Senior Quantity Surveyor (Mechanical bias) Specialist Ductwork Contractor (Northamptonshire) Salary: £60,000 – £80,000 + Travel Package OR circa £350 – £450 per day An exciting opportunity has arisen for either a Senior or Intermediate Quantity Surveyor to join a well-established and growing contractor delivering commercial fit-out and prison framework across Northamptonshire, Cambridgeshire and Leicestershire. This role offers stability, a long-term pipeline of work, excellent earning potential, and the opportunity to work within a secure and structured environment on interesting projects in the region. You will play a key commercial role across multiple projects, working closely with site teams, clients, and supply chain partners to ensure successful financial delivery from pre-construction through to final account. Responsibilities: Manage all commercial and cost aspects of commercial fit-out projects within a prison framework. Prepare and manage tender documentation, cost plans, and subcontract packages. Carry out valuations, cost reporting, forecasting, and cash flow management. Assess variations, change control, and compensation events. Negotiate subcontractor accounts and agree on final accounts. Work closely with project managers, clients, and framework stakeholders. Ensure compliance with contractual, commercial, and security requirements specific to custodial environme...