_{09th October, 2026}

Water Treatment Engineer
East London 
Up to £45,000 per annum

We’re recruiting for a Water Treatment Engineer to join a leading building services provider at a prestigious commercial office building in East London. This is an excellent opportunity for an experienced engineer looking for a stable, Monday-to-Friday role within a well-established organisation, with ongoing development and opportunities for career progression.

Role Overview As a Water Treatment Engineer, you’ll take responsibility for the day-to-day operation, maintenance and compliance of the building’s water systems, with a particular focus on cooling towers and closed-loop systems. You’ll ensure all water treatment processes are carried out safely, efficiently and in line with relevant legislation and water hygiene standards.

Key Responsibilities

• Managing water treatment systems, including cooling towers and closed-loop systems.
• Carrying out routine water sampling, testing and monitoring.
• Implementing water treatment programmes to prevent scaling, corrosion and bacterial growth.
• Inspecting, cleaning and maintaining cooling towers.
• Monitoring chemical dosing systems and maintaining water quality.
• Identifying and resolving water treatment issues.
• Ensuring compliance with ACOP L8, HSG274 and relevant Legionella control requirements.
• Maintaining accurate records of water testing, maintenance and compliance activities.
• Producing reports and providing updates to site management.

Requirements

• Previous experience in water treatment, particularly working with cooling towers.
• Good knowledge of closed-loop systems and Legionella control.
• Relevant water treatment qualifications, such as City & Guilds, NVQ or equivalent.
• Understanding of ACOP L8, HSG274 and water hygiene legislation.
• Strong fault-finding and problem-solving skills.
• Good organisational, record-keeping and reporting abilities.
• Ability to work independently and as part of a team.

Salary & Benefits

• Up to £45,000 per annum.
• Monday to Friday, 8am–5pm.
• Prestigious commercial site in East London.
• Permanent position with a well-established building services provider.
• Long-term job security.
• Ongoing training and development.
• Opportunities for internal career progression.

If you’re an experienced Water Treatment Engineer looking for your next opportunity within a prestigious commercial environment, apply today!

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