Senior Project Manager – Sewage Treatment Works

Senior Project Manager – Sewage Treatment Works

Reports to:

Project Director
Project:
Slough - Extension of an operational sewage treatment plant (STW)

Location:

First year in Central London, then in Slough.

Role Summary

We are seeking an experienced Senior Project Manager with a strong background in water/wastewater infrastructure to lead the extension of a live sewage treatment works that must maintain full operations throughout construction.

The candidate will own end-to-end delivery (scope, programme, budget, quality, safety, environmental compliance) while ensuring a seamless coordination with Thames Water’s operational team, strict adherence to Thames Water procedures and standards, and effective management of multidisciplinary engineering and delivery teams (civil, mechanical, electrical, chemical/process).

Key Responsibilities:

* Lead the full project lifecycle from project initiation, design coordination, procurement, construction, commissioning, to handover/closeout.

* Plan and sequence the works to ensure a full coordination with the existing treatment processes, avoiding any unplanned outages, including a meticulously management of the isolations and live interfaces.

* Establish and maintain the Project Execution Plan, programme, cost plan, risk register, and change control in line with client and internal governance.

* Serve as the primary point of contact for Thames Water and their operational representatives; chair progress, risk, and interface meetings.

* Coordinate permits, isolation plans, and method approvals with the Thames Water operational team to safeguard continuity of service and compliance with permit-to-work systems.

* Manage regulatory, statutory, and third-party stakeholders (e.g., local authorities, EA interfaces, utilities).

* Champion a safety-first culture; ensure compliance with CDM Regulations, RAMS, LOTO, confined space controls, temporary works, lifting operations, and process safety protocols.

* Ensure robust environmental management: pollution prevention, odour control, sludge handling, silt and noise/dust management, and wastewater discharge compliance.

* Oversee quality assurance/quality control, ITPs, and documentation to meet client acceptance criteria.

* Coordinate civil, structural, mechanical, electrical, instrumentation & control, and process/chemical engineering inputs; ensure design constructability and operability.

* Oversee integration of M/&E plant, MCCs, SCADA/telemetry, and process tie-ins with live assets, plan staged commissioning and performance testing.

* Own cost performance: forecasting, earned value, change management, early warnings, and contract administration (e.g., NEC forms).

* Lead procurement of subcontractors, OEMs, and long-lead items; manage supplier performance and technical submittals.

* Maintain a realistic, risk-adjusted programme; implement recovery plans as needed.

* Lead commissioning strategy and phased cutovers; ensure robust testing, O&M documentation, training, spares, asset tagging, and clean handover aligned to Thames Water requirements.

* Manage and mentor the project team; allocate resources effectively across planning, engineering, commercial, and site delivery functions.

* Drive high-performance collaboration, clear communications, and proactive issue resolution.

Qualification, skills and experience:

* Degree in Engineering (Civil, Mechanical, Electrical, Chemical/Process, or related discipline).

* Experience delivering water/wastewater infrastructure projects (treatment works, networks, or major AMP frameworks).

* Demonstrable experience delivering construction projects on live/operational sewage treatment plants without service interruption.

* In-depth knowledge of Thames Water procedures, standards, and permit-to-work systems (e.g., isolations, method approvals, operational interfaces, documentation and assurance expectations).

* Proven track record managing multidisciplinary teams (civil, mechanical, electrical, chemical/process) through design, construction, commissioning, and handover.

* Strong H&S leadership with excellent command of CDM Regulations, RAMS, temporary works, and process safety in water environments.

* Solid…