Senior Planning Manager - Nuclear Build

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.

• 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.

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 mega projects in the UK, whilst being at the forefront of the UK’s climate change agenda and energy policy.

Sizewell C will be a 3.2‑gigawatt power station generating low‑carbon electricity for around 6 million homes, playing a key role in our energy future, supplying reliable, clean electricity for at least 60 years. This is an exciting opportunity to be involved right from the start of such a historic project. Work to date has primarily focused on enabling works for site readiness.

Work is commencing with great speed in the following areas: road, rail, fencing, security, water systems, utilities, and the build of modular and industrial facilities.

• Directing key assignments with clear strategic alignment to organisational goals.
• Strengthening planning performance across sectors and hubs.
• Ensuring effective project and tender planning, scheduling and monitoring.
• Supporting due diligence, negotiations and long‑term business strategy.
• Upholding Mace values and drive positive impact for people, clients and planet.
• Fostering knowledge‑sharing, innovation and best‑practice application.
• Building strong stakeholder relationships through clear, collaborative communication.

• Membership of APM, RICS, CIOB, ICE, AACE, IRM, IEMA or equivalent demonstrable professional or personal development.
• Extensive experience in the successful planning of projects and programmes in the energy sector.
• Deep property or infrastructure project management expertise.
• Strong commercial and financial acumen.
• Extensive experience of using Primavera P6.
• NEC Contract experience.

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.