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 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.

Financial Accountant

Location: London, Ipswich or Manchester in the office 1-2 days per week, with monthly travel to London

Contract Type: Permanent, Full Time

Salary: £56,506 - £62,000 plus up to 5% bonus plus benefits including:

• Up to 5% annual bonus
• 28 days annual leave, plus bank holidays
• Opportunity to purchase extra holiday
• Generous pension scheme with up to 7.5% employee / up to 15% employer
• Opportunity to build your expertise, network and long term career within the energy sector
• Access to benefits portal where additional benefits can be purchased such as; private healthcare, electric car schemes, discounted gym memberships etc
• A collaborative environment that encourages innovation, continuous improvement and automation initiatives

Closing Date: Monday 19th of October 2026

Please note: We reserve the right to close this vacancy early if we receive a high volume of suitable applications. We encourage interested candidates to apply as soon as possible to avoid disappointment.

The Opportunity

We're looking for a qualified Financial Accountant to join our Financial Control team and help shape the future of financial reporting at Sizewell C.

This is a newly established role offering the chance to take ownership of working capital reporting and play a key role in delivering robust financial information that supports strategic decision making across a major infrastructure programme. Reporting to the Head of Financial Control, you'll work closely with teams across Finance including Tax, Treasury, Finance Business Partners and Financial Accounting Services.

This role would suit someone who enjoys getting into the detail of financial accounting, working capital management and inventory accounting, while also contributing to broader financial reporting, controls and process improvement initiatives.

Why Join Sizewell C as a Financial Accountant?

This is an opportunity to build deep expertise across key accounting areas within one of the UK's most significant infrastructure programmes.

You'll gain exposure to complex accounting matters, help shape new processes and controls, and work alongside experienced finance professionals in a collaborative environment. As the project continues to grow, you'll have the opportunity to broaden your knowledge across multiple finance disciplines while supporting a nationally important clean energy project.

You'll also benefit from a culture that encourages innovation, continuous improvement and professional development.

What You'll Be Doing

As Financial Accountant, you'll be responsible for:

• Owning and developing working capital reporting, analysis and KPI monitoring
• Leading month end working capital reporting, including variance analysis and management insights
• Managing and controlling inventory accounting processes and records
• Reviewing balance sheet reconciliations and resolving reconciling items
• Supporting monthly reporting, statutory accounts and regulatory submissions
• Providing technical accounting support, including IFRS assessments and accounting papers
• Supporting internal and external audits
• Developing and strengthening financial controls, policies and procedures
• Contributing to finance transformation and continuous improvement initiatives
• Working collaboratively with finance and business stakeholders across the project

What We're Looking For

We're particularly interested in hearing from candidates who have strong hands on financial accounting experience within complex operational businesses.

You'll ideally have:

• ACCA qualified (or equivalent) with up to 4 years' PQE
• Strong financial accounting experience gained within manufacturing, construction, infrastructure, energy or similarly asset intensive industries
• Proven experience of working capital accounting, including Accounts Payable, Accounts Receivable and Inventory
• Hands on month end close experience
• Strong understanding of Procure-to-Pay and Order-to-Cash processes
• Excellent IFRS knowledge
• Advanced Excel skills
• Experience working with ERP systems such as SAP or Oracle
• Strong attention to detail and analytical capability
• Experience of the Regulatory Asset Base (RAB) model would be advantageous but is not essential
• Degree in a related field is desirable, but not essential

Candidates from pure audit backgrounds are unlikely to be suitable for this role as we are looking for someone with practical commercial financial accounting experience and direct ownership of working capital accounting activities.

Apply Now

At Sizewell C, you'll be part of a project that will leave a lasting legacy for generations to come. If you'