Senior Quantity Surveyor

Location: London (Flexible Hybrid)
Work Type: Permanent
Salary: £75,000 – £80,000 per annum + benefits

Join a leading UK infrastructure and water‑sector delivery partner as a Senior Quantity Surveyor within their Commercial team. Reporting to the Managing Quantity Surveyor, you will take a leading role in the commercial management of major projects, driving cost control, financial performance, and contractual compliance across multiple work packages.

• Lead the delivery of quantity surveying and commercial management across projects and work packages.
• Take ownership of cost management, including forecasting, budgeting, and financial reporting.
• Provide commercial guidance and support to project teams, ensuring alignment with project objectives.
• Manage relationships with clients, subcontractors, and internal stakeholders to ensure commercial requirements are met.
• Administer the main contract, including issuing and responding to contractual notices, managing change, and mitigating risk.
• Prepare, review, and negotiate subcontract documentation and agreements.
• Oversee subcontractor performance, ensuring compliance with contractual and commercial obligations.
• Lead the preparation, submission, and agreement of interim applications, valuations, and final accounts.
• Produce accurate cost/value reports, cash flow forecasts, and financial performance analysis.
• Identify commercial risks and opportunities, developing and implementing mitigation strategies.
• Mentor and support junior commercial team members, fostering professional development.
• Promote best practice, innovation, and continuous improvement within the commercial function.
• Maintain strong working relationships and present a professional, solutions‑focused approach in all interactions.
• Undertake additional duties appropriate to the level and responsibility of the role.

• Proven experience as a Senior Quantity Surveyor (or established QS ready to step up) within construction, infrastructure, water, or a related sector.
• Strong knowledge of contract administration (e.g., NEC forms) and commercial management practices.
• Demonstrated ability to lead commercial activities on complex projects.
• Strong financial acumen with experience managing project cost performance independently.
• Excellent negotiation, communication, and stakeholder management skills.
• Ability to identify and manage commercial risks and opportunities effectively.
• Proactive leadership style with a collaborative and solution‑focused mindset.
• Commitment to continuous professional development; chartership (e.g. RICS) desirable or in progress.

Take the next step in your career by supporting the delivery of critical water infrastructure projects while playing a key leadership role within a high‑performing commercial team.