Location
London, with a minimum of 4 days per week onsite at Gatwick Airport

Hours
Full Time

Salary
Negotiable

About the Role
Arcadis is the world's leading company delivering sustainable design, engineering, and consultancy solutions for natural and built assets. Join us and play a key role in one of the UK's most significant aviation infrastructure programmes. We are seeking an experienced Senior Cost Consultant to support the delivery of the Gatwick Airport Northern Runway Programme, a major project that will enhance airport capacity, improve passenger experience, and drive long-term economic growth. Working within our Mobility Commercial Management team, you will provide expert cost management services across the project lifecycle, partnering closely with client teams, contractors, and delivery partners to ensure robust commercial performance and successful project outcomes. This role requires a strong onsite presence to engage directly with stakeholders and delivery teams.

Role Accountabilities
Leading cost management activities across major project packages from feasibility through to completion. Developing and managing cost plans, estimates, budgets, and financial reporting. Monitoring project performance, identifying risks and opportunities, and providing commercial insights to support decision-making. Supporting contract administration and commercial management activities under NEC contracts. Building strong relationships with clients, contractors, and project stakeholders. Providing guidance and mentoring to junior team members. Supporting governance, assurance, and reporting processes to ensure successful project delivery.

Experience
Significant experience delivering cost management services across major infrastructure projects. Experience within aviation, rail, highways, or other complex capital programmes. Strong knowledge of NEC3 and NEC4 contracts, including compensation events and change management processes. Demonstrable stakeholder management and client-facing experience. Ability to manage workstreams independently whilst contributing to wider programme objectives.

About you
Proactive and confident in engaging with multiple stakeholders. Strong leadership skills with the ability to mentor junior team members. Committed to delivering high-quality commercial outcomes and supporting project success. Willingness to work predominantly onsite at Gatwick Airport to maintain close collaboration with project teams.

Qualifications
Degree qualified in Quantity Surveying or a related discipline. Chartered status (MRICS) or working towards chartership. CSCS card holder, or willing to obtain.