Enterprise Data Architect SMR Program

Originally named, Great British Nuclear, Great British Energy – Nuclear is an arm’s length body of the Department for Energy Security and Net Zero, dedicated to supporting the development and deployment of new nuclear technologies in Great Britain. We play a crucial role in advancing nuclear new build, ensuring the UK’s energy security and achieving net-zero carbon emissions. Great British Energy – Nuclear focuses on fostering innovation, facilitating investment, and coordinating efforts across the nuclear industry to build a resilient and sustainable energy future.

Great British Energy – Nuclear’s first step was to start the technology selection process for Small Modular Reactors (SMRs) in 2023. 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. In June 2025, Great British Energy – Nuclear announced that Rolls-Royce SMR had been selected as the preferred bidder to build the UK’s first SMRs, following a technology selection process that began in 2023.

Great British Energy – Nuclear is aiming to deliver fast, based on a supportive and collaborative culture which values equality and diversity and creates an inclusive workplace. We draw on deep nuclear expertise – our Executive Committee has over 100 years of nuclear experience at home and abroad. GBE-N will 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.

Collaboration – 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 recrui and we will talk to you about how we can assist.

Job Profile:

The Data Architect supports the Lead Data Architect in designing, developing and maintaining the organisation’s enterprise data architecture, data models, metadata structures, and ontologies. This role contributes directly to ensuring high‑quality, secure and structured data flows across engineering, regulatory, operational and business systems within the GBE‑N SMR programme.

The Data Architect operates with growing autonomy, handling defined architectural tasks and work‑packages while escalating complex or strategic matters to the Lead Data Architect. The role will steadily increase in scope as capability deepens, providing a clear development pathway toward more senior architectural responsibilities over time.

You will work closely with engineering, systems, digital delivery and information management teams to support lifecycle‑wide data needs—from concept design through to commissioning and operations of a first‑of‑a‑kind UK SMR. The role requires strong analytical ability, evolving architectural judgement, and comfort working within a fast‑paced and technically complex environment.

Responsibilities

Working under the direction and mentorship of the Lead Data Architect:

• Contribute to the design and documentation of enterprise data architectures, domain models, taxonomies and metadata standards that support the SMR Project’s operational, regulatory and safety requirements.
• Support the identification and prioritisation of information needs across engineering, regulatory, operational and business domains.
• Develop and maintain domain data models—structured and unstructured—ensuring consistency, integration readiness, and alignment with enterprise requirements.

Ontology & Semantic Modelling

• Assist in designing ontology structures and contribute to semantic modelling activities that promote data reuse, interoperability and traceability across systems.
• Support iterative refinement of…