Location
Central London

Hours
Full Time (flexible, part time and hybrid working options may be considered)

Salary
Negotiable

About the Role
Mace combines construction expertise with consultancy to unlock potential in every person or project and redefine the boundaries of ambition. This role supports the Ministry of Justice’s initiative to deliver four new prisons as part of a broader programme creating 13,000 modern prison places across England. Delivered through an Alliance model involving Mace, designers, and major UK contractors, the project promotes collaborative working to drive efficiency, cost savings, and enhanced value for the MoJ. As a Senior Commercial Manager, you will bring strong construction and NEC4 expertise, providing integrated commercial leadership, contract administration, and strategic advice. You will support project teams to ensure compliant, collaborative, and successful programme delivery.

You will be responsible for developing and maintaining strong working relationships with contractors and client teams, monitoring contractor performance and ensuring compliance with contractual requirements, supporting interim payment certification processes in collaboration with client cost consultants, administering contract changes and managing CEMAR workflows to meet contractual deadlines, contributing to benchmarking and monthly performance reporting, participating in commercial meetings, reviewing early warnings and compensation events, preparing recommendations for compensation events and client changing board submissions, conducting site visits to assess completed works and attend contractor progress meetings, engaging in client meetings to review proposed changes and entitlements, and providing commercial support and cost-effective solutions to internal teams and clients.

Our Values
Safety first - Going home safe and well: We champion a safe, diverse and inclusive working environment, understanding the importance of wellbeing in every team.
Client focus - Deliver on our promise: We own the quality of deliverables, strategic outcomes and build long term relationships with our clients.
Integrity - Always do the right thing: We influence positive outcomes within our industry, while always aligning with our compliance obligations.
Create opportunity - For our people to excel: We champion a continuous improvement culture throughout all activities, inspiring our people and teams to develop.

Mace is an inclusive employer and welcomes interest from a diverse range of candidates. Even if you feel you do not fulfil all the criteria, please apply as you may still be the best candidate for this role or another role within our organisation.

Experience
Proven success in commercial management within the construction sector. Strong contractual knowledge, particularly NEC4. Experience in contract administration, commercial leadership, and strategic advice. Demonstrated ability to monitor contractor performance and manage complex commercial processes.

About you
Excellent interpersonal skills with the ability to create, manage and maintain relationships at all levels, including director level. Confident communicator and collaborative team player. Accountable, results-driven, and committed to service excellence. Ability to provide commercial support and cost-effective solutions to internal teams and clients.

Qualifications
Relevant commercial management qualifications or equivalent experience preferred. Strong understanding of NEC contracts and construction commercial practices.