Water Engineer

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Equinix is the world's digital infrastructure company®, shortening the path to connectivity to enable the innovations that enrich our work, life and planet.

A place where bold ideas are welcomed, human connection is valued, and everyone has the opportunity to shape their future.

Joining our operations team means being at the center of everything - maintaining and evolving critical infrastructure that powers the digital world and delivers real impact for our customers, communities and society. You'll find belonging, purpose, and a team that welcomes you-because when you feel valued, you're empowered to do your best work.

Job Description

Job Title: Water Engineer - Data Centre (Mon-Fri)

Location: Slough

Role Overview:

We are seeking a dedicated Water Engineer to oversee the maintenance, performance, and compliance of water-based infrastructure within our mission-critical data centre. This role is vital to ensuring the continuous operation of cooling systems, water treatment equipment, and domestic water services, supporting both uptime and sustainability goals.

Key Responsibilities:

Preventive & Reactive Maintenance:

• Perform scheduled and reactive maintenance on water systems including chilled water loops, cooling towers, pumps, valves, and filtration units.
• Carry out disinfection and de-scaling of cooling towers in line with industry best practices.
• Respond promptly to system alarms, leaks, or failures to minimise operational disruption.

• Monitor system performance using BMS and SCADA platforms.
• Conduct inspections and diagnostics to identify wear, corrosion, or inefficiencies.

• Operate, maintain, and calibrate water treatment systems (chemical dosing, filtration, softening).
• Ensure water quality meets operational standards and complies with environmental and health regulations.
• Maintain domestic water systems, including hot and cold water services, ensuring hygiene and safety.

• Maintain accurate maintenance logs, water hygiene logbooks, and compliance documentation.
• Support audits and reporting on water usage, system performance, and maintenance KPIs.
• Ensure all activities align with Legionella control and water hygiene regulations.

• Supervise third-party contractors, ensuring adherence to safety and quality standards.
• Assist in procurement and inventory management of spare parts and consumables.

• Adhere to all health and safety regulations, including confined space entry and chemical handling.
• Support risk assessments and method statements for all maintenance activities.

• NVQ Level 3 or equivalent in Mechanical Engineering, Water Engineering, or Building Services.
• Experience in water systems maintenance, ideally in a data centre or critical environment.
• Strong understanding of chilled water systems, cooling towers, and water treatment processes.
• Experience in disinfection and de-scaling of cooling towers.
• Familiarity with CMMS platforms and digital maintenance tools.
• Knowledge of Legionella control, water hygiene, and domestic water system maintenance.
• Experience maintaining compliance documentation and logbooks.

• BOAS or similar boiler/cooling certification.
• Water treatment qualifications (e.g., City & Guilds, WMSoc, or equivalent).
• Experience with energy-efficient water system operations.