Business Architect – Nuclear New Build Programme – £700‑£725 per day – Inside IR35
Hybrid working from a site near Leiston – 2‑3 days a week on site. 6‑month initial contract with extension highly likely.
We are supporting a leading organisation within the UK nuclear new build sector in the search for an experienced Business Architect to join a major, nationally significant infrastructure programme.
This is a high‑impact role at the heart of a complex, safety‑critical environment, shaping the business architecture that underpins large‑scale nuclear construction and long‑term operational capability. The successful candidate will likely come from a Business Analyst background and will have progressed into business architecture, enterprise change, or senior transformation roles within highly regulated industries.
The Opportunity
You will work closely with senior stakeholders, engineering teams, delivery partners, and suppliers to define and shape early‑stage project concepts, develop robust investment cases, and ensure business requirements are translated into safe, efficient, and deliverable solutions.
The environment is highly governed, structured, and safety‑driven, requiring strong analytical capability, stakeholder leadership, and a deep appreciation of regulated delivery frameworks.
Experience in nuclear, rail, defence, utilities, or other safety‑critical infrastructure programmes will be highly advantageous.
What You’ll Be Doing
* Leading stakeholder engagement to define project concepts, scope, dependencies, risks, and business outcomes
* Capturing, analysing, challenging, and prioritising business requirements aligned to programme and organisational strategy
* Developing business architecture artefacts to support early‑stage project definition and decision‑making
* Producing high‑quality investment cases and business cases with clearly articulated benefits and value drivers
* Working with internal teams and external delivery partners to develop and evaluate solution options
* Acting as custodian of business requirements across the full lifecycle, ensuring alignment to agreed outcomes
* Supporting business readiness, testing, and transition into operational use
* Ensuring solutions align with nuclear governance, regulatory obligations, and safety standards
What We’re Looking For
We are seeking candidates with strong Business Analyst foundations who have developed into broader business architecture or transformation roles.
Essential Experience
* Significant experience on large‑scale civil engineering, infrastructure, or construction programmes
* Background in highly regulated environments such as nuclear, rail, defence, utilities, or similar safety‑critical sectors
* Strong business process analysis, modelling, and design capability
* Proven experience engaging and influencing senior stakeholders
* Experience developing business cases and investment cases for complex programmes
* Understanding of formal project delivery frameworks such as PRINCE2 or equivalent structured methodologies
* Experience working with procurement processes including RFI and ITT stages and supplier evaluation
Desirable Experience
* Direct experience within nuclear new build or nuclear operational environments
* Exposure to enterprise architecture or structured business architecture frameworks
* Experience supporting major capital investment or national infrastructure programmes
Key Skills
* Strong analytical thinking and structured problem‑solving
* Ability to integrate processes, systems, and organisational change across complex environments
* Excellent stakeholder engagement and facilitation skills, including senior leadership engagement
* Ability to translate strategic objectives into clear, actionable business outcomes
* Strong commercial awareness with an understanding of cost, risk, and value trade‑offs
* Commitment to continuous improvement and constructive challenge
Personal Attributes
* Confident operating in complex, highly governed environments
* Calm and resilient under pressure, with strong attention to detail
* Credible with senior stakeholders across technical and business domains
* Collaborative, inclusive, and able to work across multi‑disciplinary teams
* Committed to safety, quality, and compliance in all aspects of delivery
This is a rare opportunity to contribute to one of the UK’s most significant infrastructure programmes, shaping the business architecture that underpins the delivery of safe, reliable, low‑carbon nuclear energy for the future.
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