Water Treatment Engineer

Water Treatment & Balancing EngineerLocation: Cambridge, with travel across Oxford, London and the wider South East
Salary: £45,000–£55,000, depending on experience
Package: Company van, enhanced benefits and expenses covered

Our client, a growing specialist contractor within the renewable energy sector, is looking for an experienced Water Treatment & Balancing Engineer.

The company designs and installs ground source heat pump systems across residential, commercial and public-sector developments. This position offers the opportunity to work on innovative low-carbon heating projects and play a key role in developing the water treatment and balancing function.

The RoleYou will be responsible for flushing, treating, balancing and commissioning heating systems to ensure they operate safely and efficiently from installation.

Key responsibilities will include:

Flushing, cleaning and chemically treating closed-loop heating systems

Conducting water-quality testing, sampling and analysis

Dosing systems with inhibitors, glycol and other treatment chemicals

Balancing heating systems and underfloor heating circuits

Setting and commissioning balancing valves, pumps and flow rates

Supporting the commissioning and start-up of ground source heat pump systems

Recording commissioning data and producing accurate reports

Preparing RAMS and other relevant safety documentation

Identifying and resolving system performance issues

Working closely with installation, commissioning and project teams

Ensuring work meets industry standards, health and safety requirements and project specifications

About YouThe successful candidate will ideally have:

Previous experience in water treatment, hydronic balancing or HVAC commissioning

Experience working with commercial or domestic heating systems

A strong understanding of heating circuits, pumps, valves and flow balancing

Knowledge of closed-system water treatment and chemical dosing

The ability to interpret water-treatment sampling results

Strong reporting and general computer skills

A proactive approach to problem-solving

The ability to work independently and manage your own workload

A full UK driving licence

Experience with ground source or air source heat pumps, BSRIA commissioning procedures or a mechanical/building-services background would be advantageous. Relevant CSCS, ECS, water-treatment or commissioning qualifications are also desirable.

Package and Benefits
£45,000–£55,000 basic salary

Company van

Business expenses covered

Accommodation provided when overnight stays are required

Enhanced pension scheme

Private health insurance after six months

Income protection

Death-in-service insurance

Holiday allowance including bank holidays, your birthday and additional company days

Opportunity to work on nationwide renewable-energy projects

Scope to develop and grow the department

The role will involve travel across Cambridge, Oxford, London and the wider South East, with occasional UK-wide travel. Accommodation and relevant expenses will be provided where required.

Apply today or contact the recruitment team for a confidential discussion
Only candidates based in UK and eligible to work in UK are allowed