Senior Quantity Surveyor | Hertfordshire (Office Based) | Main Contractor Join a long-established design & build contractor delivering technically complex commercial and residential schemes across London and the South East. You'll take ownership of full project commercial management from early-stage budgets and procurement through to final accounts supporting a portfolio of live projects ranging in value from £2m to £10m. This is a hands-on, standalone role working closely with the Construction Director and project teams, offering autonomy, visibility, and the opportunity to influence both project and business outcomes. The Role • Full commercial management of residential and self-storage projects (£210m) • Prepare and manage construction budgets and allocate costs across work packages • Procure subcontractors, plant, and materials, and assist in consultant procurement • Agree main contract terms and subcontract agreements • Manage client and subcontractor valuations, variations, and payments • Monitor costs and produce monthly forecasts and cost reports • Lead on final accounts for both client and subcontractors • Provide commercial input on design development and value engineering • Attend and contribute to design and pre-construction meetings • Produce weekly commercial summaries for review with the Chief Executive • Prepare build budgets and tenders for upcoming projects, including estimating input What they're looking for • Proven experience as a Quantity Surveyor or Senior Quantity Surveyor (main contractor or developer) • Background in residential, commercial, or light industrial projects • Strong understanding of procurement, cost control, and contract administration • Confident managing multiple live projects and tight deadlines independently • Commercially astute, technically capable, and comfortable reporting at director level The Company This is a long-established design & build contractor based in Hertfordshire, delivering self-storage, commercial, and mixed-use developments across London and the surrounding counties. The business combines practical construction expertise with strong technical and design capability, operating a hands-on, director-led model that values autonomy, initiative, and quality delivery. With several new projects launching, this is an excellent time to join a growing team in a commercially critical role. Package • Competitive salary & a car allowance • Performance-linked bonus scheme • Contributory pension and health plan • 21 days holiday bank holidays (3 reserved for Christmas) • Office-based (Hatfield) with reimbursed travel to sites • Full expenses covered for work-related travel Also known as: Senior Quantity Surveyor, Lead Quantity Surveyor, Commercial Manager Interested? Michael Ogunyankin (phone number removed) | (url removed) No pressure if this sounds like you (or someone you rate), get in touch