JN Bentley
Senior Quantity Surveyor

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Mott MacDonald Bentley is a design and build business combining the design expertise of Mott MacDonald with the contracting experience of JN Bentley, operating across water, energy, and environment sectors throughout the UK. With an annual turnover surpassing £600 million, Mott MacDonald Bentley cements its position as a leader within the industry. The sustained, robust business performance creates an ideal environment for career growth.
MMB has successfully extended its contract with Thames Water for an additional five years. As the largest water and wastewater provider in the UK, Thames Water serves 15 million customers throughout London and the Thames Valley. This extension will carry the current agreement through to the end of AMP8 in March 2030. MMB is delivering work on three frameworks in the region, which sees us undertake a varied programme of water and wastewater non-infrastructure and infrastructure projects to improve the network.
Role Overview
As a Senior Quantity Surveyor, you'll work on a diverse portfolio of Thames Water projects that make a real difference to customers, communities, and the environment. These include clean water and wastewater treatment schemes, network infrastructure projects such as mains renewals, reservoir safety works, environmental improvement projects, and storm overflow reduction programmes.
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You will be involved throughout the entire project lifecycle, from early contractor involvement, optioneering, and tender negotiations through to design, procurement, construction, commissioning, and handover. You will help ensure projects are delivered safely, on time, within budget, and to the required quality standards.
Your Role As Senior Quantity Surveyor Includes
- Ensuring robust cost management processes are in place, providing accurate and timely reports, data, and analysis to support commercial decision-making.
- Leading procurement activities and supply chain engagement to secure best value and successful project outcomes.
- Managing commercial relationships with subcontractors and suppliers, including tendering, procurement, and performance management.
- Working closely with delivery teams to identify, implement, and monitor efficiency improvements throughout the project lifecycle.
- Actively challenging project teams to drive value for the client and stakeholders.
- Ensuring project teams understand contractual arrangements and commercial obligations.
- Supporting the delivery team to maximize opportunities and mitigate risks.
- Influencing and advising on contractual and commercial matters.
- Building and maintaining strong client relationships.
- Providing guidance, mentoring, and support to junior commercial staff.


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What You'll Need
- Degree in Quantity Surveying, Civil Engineering, or related discipline (preferred).
- Experience and knowledge of NEC contracts.
- Experience in Quantity Surveying.
- Experience leading the commercial management of multidisciplinary construction projects.
- Experience mentoring and developing junior commercial staff.
What's in it for you?
Enjoy a competitive salary and fantastic working culture, we offer a supportive environment and access to a wide range of financial, lifestyle, health, and wellbeing benefits.
To view our full range of benefits, please see the Bentley benefits brochure attached.
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