Mechanical Engineer III - Systems Integrator

Hamilton Barnes Associates Limited; Town of Texas (WI); On-site; USD 140,000 - 171,000; Full time

Benefits offered by this job

Annual bonus

Restricted stock vesting over three yr

100% employee medical/dental/vision

401(k) with company match

Paid Time Off

Job summary

Hamilton Barnes Associates Limited seeks a Mechanical Engineer III to support design, construction, commissioning, and operation of HPC data centers. You will own mechanical cooling systems and collaborate across site development teams.

Reporting to the VP of Engineering, the role covers CFD, energy calculations, and performance monitoring to drive energy efficiency and reliability. A data center background and strong communication are required.

Qualifications

• Bachelor's Degree in Mechanical Engineering with 5+ years in data center facilities.
• Experience with energy/HVAC load calculation software and CFD tools.
• Proficiency in Revit, AutoCAD, SolidWorks or similar.
• Knowledge of ASHRAE, ASPE, IPC, IECC codes for data centers.

Responsibilities

• Serve as mechanical SME for cooling systems across design, build, and ops.
• Review specs, calculations, drawings from consultants and vendors.
• Perform analyses including CFD and thermal simulations to optimize cooling.
• Collaborate with architects and electrical engineers for integrated design.
• Support project planning: schedules, budgets, resources.
• Lead or support construction and commissioning and monitor performance.

Skills

HVAC load calculations

CFD simulations

Communication skills

Self-driven

Education

Bachelor's Degree in Mechanical Engineering

Tools

Revit

AutoCAD

SolidWorks

Job description

Are you looking for an exciting new opportunity?

Join a vertically integrated AI Cloud provider delivering large-scale data centres and GPU clusters for AI training and inference, supported by an extensive portfolio of grid-connected land and power across renewable-rich regions in North America, Europe, and APAC.

The company is looking for a Mechanical Engineer III to support mechanical engineering activities across current and future site development, covering the design, construction, commissioning, and operation of High Performance Computing (HPC) data centres. Reporting to the VP of Engineering, the role offers a hands-on opportunity to work directly on the cooling systems behind cutting-edge HPC infrastructure, with technical ownership and exposure across the full project lifecycle.

Responsibilities:

• Serve as the mechanical SME for cooling systems (HVAC, plumbing, piping and controls) across design, construction, commissioning and operations of HPC data centers
• Review and validate specifications, calculations, drawings and other technical deliverables from consultants, manufacturers, engineering firms and commissioning agents
• Perform technical analyses, including calculations, simulations, CFD and thermal analysis, to optimize liquid and air cooling and airflow
• Collaborate with architects, electrical engineers and other stakeholders to ensure integrated design solutions
• Support project planning, including schedules, budgets and resourcing, coordinating with site teams, corporate staff and external engineering partners
• Lead or support construction, installation and commissioning activities, and monitor mechanical system performance to maintain reliability and drive energy-efficient improvements

Skills/Must Have:

• Bachelor's Degree in Mechanical Engineering, with 5+ years' experience in data center and/or mission-critical facilities design, construction or operations
• Experience with energy and HVAC load calculation software, plus computational fluid dynamics (CFD) tools
• Proficiency in Revit, AutoCAD, SolidWorks or other relevant design tools
• High level of knowledge of ASHRAE, ASPE, IPC and IECC codes/standards relevant to data centers and mission-critical facilities
• Knowledge of data center infrastructure management (DCIM) tools and solutions
• Strong communication skills across all levels; self-driven and comfortable with uncertainty and limited direction

Benefits:

• Annual performance bonus
• Restricted stock (equity) vesting over three years and growing in value as the company scales
• 100% company-paid medical, dental and vision premiums for employees, 75% for dependents
• 401(k) with company match
• Paid Time Off plus paid holidays

Salary:

• Up to $155,000 base