We''re working with a well-established rail infrastructure and civil engineering contractor to recruit a Senior Quantity Surveyor into a core commercial leadership role, based in West Yorkshire. This is a hands-on, influential position within the delivery team and will appeal to someone capable of driving commercial performance and supporting a developing commercial function.The RoleIn this role as a Senior Quantity Surveyor you will take accountability for the commercial oversight of a portfolio of reactive and minor project contracts, ensuring that work is delivered in line with financial targets, contractual requirements and governance standards. You''ll operate as a key commercial lead within the business, managing contractual administration, forecasting, reporting and proactive mitigation of commercial risk, as well as offering expert advice to operational teams.Key Responsibilities as a Senior Quantity SurveyorAssume end-to-end commercial leadership for a number of active contract portfolios, maintaining control of cost, margin and overall financial performanceGuide, mentor and support the wider commercial team, including regular one-to-ones, performance support and professional developmentServe as the principal commercial point of contact for project teams, advising on contractual interpretation, formal correspondence and dispute avoidanceCompile and present commercial and financial reports, including periodic cost reviews (CVRs), forecasts of final account values and