Data Centre Engineer

Salary: £? - ? per year

Requirements:

• Must have a data centre background.
• Demonstrable experience working with pressurized water systems, pipework installations, and fluid distribution networks.
• Knowledge of mechanical systems, including mechanical and HVAC systems, and controls.
• Experience reading and writing procedures, technical documents, and engineering drawings.
• Knowledge of generic mechanical room infrastructure such as chillers, cooler units, and fan controls.
• NVQ Level 3 in Mechanical, Electrical or Mechatronics, or NFQ Level 3, or equivalent.
• Knowledge of ACOP L8 and HSG274 guidance, with experience implementing compliant water treatment regimes.
• Practical understanding of fluid dynamics principles including flow rates, pressure drop, and heat transfer.
• Ability to work a flexible schedule, including weekends, nights, and holidays.
• Experience with EPMS, SCADA, or BMS controls system software or hardware.
• Direct experience with liquid cooling technologies such as CDUs or rear-door heat exchangers.
• City & Guilds 2079 or equivalent Legionella control qualification.
• Knowledge of water treatment processes including closed-loop and open-loop system management.
• IOSH Managing Safely or NEBOSH General Certificate.
• Experience with commissioning or decommissioning of mechanical systems.
• Understanding of cooling architectures and thermal management principles.
• Preferred backgrounds include construction, banking, or manufacturing/factory environments.

Responsibilities:

• Install, maintain, and repair pipework, fittings, valves, and manifolds across cooling distribution loops and water circuits.
• Operate and maintain air handling units, chillers, cooling towers, evaporative cooling systems, and liquid cooling infrastructure.
• Perform pressure testing, leak detection, and system integrity checks on pressurized water circuits.
• Manage water treatment programs in line with ACOP L8 and HSG274 requirements.
• Maintain and troubleshoot pumps, heat exchangers, coolant distribution units, and associated mechanical components.
• Monitor thermal performance of cooling systems to optimize flow rates and energy efficiency.
• Support commissioning and decommissioning of mechanical cooling infrastructure.
• Perform routine preventive maintenance on mechanical assets.
• Respond to alarms and incidents related to leaks, pressure anomalies, or thermal exceedances.
• Maintain accurate records of maintenance activities, water treatment logs, and system parameters.
• Collaborate with controls engineers on BMS/SCADA integration for mechanical plant monitoring.
• Adhere to all site safety procedures including permit-to-work and LOTO.

Technologies:

• Flow
• Hardware
• Support
• Liquid

More:

We are based in London, United Kingdom, and this is an onsite, shift-based role supporting 24/7 operations across our data centre portfolio. We are seeking a mechanically-biased Engineering Operations Technician to join our team in a hands-on position focused on the installation, maintenance, and troubleshooting of mechanical cooling and water systems infrastructure. We value knowledge-sharing, mentorship, and career development, and we promote work-life harmony, flexibility, and an inclusive culture supported by employee-led affinity groups.

last updated 38 week of 2026