Construction Assurance Manager

Company: Thames Water

Location: London

Posted: April 11th, 2026

Are you an experienced construction professional with a background in wastewater, or a background in another industry with transferable skills?

Thames Water have an exciting opportunity for you!

We’re seeking a Construction Assurance Manager to lead assurance within our major projects team, ensuring compliance with policies, specifications, and best practices. You’ll provide proactive leadership through construction, commissioning, and handover, influence early project development for constructability and commissioning, and manage a team of up to eight engineers to drive consistency and innovation.

This role also involves improving assurance processes, resolving escalated issues, ensuring consultant compliance, and leading defect management to guarantee timely resolution. Join us to play a key role in delivering safe, efficient, high-quality projects.

What you’ll be doing as a Construction Assurance Manager

The successful candidate will be based at an Office within the East London catchment of Thames Water, Beckton and Crossness STW are the main sites however an expectation of this role is to travel across the whole of Thames Water catchment.

As part of this role, you must be on-site 4 days a week, as required by the business.

36 hours a week - Monday to Friday.

Successful candidates should hold a valid driving licence and have access to personal transportation – this role comes with a £5,800 per annum car allowance.

What you should bring to the role

What’s in it for you?

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