Location
London

Hours
Full Time

Salary
Negotiable

About the Company
At Mace Construct, our purpose is to redefine the boundaries of ambition. We are innovators, trusted partners, and construction experts. Founded on a belief that the built environment sector could be more efficient, innovative, and responsible, we have built a reputation for delivering projects safer, faster, and greener. We transform industries, support communities, and leave legacies.

About the Project
Mace Construct has worked at Heathrow for more than 25 years, delivering over 400 live frameworks and projects across a 1,227-hectare campus. This extensive experience has developed deep operational, technical, and stakeholder knowledge, enabling delivery of change without interrupting airport operations. Our teams combine exceptional commitment to safety, smart construction methods, and a collaborative, client-focused approach to ensure success and long-term partnerships.

About the Role
The Senior Commercial Manager is responsible for cost management of complex work packages, managing risk and opportunity to ensure profitability. This role supports senior commercial team members in administering monthly commercial procedures such as Cost Value Reports. You will be responsible for two key projects:
- Chiller asset replacement and modernisation across Heathrow terminals 3, 4, and 5, including airside and landside locations.
- Terminal 4 BMS upgrade project to reconfigure existing BMS functionality and migrate HVAC controls to a single, modern, supportable, and secure platform.

What You’ll Be Doing
- Lead and manage a team of managers and professionals, ensuring structures, tools, and responsibilities are in place to deliver area plans and excellence.
- Address subcontractor contractual claims and changes.
- Produce monthly client applications.
- Approve invoices and issue Interim Payment Certificates (IPC).
- Draft technical and contractual correspondence.
- Commercially manage design consultants and specialist fees.
- Ensure site teams comply with commercial and legal procedures and agreements.
- Communicate effectively with clients and subcontractors.
- Focus on cost, schedule, risk, and performance management throughout the project lifecycle.
- Implement cost control integrating with planning/scheduling teams, risk analysis, earned value management, forecasting, and change management.
- Collaborate towards the net zero carbon transition, proactively identifying and managing associated carbon emissions and reductions during project delivery.

Experience
- Degree in Quantity Surveying, Commercial Management, or equivalent.
- CSCS certification.
- Strong financial skills and commercial acumen.
- Understanding of project construction plans.
- Experience in measurement to assess variations.
- Leadership experience managing a team.
- Experience with NEC 3 and NEC 4 contracts.

Nice to Have
- Experience working on airport construction projects.
- Experience managing major projects (£25-50m) or multiple projects.
- Experience managing projects at all stages (Preconstruction and Construction).
- Experience working with reputable main contractors.
- Formal qualifications such as MRICS, CIOB, or similar.

About You
Proactive, collaborative, and commercially focused with strong leadership skills. You are committed to delivering excellence and driving sustainable construction practices aligned with net zero carbon goals. You thrive in complex environments and have excellent communication skills to manage diverse stakeholders effectively.