Senior Data Center Mechanical Engineer: High-Density AI Cooling

Harbor Compute; United States; Remote; USD 190,000 - 260,000; Full time

Benefits offered by this job

Health insurance fully covered

Unlimited PTO

Equity

Job summary

Harbor Compute seeks a Senior Data Center Mechanical Engineer to set the mechanical standard across our campuses, owning the basis of design from concept through commissioning, covering air and liquid cooling for multi-MW hyperscale deployments.

You’ll lead design, specify systems, define redundancy, and mentor engineers, reporting to the Chief Infrastructure Officer with travel about 25% to project and vendor sites.

Qualifications

• Bachelor’s degree in mechanical engineering
• 12+ years of mechanical engineering experience, including 7+ years in mission-critical or data center environments on multi-MW hyperscale, colocation or large enterprise projects
• Hands-on experience designing or deploying liquid cooling for high-density racks (30–100+ kW/rack)
• Deep knowledge of chilled water plants, heat rejection, economization and controls sequences, and of ASHRAE thermal guidelines and relevant codes
• Proficiency with CFD tools (e.g. 6SigmaDCX, Ansys) and design tools (Revit, AutoCAD, Navisworks)
• Experience supporting commissioning and resolving issues in live facilities, and managing consultants and vendors while explaining trade-offs clearly to executives

Responsibilities

• Lead mechanical design for new campuses and expansions, including chilled water, evaporative, closed-loop and economizer-based cooling plants
• Own the mechanical basis of design, standards and reference architectures for the portfolio, in line with ASHRAE 90.4 and TC 9.9, IMC/IBC, NFPA and local AHJ requirements
• Design and specify liquid cooling systems (direct-to-chip, CDUs, rear-door heat exchangers, facility water loops) for high-density AI/GPU deployments
• Define redundancy strategies (N, N+1, 2N, concurrent maintainability) and drive PUE and WUE targets through equipment selection, controls sequences and heat-rejection strategy
• Perform and review load calculations, hydraulic analysis and CFD modeling for white space and plant areas
• Direct engineers of record, design consultants and vendors, from drawings and submittals through major equipment selection (chillers, CRAHs/fan walls, dry coolers, pumps, CDUs) and factory witness testing
• Support construction and integrated commissioning (L1–L5), including sequence-of-operations validation and failure-mode testing, and feed lessons learned back into design standards

Skills

12+ years experience

Liquid cooling design

ASHRAE knowledge

CFD tools

Revit

AutoCAD

Navisworks

Commissioning experience

Education

Bachelor’s degree in mechanical engineering

Tools

6SigmaDCX

Ansys

Job description

Harbor Compute seeks a Senior Data Center Mechanical Engineer to set the mechanical standard across our campuses, owning the basis of design from concept through commissioning, covering air and liquid cooling for multi-MW hyperscale deployments.

You’ll lead design, specify systems, define redundancy, and mentor engineers, reporting to the Chief Infrastructure Officer with travel about 25% to project and vendor sites.