Senior Quantity Surveyor (Commercial Lead) - Substation ProjectLocation: National Grid Substation, Melksham, Wiltshire Contract Type: Temporary / Contract Duration: 28 September 2026 - 18 December 2026 Hours: 45 hours per week (Monday to Friday, 08:00 - 17:00) Rate: 450 - 500 per dayOverviewWe are seeking an experienced Senior Quantity Surveyor to act as the Commercial Lead on a major substation infrastructure project based at National Grid''s Melksham site. This is an excellent opportunity for a commercially focused professional with significant experience in the energy, utilities, power, or infrastructure sectors.The successful candidate will be responsible for leading all commercial activities across the project lifecycle, ensuring robust cost management, contract administration, risk mitigation, and commercial governance in line with project objectives.Key ResponsibilitiesLead the commercial management of a major substation construction project.Manage project costs, budgets, forecasts, and financial reporting.Administer contracts and ensure compliance with contract terms and conditions.Prepare and review valuations, applications for payment, and final accounts.Identify, manage, and mitigate commercial risks and opportunities.Evaluate and negotiate variations, compensation events, and change control processes.Monitor subcontractor performance and manage subcontractor accounts.Produce accurate cost reports and commercial performance updates.Support project delivery teams ..... full job details .....