Job Title:
Commissioning Mechanical Engineer – Data Centres – ENGLISH NECESSARY

Europe / Ireland (Project-Based)
Tier 1 Contractor

Overview

We are seeking an experienced Commissioning Mechanical Engineer with a strong background in
data centre environments
to lead the commissioning of critical HVAC and mechanical systems. This role focuses on
air and water-side systems
, including
performance validation of flow rates, air volumes, and system balancing
, ensuring all installations meet mission-critical standards.

Key Responsibilities
- Lead commissioning of mechanical systems across data centre projects
- Commission
HVAC systems
including CRAH/CRAC units, chillers, AHUs, and cooling infrastructure
- Perform and validate
air-side commissioning
:
- Airflow measurement (CFM)
- Air changes per hour (ACH)
- Pressurisation and containment performance
- Perform and validate
water-side commissioning
:
- Chilled water and condenser water
flow rates (L/s, m³/h)
- Pump performance and head pressure verification
- System balancing across distribution networks
- Verify




thermal performance
and cooling capacity against design criteria
- Develop and execute commissioning plans, scripts, and procedures
- Lead
system balancing activities
(TAB – Testing, Adjusting & Balancing)
- Support and coordinate
pre-commissioning, functional testing, and IST
- Witness and manage
FAT & SAT
for mechanical systems
- Troubleshoot performance issues related to
flow, pressure, and temperature stability
- Coordinate with BMS/controls teams for system optimisation and integration
- Ensure compliance with project specifications, ASHRAE guidelines, and client standards
- Maintain detailed commissioning records, reports, and validation documentation
- Support project handover including O&M; manuals and client training

Requirements
- Degree in Mechanical Engineering or related discipline
- Minimum 5 years’ data centre commissioning experience (essential)
- Strong hands-on experience with
HVAC systems i

📌 Commissioning Engineer (Región Metropolitana)
🏢 Crewit Resourcing Group
📍 Región Metropolitana