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.
What You’ll Be Doing
You’ll lead the commissioning of full data centre cooling infrastructure, including chillers, AHUs, CRAC/CRAH units and fan wall systems. The role covers functional testing, optimisation, controls integration, documentation and client handovers.
Work is predominantly UK-based (London and South East heavy), with planned project travel rather than reactive call‑outs. You’ll work closely with advanced controls platforms including BACnet and Modbus, supporting integration with site BMS systems.
This is a mobile, autonomous position where engineers are trusted to manage their own time and represent the business on complex project sites.
What You’ll Need
- 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
Salary, Earnings & Package
£48,000 – £52,000 base salary (DOE), structured to deliver strong total annual earnings.
The package includes:
- 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
For engineers comfortable with site‑based project work, the structure delivers earnings well beyond the headline base, alongside stability and high‑quality projects.
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