Business Architecture Lead (Sizewell C)

The Sizewell C Jobs Service supports local people into exciting, long-term careers across our Project.

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

Contract: Permanent, full-time. Salary: Competitive dependant on experience, plus benefits.

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 and 15% employer contribution.

Closing Date: Thursday 14th May 2026.

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

We are looking for a strategic and delivery focused Business Architect to join the Sizewell C programme. This role is critical in shaping and aligning business processes, operating models, and organisational capabilities to support the successful delivery of one of the UK’s most significant low-carbon infrastructure projects. As a Business Architect, you will bridge the gap between strategy and execution, ensuring that business needs are translated into effective solutions that drive efficiency, consistency, and long-term value. You will contribute to the ongoing development of the Business Architecture capability, taking ownership of high-quality outputs and actively supporting a collaborative, high-performing team culture. You will operate with a service-driven mindset, delivering Business Architecture services aligned to the wider Digital Business strategy, while continuously developing your professional skills, awareness of industry best practice, and emerging techniques. You will act as a credible ambassador for Digital, building strong relationships with stakeholders, confidently presenting to senior audiences, and providing subject-matter expertise across your projects. You will uphold and role-model core values, mentor and support colleagues, and contribute to improving team standards, ways of working, and shared resources. You will take responsibility for effective stakeholder engagement, governance progression, and transparent documentation using agreed governance toolsets, ensuring accurate reporting of pipeline activity and proactive identification of risks or emerging demand.

About You

• Proven experience in a Business Architect or similar strategic role.
• Strong understanding of business architecture frameworks and methodologies.
• Experience working on large-scale infrastructure, construction, or energy projects.
• Demonstrated ability to design and implement target operating models.
• Excellent stakeholder engagement and influencing skills at senior levels.
• Strong analytical thinking and problem-solving capabilities.

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.

Key Competencies

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.
• Solidarity: 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. Clearer and faster decision making. Drive simplification at all levels.

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

For this role you must have evidence of right to work in the UK. As a project, we do not discriminate on the grounds of age, gender, race, colour, religion, disability or sexual orientation, and we welcome applications from all sections of the community.