Business Architecture Lead in England

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.

Location: Based in Suffolk on a hybrid basis with travel to other offices as required.

Contract: Permanent, full-time.

Benefits include:

• Annual Leave: 28 days per annum, increasing to 30 days after 5 years of service, plus bank holidays.
• Bonus: 5% annual bonus.
• Pension Contributions: Defined Contribution Pension Scheme with up to 7.5% employee contribution 15% employer contribution.

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.

About the Role

As Business Architecture Lead, you will spearhead the business architecture function within Sizewell C, ensuring that strategic goals translate into coherent, well‑structured capabilities, operating models, processes, and change roadmaps. You will lead a team, work across all functions of the project (design, engineering, procurement, safety, regulation, operations), and provide leadership in ensuring that business change is holistic, aligned, and delivers value while meeting regulatory obligations.

About You

• Significant experience in business architecture or enterprise/business transformation in large, complex, highly regulated environments (e.g. nuclear, infrastructure, energy, defence).
• Demonstrable hands‑on expertise with architecture frameworks, capability modelling, value stream mapping and operating model design.
• Strong track record in leading teams, influencing senior executives, facilitating stakeholder alignment and managing cross‑functional dependencies.
• Excellent communication skills, able to present complex architectures clearly to non‑technical stakeholders.
• Good commercial awareness, linking capability investments to value, cost, schedule, and risk.

Why Join Us?

• Be part of one of the most important low‑carbon energy projects in the UK.
• Work in a mission‑driven environment that values innovation, integrity, and long‑term sustainability.
• Competitive salary, comprehensive benefits, and opportunities for career development.
• Flexible and hybrid working options.

Behavioural Competences

• Humility: Recognise the value brought from different cultures and experiences. Be open to others’ points of view and ideas, be willing to debate and to compromise.
• Positivity: Positively challenge poor quality and performance. Identify solutions at the lowest possible level. Encourage tier 1s and others to bring new ideas forward.
• Respect: Value the rules and environment in which we operate. Give and receive feedback with respect. Embrace and engage with new people and ideas. One team, working closely together and helping each other. Empowered teams always looking forward. Shared responsibility for delivering the project outcomes.
• Clarity: Communicate clearly and consistently. Promote collaboration and team alignment. Drive simplification at all levels.

If this sounds like the next step in your career, we’d love to hear from you.

At Sizewell C we encourage and embrace diversity and how it can improve our experience and performance at work. It is a requirement that those who join us have the right to work in the UK. Whilst sponsorship may be a possibility that we can explore, we are fully committed to local recruitment where possible, and those already holding the right to work in the UK. To be appointed to this role, you will need to meet the criteria for Security Vetting, which will, ordinarily, require you to have been a resident of the UK for at least three of the past five years.