Job Specifications
Great British Nuclear (GBN) is a new government arm’s length body supporting the delivery of Britain’s energy security and net zero, making sure that we can power Britain from Britain sustainably. It has been set up to turn nuclear ambition into reality.
GBN’s first step was to start the technology selection process for Small Modular Reactors (SMRs) in July. SMRs can potentially be quicker to deploy and less expensive to build than traditional nuclear power plants because they are smaller, have factory based modular manufacturing, and more flexible deployment options.
GBN is aiming to deliver fast, based on a supportive and collaborative culture which values equality and diversity and creates an inclusive workplace. It draws on deep nuclear expertise – its Executive Committee has over 100 years of nuclear experience in this country and abroad. And it can unlock billions of pounds of private and public investment from design to operation, helping to get sites ready for development, and working to grow manufacturing capacity and skills capability.
Our activities will be driven by our values, which are:
Trust - We prioritise safety, we act responsibly and with integrity.
Collaborative - We work as a team; we value diversity and expertise.
Challenge - We are curious and courageous in the way we think and act.
Care - We are thoughtful, inclusive and respectful of others.
Drive - We get things done and we make a difference.
If you have a disability and would prefer to apply in a different format or would like us to make reasonable adjustments to enable you to apply or attend an interview, please contact us at recruitment@greatbritishnuclear.uk and we will talk to you about how we can assist.
Head of Enterprise, Solutions & Data Architecture
Role Purpose
As a senior technology leader, the Head of Enterprise, Solutions & Data Architecture is accountable for defining and governing the architectural vision across a complex and fast‑evolving technology landscape. This role ensures that enterprise, solutions, and data architectures are aligned to organisational strategy, technically robust, secure, and scalable.
The postholder will play a pivotal role in shaping and delivering the organisation’s digital transformation—working closely with the Programme, the IT & Digital Team and Great British Energy – Nuclear's 3rd party IT delivery partner to ensure that major digital initiatives are delivered into the IT estate effectively, securely, and in alignment with enterprise standards.
Key Responsibilities
Strategic Architecture Leadership
Set and maintain enterprise architecture strategy, principles, and governance frameworks that ensure coherence and long-term scalability.
Champion architectural best practice across Digital, IT, IPTs, and partners, ensuring alignment to business objectives and organisational priorities.
Act as the authoritative decision-maker for architecture, balancing innovation, feasibility, cost, and risk.
Enterprise & Solutions Architecture Ownership
Lead the design and assurance of end‑to‑end solutions that integrate seamlessly with the existing and target-state architecture.
Provide technical leadership across large, complex programmes—ensuring that architecture decisions enable delivery and reduce long-term technical debt.
Evaluate, select, and govern technology platforms, tools, and services that best support business needs and operational resilience.
Data Architecture & Governance
Establish enterprise-wide data governance policies and ensure regulatory and organisational compliance.
Define data models, information flows, and integration patterns that underpin analytics, reporting, operational efficiency, and data quality.
Advocate for data‑driven decision‑making and ensure data is treated as a strategic asset.
Cloud & Digital Transformation Leadership
Drive adoption of modern cloud platforms including Microsoft 365, Azure, SaaS solutions, and related services.
Provide assurance and architectural leadership for digital transformation initiatives, ensuring alignment with enterprise, security, and compliance standards.
Lead the transition to modern, scalable, and secure digital services that support operational excellence.
Programme & IPT Delivery Support
Serve as a key architectural partner to IPT teams, providing direction, oversight, and challenge to ensure strong architectural outcomes.
Work with the Programme, Digital Team, and Konsolute to deliver major digital initiatives into the IT environment efficiently and securely.
Oversee architecture across project lifecycles—from shaping and design through implementation, optimisation, and transition to BAU.
Security, Risk & Compliance
Ensure all architectures and solutions follow security-by-design principles and align with relevant standards and frameworks.
Collaborate closely with Security teams to reduce architectural risk and protect organisational assets.
Maintain focus on secure, resilient designs that can withstand ev