Major Water Infrastructure Project – Thames Water
The Opportunity
Tilbury Douglas is seeking an experienced Managing Quantity Surveyor to provide full commercial leadership on an in excess of £60m Thames Water major works Sewage Treatment Works (STW) upgrade. This is a high-profile Design & Build project delivered under NEC4 Option C, forming part of a long-term framework.
The role will take accountability for commercial strategy, governance, risk management, and financial performance across the full project lifecycle, from pre-construction through delivery and final account.
Commitment
* Pre-construction: Approx. 18 months, hybrid working based between site, home and Reading head office
* Construction: Approx. 36 months, 4 days per week site-based within the Thames Valley (M4/M40 corridor), 1 day home
Key Responsibilities
Commercial Leadership & Governance
* Internal and external stakeholder facing
* Provide overall commercial leadership for the project, ensuring financial control, governance, and compliance with company procedures.
* Protect the business from commercial and financial risk while maximising project value and margin.
* Act as the senior commercial interface with the client, project leadership & wider delivery team, and supply chain.
* Ensure accurate forecasting, cost reporting, and outturn financial performance throughout the project lifecycle.
Pre-Construction & Procurement
* Lead commercial input into pre-construction activities, including procurement strategy, risk management, and tender governance.
* Oversee the preparation and assurance of cost plans, estimates, Bills of Quantities, and tender submissions.
* Lead subcontractor procurement, including enquiry preparation, tender evaluation, commercial adjudication, and contract award.
* Develop and manage the project risk register, ensuring risks are appropriately valued, mitigated, and communicated.
Contract & Delivery Management
* Ensure robust administration of the main contract and subcontracts, including notices, compensation events, early warnings, and change control.
* Oversee the preparation and submission of main contract payment applications and ensure timely cash collection.
* Ensure subcontract payments are prepared and certified strictly in accordance with contractual terms.
* Lead and support the commercial management of subcontractor performance to ensure timely, compliant, and cost-effective delivery.
* Drive the successful agreement of final accounts with both client and supply chain.
Risk, Value & Dispute Management
* Lead commercial risk management, value engineering initiatives, and cost efficiency improvements.
* Proactively manage dispute avoidance and support formal dispute resolution where required.
Leadership & People Management
* Line manage and develop a commercial team of 5+ direct reports, fostering a high-performance and collaborative culture.
* Mentor and support the professional development of team members, including succession planning.
* Ensure effective communication and collaboration with operational, design, and planning teams.
What We’re Looking For
Essential Experience & Skills
* Proven experience working on major projects (£60m+) within a Tier 1 main contractor environment.
* Strong background in Design & Build delivery.
* Extensive experience managing live projects through to successful final account.
* In-depth knowledge of NEC3/NEC4 contracts, particularly Option C (Target Cost).
* Strong commercial acumen, with the ability to manage risk, cashflow, forecasting, and reporting at senior level.
* Demonstrated experience leading, mentoring, and developing commercial teams.
* Excellent negotiation, communication, and stakeholder management skills.
* Strong understanding of construction processes, measurement, valuation, and change control.
* Proficient in Microsoft Excel, Word, and PowerPoint.
Desirable
* Experience working on Thames Water and/or wastewater projects.
* Pre-construction estimating and procurement leadership experience.
* Familiarity with systems such as CEMAR, COINS, Dalux, and Primavera P6.
* Knowledge of CIS.
* Experience with dispute resolution procedures.
* Professional membership (or working towards) RICS or equivalent.
* EC PM accreditation.
What We Can Offer You
* Competitive salary and benefits package
* Car Allowance
* 26 days annual leave, with the option to buy or sell up to 3 days
* Additional long service leave at 3, 7, 10 years
* Private medical insurance (with family cover option)
* Life assurance
* Defined contribution pension scheme matched up to 8%
* Enhanced maternity, paternity, and parental leave
* Two paid volunteering days per year
* Flexible and agile working (role dependent)
* Employee Assistance Programme
* Professional membership fees paid
* Perks at Work employee discount scheme
* Flexible benefits including:
o Critical illness insurance
o Dental insurance
o Travel insurance
o Cycle to work scheme
o Retail vouchers and leisure discounts
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