Associate Project Director - TOC Assurance

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.

Hinkley Point C is helping to secure the UK’s low‑carbon energy future, delivering reliable, affordable electricity to millions of homes for generations to come. As part of this nationally significant programme, you’ll join a world‑class team driving innovation, collaboration and excellence across every stage of delivery. This is a unique opportunity to contribute to a project of unprecedented scale and complexity while developing your career.

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 and supplying reliable, clean electricity for at least 60 years.

This role focuses on detailed commercial and technical review of cost build‑ups, procurement strategies, and pre‑construction planning to ensure submissions are robust and aligned with programme objectives.

• Reviewing detailed TOC submissions including cost build‑ups and assumptions.
• Analysing contractor pricing, methodologies, and risk allowances.
• Identifying inconsistencies, risks, and opportunities within submissions.
• Supporting assurance reporting and governance processes.
• Supporting procurement activities including tender evaluation and clarification.
• Reviewing scope, BoQs, and pricing structures.
• Ensuring alignment between procurement outputs and TOC development.
• Assisting in contractor engagement and commercial discussions.
• Contributing to cost benchmarking and validation exercises.
• Supporting development of cost assurance methodologies.
• Assisting in monitoring cost trends and commercial risks.
• Interfacing with commercial, engineering, and delivery teams.
• Supporting workshops, reviews, and assurance panels.
• Providing clear and structured analysis to senior stakeholders.
• General understanding of the Capital Programme budget forecasting along with transition of programme elements back to influence of the costs and budgets.
• General understanding of the capital projects and related risk identification, quantification and analysis.
• General understanding of Quantitative Risk Analysis including Monte Carlo simulation for QSRA and QCRA.

• Degree in Quantity Surveying, Commercial Management, Civil Engineering, or related discipline.
• Relevant professional membership desirable.
• Strong understanding of cost planning and estimating.
• Detail‑driven with strong analytical capability.
• Attention to detail and structured approach.
• Ability to communicate complex information clearly.
• Recognise the value brought from different cultures and experiences.
• Be open to other’s points of view and ideas, be willing to debate and to compromise.

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.