Mechanical Field Engineer — Data Center Operations

About this role

Fluidstack seeks an experienced mechanical engineer to oversee cooling and HVAC systems at a rapidly expanding AI data center in Buffalo. You'll own thermal operations across mission-critical infrastructure, drive procedural excellence in a live construction environment, and help establish operational standards as the company scales to 100+ GW capacity.

What you'll do

• Operate and troubleshoot cooling systems (chillers, cooling towers, CRACs, CDUs, pumps) in 24/7 mission-critical environments
• Develop and execute mechanical operating procedures (MOPs) and emergency protocols while maintaining safety compliance
• Monitor building management systems for thermal performance and respond to alarms and capacity issues
• Review design submittals and P&IDs, and support construction projects and capacity upgrades from operations perspective
• Coordinate third-party contractors and maintain accurate as-builts and documentation
• Ensure thermal precision and reliability for AI workloads

What they're looking for

• Hands-on mechanical systems troubleshooting in data center environments
• P&ID and technical drawing interpretation
• Chiller and cooling tower operation and maintenance
• Direct liquid cooling and CDU experience
• Procedure writing (MOPs, EOPs, AOPs)
• LOTO, confined-space, and refrigerant handling
• BMS monitoring and alarm response
• Contractor coordination and safety management

Benefits

• Competitive cash and equity compensation
• Retirement or pension plan aligned with local norms
• Health, dental, and vision insurance
• Generous PTO policy aligned with local norms