Estimating Assistant

London, GB, EC2R 7BP
Bristol, GB, BS32 4TP
Felixstowe, GB, IP10 0DD
Manchester, GB, M1 4HN
Leiston, GB, IP16 4EW

Career Area:
Supply Chain

Sizewell C’s business is to design, finance, construct, commission, operate, maintain, and eventually decommission the nuclear power plant and related infrastructure at Sizewell C in Suffolk. Overall, whilst the Company is in the construction phase, the Boards’ principal focus is on the development and construction of Sizewell C on time, on budget and to the highest quality and safety standards. The Company is maturing to meet all these requirements.

Sizewell C is economically regulated by OFGEM under the Regulated Asset Base (RAB) model similar to other UK electricity distribution networks and Thames Tideway.

Sizewell C construction strategy is to replicate the design of Hinkley Point C, using the majority of the same supply chain, but innovating in the way it is delivered to achieve savings in time and cost of around 20%. The CCO will need to be guided by and incorporate lessons learned from the Hinkley Point C commercial delivery to achieve Sizewell C’s ambition.

Following Financial Completion and Revenue Commencement, Sizewell C is fully funded and is owned by;
The Secretary of State for Energy Security and Net Zero representing HM Government, La Caisse, Centrica, EDF and Amber Infrastructure.

Sizewell C is entering an exciting phase of growth as we mature into an independent organisation and continue building one of the UK’s largest and most important energy projects. We are now recruiting for the below position.

Location: London, Bristol, Manchester, Suffolk – hybrid, 3 days per week in the office

Contract: Permanent, full-time.

Closing date: Friday 31st July 2026

• Bonus: 5% annual incentive
• Pension:
  Up to 7.5% employee contribution / 15% employer contribution
• Holiday: 28 days plus bank holidays

As the Estimating Assistant you will be reporting to Senior Quantity Surveyors in undertaking a range of quantity surveying activities covering all aspects of civil works. This role would suit someone early in their commercial or quantity surveying career who has strong administration skills and wants to develop broader commercial management experience and/or pursue a formal surveying qualification within a major infrastructure project.

You will support the Civil Works Quantity Surveying Management Team with:

• Undertaking measurement and billing of quantities in accordance with standard methods of measurement.
• Details of information used and assumptions made when undertaking measurement tasks
• Codifying measured works items to prescribed cost and work breakdown structures.
• Collecting, analysing and reporting cost data, including taking actions to address source data.
• Collating and managing contemporary records.
• Assisting in the preparation of estimates and cost reports including the collation of supporting documentation.
• Supporting the tender process including financial assessment and the preparation of Tender Reports.
• Assisting project teams in the contract administration and commercial management of projects within the Civil Works programme.
• Budget monitoring and forecasting, cost auditing, progress monitoring and reporting.
• Actively supporting teams in the timely delivery of commercial management and assurance.
• Assisting senior team members with the legal and contractual issues on projects.
• Document management and control, including the maintenance of registers and schedules.
• Arithmetic and other basic checking of work undertaken by others.
• Working to budgets and timescales as agreed from time to time with senior managers.
• Supporting and working collaboratively with the wider team.
• Maintain and administer commercial management systems, including: CEMAR, SAP and Candy.
• Support successful contract delivery and help manage the commercial impact of contracts on the wider Sizewell C project.

It is recognised that the successful candidate may have limited experience. What is more important is the ability to work in a fast-paced environment and a willingness to learn. On the job training will be provided and support should you wish to pursue a…