Senior Quantity Surveyor

The Senior Quantity Surveyor plays a key role in the commercial management of major infrastructure works within a complex, multi-stakeholder environment. This position is responsible for cost planning, contract administration, change management, and financial reporting across the full project lifecycle, supporting the delivery of sub-programs such as Airfield Civil & Electrical, Interim Infrastructure, GHG, and Priority Projects.

Working within a progressive design-build environment, the Senior QS ensures accurate cost control, proactive risk management, and alignment with target price objectives, while supporting collaborative decision-making across design, construction, and commercial teams.

Responsibilities

Lead cost planning, estimating, and budgeting activities across assigned projects or sub-programs Manage and administer contracts, ensuring compliance with commercial terms and conditions Monitor project costs, forecasts, and cash flow, identifying risks and opportunities proactively Prepare, review, and negotiate change orders, variations, and claims Support development and validation of Target Price in a progressive design-build environment Conduct detailed cost analysis and provide recommendations to optimize value and reduce risk Collaborate with design, construction, and procurement teams to align cost, scope, and schedule Manage subcontractor commercial processes including procurement support, valuations, and final accounts Prepare and present commercial reports, including cost-to-complete, variance analysis, and risk registers Support dispute resolution processes and provide contractual guidance to project teams Ensure accurate and timely documentation of all commercial activities and correspondence Mentor and support junior commercial staff as required Desired Skills, Knowledge, Competencies and Qualifications Degree in Quantity Surveying, Construction Management, Engineering, or a related field 10+ years of experience in quantity surveying or commercial management within large infrastructure or construction projects Experience working in progressive design-build, design-build, or similar collaborative delivery models Strong knowledge of contract forms (e.

g., CCDC, NEC, FIDIC or equivalent) Demonstrated experience managing cost control, forecasting, and financial reporting on complex projects Proven experience with change management, claims, and contract negotiations Strong understanding of risk management and cost planning methodologies Experience working in multi-stakeholder or joint venture environments is an asset Advanced proficiency in cost management tools and Microsoft Office (Excel, Power BI preferred) Strong analytical, negotiation, and problem-solving skills Excellent communication skills with the ability to influence stakeholders at all levels Ability to work in a fast-paced, high-volume environment with competing priorities