Water Treatment Engineer/Plumber London & M25 Region £38,000 - £42,000 An industry-leading building services provider is looking for a skilled Mobile Water Treatment Engineer to join their growing team, covering sites across London and the M25. This is an excellent opportunity for someone with a strong water treatment background who enjoys a varied role across multiple commercial environments. Please note our client is looking for an engineer who has good plumbing skills to be considered for this role. Water Treatment Engineer/Plumber Key Responsibilities: Manage and maintain water treatment systems across a portfolio of sites. Carry out water sampling, testing, and analysis to ensure compliance with Legionella regulations. Implement and maintain water treatment programs to control scale, corrosion, and biological growth. Perform routine inspections, cleaning, and chemical dosing on cooling towers and closed systems. Diagnose faults and resolve technical and operational issues on-site....