Staff Mechanical Engineer - Data Center Cooling

Highlights

• Own cooling-system standards for large-scale AI data centers.
• Design full thermal path from GPU heat capture to heat rejection.
• Develop air, liquid, and hybrid cooling for greenfield and retrofits.

What they offer

• Generous cash & equity compensation
• Health, dental, and vision coverage for you and dependents
• Wellness and commuter stipends for select roles
• 401k plan with 2% company match
• Flexible paid time off plan

Ideal candidate

A hands-on thermal systems owner who thrives on high-density AI infrastructure and balances reliability, efficiency, and speed. You enjoy working cross-functionally from design through commissioning to keep GPUs cool at scale.

Requirements

• Experience designing cooling systems for data centers, mission-critical facilities, central plants, or large industrial environments
• Understand hydronic design, heat transfer, pumping, heat exchangers, chilled-water systems, and heat-rejection equipment
• Experience with direct-to-chip liquid cooling, CDUs, technology cooling-water loops, or other high-density cooling systems
• Can develop and review P&IDs, equipment specifications, mechanical layouts, and engineering calculations
• Can model system capacity, flow, pressure loss, temperature approach, and performance across varying conditions
• Understand cooling-system redundancy, failure domains, thermal ride-through, maintainability, and operational risk
• Understand relationship between GPU behavior, rack density, coolant conditions, and facility cooling capacity
• Can balance reliability, efficiency, water consumption, equipment cost, and delivery schedule
• Communicate clearly across engineering, construction, operations, vendors, and executive stakeholders
• Bachelor's degree in mechanical engineering or equivalent practical experience