Rate: £450-£500 per day Umbrella PAYE Location: Cowley, Oxford (Oxfordshire) Working Pattern: Site-based - Monday to Friday, 08:00-16:30 IR35: Inside IR35 Length of Contract: Until 31 May 2027 Start: 23 November 2026 Are you an experienced Quantity Surveyor with strong NEC4 knowledge, looking for your next contract opportunity within the power sector? We are looking for a Quantity Surveyor to join a major infrastructure contractor''s Transmission and Renewables team on a National Grid 400kV substation project in Cowley, Oxford. You will report to the Senior Quantity Surveyor and be responsible for managing change under NEC4, helping to control project costs and maximise value. The position will also involve managing subcontractors and supporting wider commercial activities across the project, working closely with the project and site teams. Job Role Managing change under NEC4, working under the Senior Quantity SurveyorPricing compensation events and analysing programmes to quantify changeManaging subcontractors and suppliers, including quotes, contracts, monthly checks and final accountsSupporting commercial systems on site and building strong relationships with the project teamMonitoring project risks and keeping documentation up to dateProducing monthly financial reports and forecastsIdentifying opportunities to recover costs and improve project marginsSupporting wider commercial duties as directed by the Senior Quantity Surveyor Requirements Previous experience as a ..... full job details .....