Service & Commissioning Engineer – Data Centre Cooling

Perigon Search; Greater London; Hybrid; GBP 60,000 - 65,000; Full time

Job summary

A leading global infrastructure firm in the UK is seeking an experienced engineer to commission liquid cooling systems. The role involves testing and troubleshooting advanced thermal systems for AI data centres, with responsibilities including managing chilled water circuits and working closely with BMS teams. The ideal candidate will have a strong AC/HVAC background and excellent documentation skills. Competitive salary with generous benefits including healthcare, pension, and ample holidays, along with long-term growth opportunities.

Benefits

£60,000–£65,000 basic with OTE of £70,000–£80,000

35 days’ holiday

Private healthcare

6% employer pension

Long-term growth opportunities

Qualifications

• Must have experience in commissioning, service, or project engineering in HVAC.
• Ability to work confidently with chilled water circuits and hydronic systems.
• Experience in documentation, testing, and precision in work.

Responsibilities

• Commission liquid-to-chip and liquid-to-liquid cooling systems.
• Test and troubleshoot cooling systems for hyperscale data centres.
• Provide planned support and upgrades as needed.

Skills

Strong AC/HVAC background

Confident with chilled water circuits

Experience with BMS/PLC teams

Skilled in documentation and testing

Willing to travel

Job description

AI workloads are booming, and next-gen data centres aren’t cooling themselves. This is your chance to get hands‑on with the most advanced thermal systems in Europe - specialising in liquid‑to‑chip and liquid‑to‑liquid cooling tech that’s quietly doing the heavy lifting behind tomorrow’s infrastructure.

What’s on offer

• £60,000–£65,000 basic with OTE of £70,000–£80,000
• 35 days’ holiday including bank holidays
• Private Bupa healthcare, income protection, and life/critical illness cover
• 6% employer pension via salary sacrifice (with NI savings)
• Long‑term growth with a global infrastructure heavyweight

What you’ll be doing

You’ll be on the front line of commissioning liquid‑to‑chip and liquid‑to‑liquid cooling systems for hyperscale and AI data centres - testing, troubleshooting, and fine‑tuning everything from CDUs to chilled loops. Some days you'll be elbows‑deep in flow rates and firmware, others you’ll be working with BMS teams to iron out control quirks or updating test documentation. There’s a service angle too - providing planned support, upgrades and the occasional firmware refresh. It’s a hands‑on, problem‑solving role with plenty of variety and the occasional European trip when things need your touch on site.

What you’ll need

• Strong AC/HVAC background - commissioning, service, or project engineering
• Confident with chilled water circuits and hydronic systems
• Some experience working alongside BMS/PLC teams
• Skilled in documentation, testing, and getting things right first time
• Willing to travel as needed - mainly UK with some EU projects

Why this team?

With over 80,000 employees worldwide, this business is a true global force in infrastructure - spanning data centres, telecoms, EV charging, energy storage, automation, and more. They’re leading the way in AI cooling, rolling out cold plates, CDUs and immersion systems in some of the most demanding environments in Europe. But it doesn’t stop there. This isn’t just a technical role - it’s a launchpad. Engineers here have stepped into sales, management, product, and operational leadership. If you want long‑term opportunity, you’ll find it here.

Final call
Curious? Fire over your CV (or just a quick message) and I’ll fill you in on the details.