Site Manager - Windsor

Construction, Property and Engineering; Windsor; On-site; GBP 74,000 - 83,000; Full time

Job summary

Randstad CPE is seeking an experienced Site Manager to oversee the construction extension of a Water Treatment Works in Windsor. You will join a fully resourced site team, delivering frontline construction, coordinating civils and envelope work, and driving safety standards on site.

The role requires a proven track record delivering civil engineering or building extensions within the UK water sector, with strong subcontractor leadership and collaboration with management teams.

Qualifications

• Experience delivering civil engineering or building extensions within the UK water sector (WTW / WwTW).
• Strong subcontractor management skills and a collaborative approach with engineering and management teams.

Responsibilities

• Manage day-to-day site operations for the building extension, coordinating civils, RC structures, groundworks and building envelope workstreams.
• Direct trade gangs and subcontractors, working with the General Foreman and Supervisors to keep production aligned with short-term lookaheads.
• Enforce water sector safety standards, manage daily site inductions, sign off RAMS, and maintain safe interfaces around live plant assets.
• Oversee Inspection and Test Plans (ITPs), manage site logistics, log daily diaries, and report progress to the Project Manager.

Skills

Site management

Subcontractor management

Team leadership

Job description

Site Manager (Water Treatment Works)

Location: Windsor

Rate: £400 - £450 per day (LTD / Outside IR35)

Duration: 3 Months Initial (Strong potential to move onto subsequent framework schemes)

Start Date: Immediate / ASAP

Project Overview

We are seeking an experienced Site Manager to oversee the construction phase of a new extension to an operational Water Treatment Works (WTW).

You will join a fully resourced, collaborative site team-working alongside a Senior PM, PM, Project Engineer, General Foreman, and Supervisors-to drive front-line delivery, subcontractor performance, and rigorous site safety standards.

Key Responsibilities

• Site Delivery: Manage day-to-day site operations for the building extension, coordinating civils, RC structures, groundworks, and building envelope workstreams.
• Team & Subcontractor Leadership: Direct trade gangs and subcontractors, working in tandem with the General Foreman and Supervisors to keep production aligned with short-term lookaheads.
• Health, Safety & Environment: Enforce strict water sector safety standards, manage daily site inductions, sign off on RAMS, and maintain safe working interfaces around live plant assets.
• Quality & Progress Tracking: Oversee Inspection and Test Plans (ITPs), manage site logistics, log daily diaries, and report progress directly to the Project Manager.

Requirements & Qualifications

• Experience: Proven track record as a Site Manager delivering civil engineering or building extensions within the UK water sector (WTW / WwTW).
• Leadership: Strong subcontractor management skills and a collaborative approach working alongside established engineering and management teams.

Mandatory Certifications

• SMSTS (Site Management Safety Training Scheme)
• CSCS Card (Management / Black or Gold)
• EUSR Category 1 & 2
• First Aid

Desirable Certifications

• TWC (Temporary Works Coordinator)
• AP (Authorised Person - Mechanical / Electrical / Pressure Systems)

Randstad CPE values diversity and promotes equality. No terminology in this advert is intended to discriminate against any of the protected characteristics that fall under the Equality Act 2010. We encourage and welcome applications from all sections of society and are more than happy to discuss reasonable adjustments and/or additional arrangements as required to support your application.

Candidates must be eligible to live and work in the UK.

For the purposes of the Conduct Regulations 2003, when advertising permanent vacancies we are acting as an Employment Agency, and when advertising temporary/contract vacancies we are acting as an Employment Business.