Senior Quantity Surveyor - Permanent job - Upto £80K + Package - Site based in North London Your new company Our client is a privately owned main contractor, offering Quantity Surveyors long-term stability and a respected industry reputation. With a turnover near £500m, QSs'' join a major Tier 1 environment with strong commercial exposure. Their multidisciplinary portfolio-construction, civil engineering, offshore, fitout, and FM-gives QSs'' diverse project and sector experience. Projects span the UK and Ireland, with offices in key cities, enabling mobility and career growth across regions.Your new role The Senior Quantity Surveyor will manage project costs, contractual obligations, and change processes to ensure commercial efficiency. While preparing budgets, cost forecasts, interim valuations, and final accounts. They will procure and administer subcontractors, including assessing and certifying payments, and oversee variations, change control, and value engineering support. The role includes leading Extension of Time claims and Loss and Expense submissions and maintaining accurate commercial documentation while ensuring compliance with JCT and NEC contract procedures. They will identify and manage commercial and financial risks, produce monthly commercial reporting such as CVR''s and cashflow updates, and collaborate closely with project, design, site, procurement, finance, and supply chain teams. The role also requires supporting dispute avoidance and contributing to go