Associate Director - Project Controls - Nuclear at Mace · London

Mace combines construction expertise with consultancy to unlock potential in every person or project and redefine the boundaries of ambition. Our values shape the way we consult and define the people we want to join us on our journey.

The project: Are you looking for a career which is rewarding, at the cutting edge of project development and where you can really make a difference? Come and join our expanding Sizewell C (SZC) team and work on one of the most exciting and largest megaprojects in the UK, whilst being at the forefront of the UK’s climate change agenda and energy policy. Following on from the success of Hinkley Point C (HPC), the SZC project is a nuclear new build project in Suffolk, which has obtained planning approval and government financing support. The project has started construction and is now seeking private investment. When completed, it will provide dependable electricity to 6 million homes for 60 years, which along with renewables, will support Britain to achieve Net Zero by 2050.

The Transformation PMO Lead provides assurance, governance and oversight for business‑critical programmes at Sizewell C, embedding best‑practice standards, tools and processes, tracking key milestones and delivering robust reporting to support informed decision‑making across the Transformation Portfolio.

You’ll be responsible for:

• Supporting the Transformation Portfolio Manager with PMO activities including RAID management, reporting and maintaining a fully integrated SZC Transformation plan.
• Reviewing and validate programme and project plans, establishing a centralised, independent mechanism for visibility, tracking and escalation.
• Monitoring and confirming stage gates and key milestones across all strategic projects within the strategic plan.
• Managing portfolio-level reporting, including regular updates to the transformation SteerCo and escalation of risks or issues as required.
• Overseeing interdependencies across the transformation portfolio, proactively identifying and flagging potential conflicts or impacts.
• Managing the monthly portfolio dashboard and support the Transformation Portfolio Manager with portfolio communications, stakeholder engagement and ad-hoc reporting requirements.

You’ll need to have:

• Degree‑educated with strong foundations in project and portfolio management methodologies.
• Proven PMO leadership, setting delivery standards, governance frameworks and assurance across complex portfolios.
• Strong planning, RAID management and change control capability across interdependent initiatives.
• Excellent communication and influencing skills; professional project management certification desirable.

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.

We are also open to discussing part time, flexible, and hybrid working options if suitable with-in the role.

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