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Commissioning Engineer – Critical Cooling

United Kingdom 48000.00 - 52000.00 GBP / Year · Job Posted February 16, 2026
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Job Description

We’re recruiting a Commissioning Engineer to join a specialist OEM team delivering large-scale data centre and critical cooling projects across the UK, with occasional European project support. This is a commissioning-led role, not service. You’ll take ownership of complex cooling systems from first power-up through to final sign-off on high-value, mission-critical sites.

Job Responsibility

  • Lead the commissioning of full data centre cooling infrastructure, including chillers, AHUs, CRAC/CRAH units and fan wall systems
  • Functional testing, optimisation, controls integration, documentation and client handovers
  • Work closely with advanced controls platforms including BACnet and Modbus, supporting integration with site BMS systems
  • Manage own time and represent the business on complex project sites

Requirements

  • Proven commissioning experience at sign-off level with chillers, AHUs and CRAC/CRAH systems
  • Strong controls knowledge, including BACnet and Modbus
  • Previous data centre or critical cooling commissioning experience
  • Comfortable working independently on complex, live or near-live sites
  • Confident producing commissioning documentation and leading client handovers
  • Full UK driving licence
  • Willingness to travel, including occasional European projects

What we offer

  • Door-to-door travel paid
  • Time-and-a-half paid on all hours worked beyond 40 per week (including travel)
  • Consistent, predictable overtime due to long-term project delivery
  • Pension contributions calculated on full earnings
  • Company vehicle with private use, laptop, tablet, tools and high-spec equipment
  • Paid travel, accommodation and expenses
  • Ongoing OEM training on critical cooling systems and controls
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