Description CMDP is a joint venture between Costain and MWHT and delivers a range of schemes to maintain and improve Southern Water’s water supply and wastewater treatment works in the eastern half its region (Kent & Sussex) A Lead Commissioning Engineer on water supply projects plays a pivotal role in ensuring that water treatment and distribution systems are installed, tested, and optimized to meet operational standards and regulatory requirements. This position is critical in transitioning a water supply project from construction to operational status, ensuring systems work safely, efficiently, and reliably before being handed over to operators. The Lead Engineer should lead a team of Commissioning Engineers to ensure that each project milestone is successfully achieved. LI-SA1 Responsibilities Review and develop CMDP commissioning plans, schedules, and procedures tailored to the specific requirements of water supply systems, integrating package plant, pumping stations, process streams, and bespoke treatment solutions. Provide consultation into resourcing requirements and provide knowledge into the organisational structure of the team. Coordinate with project teams, including design, construction, and operational teams, to ensure a smooth transition through the commissioning phases Lead the inspection and verification of equipment and systems to confirm that they are installed according to Statutory Requirements, design specifications, MED’s, WIME’s and manufacturer guidelines. Conduct and oversee testing procedures for various systems, such as pressure testing, functional tests, and performance assessments for pumps, valves, control systems, and treatment units. Oversee the sign off FAT and SAT, and process witness tests Conduct visual routine works site checks including security, safety, and housekeeping; report hazards and/or take appropriate action to resolve Identify and report asset faults; use the escalation process to report any issues and concerns. Assist with the delivery and execution of the client requirements in the Projects WQRA (Water Quality Risk Assessment). Ensure that commissioning activities comply with industry standards, environmental regulations, and local authority guidelines. Develop and maintain commissioning documentation and records to demonstrate compliance and quality assurance throughout the commissioning process. Qualifications Organise and prioritise work. Programme Management. Ability to plan, manage, and coordinate commissioning tasks within a larger project framework team. Identify risks and control measures. Follow health and safety and environmental legislation, regulations, and practice. For example, apply control measures, wear PPE, harness, gas detector and breathing apparatus required for the task. Proven Electrical/ICA commissioning experience.