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Principal Quantity Surveyor

Job in Reading, Berkshire, RG1, England, UK
Listing for: Pertemps Thames Water
Full Time position
Listed on 2026-01-16
Job specializations:
  • Engineering
    Civil Engineering
Salary/Wage Range or Industry Benchmark: 90000 GBP Yearly GBP 90000.00 YEAR
Job Description & How to Apply Below
Join our growing team as we embark on an ambitious £multi-billion journey to develop and modernise our Water and Wastewater Treatment Works. This is an opportunity to lead a dedicated team of Quantity Surveyors and provide them with support and guidance within the Major Projects and Programmes division at Thames Water. This is a significant role, and you will oversee a programme valued at around £500 million, playing a vital role in protecting our communities, safeguarding our infrastructure, and ensuring the cleanliness of our rivers.

What you’ll be doing as a Principal Quantity Surveyor

Working closely with the Managing Quantity Surveyor, managing a team of Quantity Surveyors, and ensuring they deliver their outputs.
Ensure cost management against the budget, highlighting commercial challenges early, including managing and reporting on contingency/risk.
Manage the cost estimating process using our Estimating Team; understand Business Plan budgets; validate the project's estimated cost and check its affordability against the Business Plan; provide insight and advice into estimates.
Supporting procurement by ensuring Suppliers and Contractors are engaged under the most appropriate Terms & Conditions. Provide commercial support during the procurement of the main contract, including assisting in preparing tender documents, undertaking commercial evaluation, benchmarking, and negotiating tenders.
Ensure contracts are administered according to the terms and conditions and act as the first escalation point should any challenges occur.
Work with the finance department to ensure all financial systems are updated to time, cost, and quality; help identify non-performance and implement corrective action.
Ensure we always maintain financial governance and provide expert input to financial and contract governance proposals.
Support the management and optimisation of budgets and spending on your portfolio of contracts.
As the senior member of the commercial team, provide commercial advice and guidance to others.

Role

Location:

This role will be based at Clearwater Court on a hybrid basis. With the flexibility to be on-site within the Thames Valley and London.

Working Hours:

36 hours a week, Monday to Friday.

Salary:
Competitive salary from £70,000 to £90,000 per annum + £5,800 Car Allowance.

To thrive in this role, the essential criteria are:

Hold a degree or a master’s in quantity surveying and be chartered with MRICS.
Have experience in the civil engineering sector, including transportation, nuclear, utilities, and related fields.
Be competent in line managing a small team and developing the team for success.
Experience in both pre & post-contract quantity surveying duties.
Strong communication and negotiation skills are crucial, as well as the ability to bring numerous stakeholders together to bring project opportunities to fruition.

Additional skills and experiences would be great to have/bring:

Previous water or utilities experience

What’s in it for you?

Competitive salary from £70,000 to £90,000 per annum.
26 days holiday per year, increasing to 30 with the length of service (plus bank holidays).
Car Allowance
Performance-related pay plan directly linked to both company and individual performance measures and targets
Generous Pension Scheme through AON
Private Medical Health Care
Access to lots of benefits to help you take care of you and your family’s health and wellbeing, and your finances – from annual health MOTs and access to physiotherapy and counselling, to Cycle to Work schemes, shopping vouchers and life assurance.

Find out more about our benefits and perks.

Who are we?
We’re the UK’s largest water and wastewater company, with more than 16 million customers relying on us every day to supply water for their taps and toilets. We want to build a better future for all, helping our customers, communities, people, and the planet to thrive. It’s a big job, and we’ve got a long way to go, so we need help from passionate and skilled people, committed to making a difference and getting us to where we want to be in the years and decades to come.

Learn more about our purpose and values.

Working at Thames Water
Thames Water is a…
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