across global sites.

The engineer will develop hydraulic models, perform thermal simulations, and coordinate with electrical and mechanical teams to ensure reliable UPS, PDU, and switchgear

Qualifications

• 5+ years of hands-on data center MEP engineering experience.
• Experience designing and commissioning liquid cooling technologies.
• Strong knowledge of chilled water, glycol, and refrigerant-based cooling.
• Familiarity with ASHRAE TC 9.9, Uptime Institute Tier, EN 50600 and NFPA 70.

Responsibilities

• Lead end-to-end design, commissioning, operation and improvement of liquid cooling infrastructure.
• Develop hydraulic models, heat-load calculations, and thermal simulations for high-density racks.
• Define liquid cooling distribution architecture and integration with chillers or dry-coolers.
• Oversee design, commissioning, and maintenance of critical mechanical systems (chillers, AHUs, CRAC/CRAH).
• Support electrical infrastructure design (UPS, PDU, switchgear, generators).
• Act as Owner’s Engineer for MEP capital projects, manage RFIs, submittals, and change orders.
• Maintain documentation (MOPs, SOPs, EOPs) and support risk assessments and audits.

Skills

Data center MEP engineering

Liquid cooling

Direct liquid cooling

Cold-plate

Rear-door heat exchanger

Chilled water

Project coordination

Documentation

Tools

AutoCAD

Revit MEP

6SigmaDC

Future Facilities

Job description

Data Center MEP EngineerAbout MillenniumMillennium is a global, diversified alternative investment firm, founded in 1989. Defined by evolution, innovation and focus, Millennium’s mission is to deliver results for our investors.Our people are empowered with both independence and support: the autonomy to pursue ideas with conviction and the backing of a global network committed to collaboration, disciplined risk management and continuous learning. With opportunities to deepen expertise and accelerate development, talent at Millennium is equipped to adapt, evolve and build lasting impact over time. Discover how transformative growth accelerates impact.Meet the TeamCore to the health and growth of our business, 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.What You'll DoLead 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 systemsDevelop hydraulic models, heat-load calculations, and thermal simulations to validate cooling capacity for high-density rack deploymentsDefine and maintain liquid cooling distribution architecture, including cooling distribution units, manifolds, secondary loops, leak detection, and integration with chilled water or adiabatic dry-cooler plantsOversee 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 systemsSupport the design, review, and commissioning of critical electrical infrastructure, including UPS systems, PDUs, switchgear, generators, transfer switches, and distribution boardsAct as Owner’s Engineer for MEP capital projects, managing contractor designs, RFIs, submittals, change orders, schedules, costs, risks, and equipment acceptance testingMaintain critical-facility documentation, including MOPs, SOPs, EOPs, engineering standards, design guides, and commissioning records, while supporting change management and risk assessmentsMonitor infrastructure performance and capacity, drive efficiency improvements, support audits and compliance requirements, and report key availability, capacity, PUE, and WUE metrics to senior leadershipWhat You Bring5+ years of hands-on data center MEP engineering experience in enterprise, hyperscale, or colocation environments; experience in financial services or other mission-critical environments is a plusDemonstrated experience designing and commissioning at least one liquid cooling technology, including direct liquid cooling, cold-plate, rear-door heat exchanger, or immersion cooling solutionsStrong 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 detectionWorking knowledge of critical electrical systems, including UPS topology, generator sizing, switchgear, PDUs, single-line diagrams, and integrated systems testingExperience delivering MEP capital projects from design through commissioning and operational handoffFamiliarity with ASHRAE TC 9.9 guidelines, Uptime Institute Tier methodology, EN 50600, NFPA 70, IEC 60364, and applicable building and electrical safety requirementsProficiency with CAD or BIM tools such as AutoCAD or Revit MEP and thermal-modeling tools such as 6SigmaDC, Future Facilities, or comparable platformsStrong documentation, project coordination, communication, and problem-solving skills, with the ability to work independently across global sites and travel up to 30%The estimated base salary range for this position is $175,000 to $250,000, which is specific to New York and may change in the future. Millennium pays a total compensation package which includes a base salary, discretionary performance bonus, and a comprehensive benefits package. When finalizing an offer, we take into consideration an individual’s experience level and the qualifications they bring to the role to formulate a competitive total compensation package.