Job description:The Quantity Surveyor will manage all commercial, contractual, and cost control activities after contract award for district cooling underground piping and infrastructure projects.The role focuses on monthly valuations, variation management, subcontractor payments, cost tracking, claims support, and final accounts for projects involving chilled water networks, chambers, mechanical works, and civil and landscape reinstatement.Key Responsibilities:1. Post-Contract Cost Control & ValuationsPrepare monthly progress valuations / IPCs based on site measurements.Maintain cost vs budget tracking, cash flow forecasts, and earned value.Monitor cost overruns, productivity losses, and scope creep.Prepare cost reports for management (CVR / WIP).2. Measurement & VariationsMeasure executed works for:Excavation, shoring & backfillingChilled water pipe laying (steel, HDPE, pre-insulated)Valve chambers, thrust blocks, anchor blocksMechanical works, testing, flushingReinstatement & asphalt worksIdentify, price, submit, and negotiate variations & change orders.Maintain variation logs and approvals tracking.3. Contract AdministrationManage post-contract correspondence, notices, and claims.Assist with EOT, prolongation, and disruption claims.Ensure compliance with contract conditions (FIDIC / bespoke forms).Support dispute resolution and commercial negotiations.4. Subcontractor Commercial ManagementMeasure subcontractor works and prepare monthly payment certificates.Track subcontractor variations, back-charges, and retention.Control material reconciliation vs invoicing.5. Final Accounts & Close-OutPrepare and agree final accounts with clients and subcontractors.Close all variation, claims, and reconciliation registers.Support project financial close-out and handover.