The Opportunity Our client, a leading Tier 1 contractor, is seeking an experienced Senior Quantity Surveyor to join their growing commercial team within the water industry. Operating across major infrastructure and utilities frameworks, they deliver high-value projects supporting critical water and environmental services across the UK. This is a key role with responsibility for managing the commercial performance of projects from pre-construction through to final account. Key Responsibilities * Lead commercial management across multiple water infrastructure projects * Prepare and manage budgets, forecasts, and cost reports * Oversee procurement, subcontractor management, and contract administration * Manage risk, variations, and ensure contractual compliance * Work closely with project teams, clients, and supply chain partners * Mentor and support junior commercial staff About You * Proven experience in a Senior Quantity Surveyor role within a main contractor environment * Experience working on infrastructure or water/utilities projects (preferred) * Strong commercial awareness and negotiation skills * Knowledge of standard forms of contract (e.g. NEC/JCT) * Degree qualified (or equivalent) in Quantity Surveying or similar What’s on Offer * Competitive salary package * Clear career progression within a Tier 1 environment * Long-term work secured via major water frameworks * Supportive and collaborative team culture