Senior Quantity Surveyor - Major Water Infrastructure project!Strategic Commercial Lead Water and Utilities SectorA client of mine is seeking a Senior Quantity Surveyor (SQS) to join a leading infrastructure specialist delivering a critical water-based construction project in the Swindon region. This is a high-impact role managing the commercial health of large-scale utilities projects, including pipelines, pumping stations, and treatment works.Rate: 490 per day (Umbrella)Location: Swindon (Site-based with Hybrid flexibility)Work Pattern: Hybrid (3 Days On-Site / 2 Days Working from Home)Schedule: 40 Hours per Week 08:00 AM StartSector: Water Infrastructure / Civil EngineeringThe Opportunity: Driving Commercial ExcellenceAs a Senior Quantity Surveyor, you will lead the commercial management of complex water infrastructure packages. You will be responsible for protecting the project''s margin while ensuring all contractual obligations are met under the NEC4 (or NEC3) framework.Key Responsibilities and NEC DutiesNEC Contract Administration: Take full ownership of the NEC3/NEC4 contract.Compensation Events (CEs): Identifying, notifying, and quoting for changes in scope.Early Warning Notices (EWNs): Proactively managing the Early Warning register and leading Risk Reduction meetings.Payment Assessments: Ensuring monthly assessments are submitted in accordance with the contract''s "Period for Payment."Cost Management and CVRs: Leading the monthly Cost Value Reconciliation (CVR) pr