Data Center Mechanical Commissioning Engineer

Five and Fly•Various Locations, AZ

10h•Onsite

About The Position

The Mechanical Commissioning Engineer is responsible for executing mechanical commissioning activities on mission-critical data center projects under the direction of senior engineers, discipline leads, and project managers. This role focuses on disciplined execution, accurate documentation, and system readiness to support reliable cooling and mechanical performance.

Requirements

Foundational understanding of mechanical and cooling systems
Familiarity with CRAH/CRAC units, chillers, pumps, valves, and heat rejection equipment
Ability to read and interpret mechanical drawings, P&IDs, and sequences of operation
Understanding of basic redundancy and thermal performance concepts
Willingness to learn commissioning processes and tools
Bachelor’s degree in Mechanical Engineering or equivalent experience
2–7 years of experience in mechanical systems, construction, or commissioning

Nice To Haves

Mission-critical or data center experience
Prior exposure to commissioning or testing activities
OSHA 10 or 30-Hour Construction Safety
Commissioning-related coursework or training

Responsibilities

Execute mechanical commissioning activities as assigned by Senior Engineers or Leads
Perform Pre-Functional Checks (PFCs), including L2/L3 readiness inspections
Execute Functional Performance Testing (FPT) per approved procedures
Support Integrated Systems Testing (IST), including thermal failure and recovery scenarios
Coordinate with electrical, controls teams, contractors, and OEMs during testing
Document test results, deficiencies, and corrective actions
Maintain accurate, timely commissioning documentation