Senior Quantity Surveyor Location: Rickmansworth, London (Flexible Hybrid)Sector: Water and InfrastructureWe are seeking an experienced Senior Quantity Surveyor to join a growing commercial team supporting major water and infrastructure projects in the Rickmansworth area. This is an excellent opportunity to take ownership of the commercial performance of key projects while working within a collaborative and forward-thinking environment. You will be responsible for overseeing commercial activities across project lifecycles, ensuring effective cost management, contractual compliance, and successful project delivery. Key Responsibilities Take commercial responsibility for assigned projects and work packages.Collaborate with design, construction, and supply chain teams to monitor and control project costs.Build and maintain productive client relationships to ensure project and business objectives are achieved.Manage contracts, including the administration of contractual notices and correspondence.Prepare and issue subcontract documentation.Support the management and performance of subcontractors.Manage applications for payment, valuations, and final accounts.Produce accurate cost reports, budgets, forecasts, and commercial updates.Support and mentor junior members of the commercial team.Contribute to continuous improvement initiatives and commercial best practices.Maintain awareness of industry developments through ongoing professional development.Ensure a professional, ..... full job details .....