Data Architect

Sizewell C Limited; Greater London; On-site; GBP 90,000 - 130,000; Full time

Job summary

Sizewell C Limited is seeking an experienced Enterprise Data Architect to join the Civil Works Alliance (CWA) team supporting Sizewell C. You will define data structures, ownership, and lineage, translating complex requirements into architecture models and documentation.

The role emphasizes Azure cloud architecture, data platforms, and integration across business, IT, and delivery teams. Experience with BIM, digital twins, and common data environments is valued.

Qualifications

• Experience building and maintaining enterprise data architecture in large organisations.
• Strong data modelling capabilities and knowledge of data domains, lineage and governance.
• Solid understanding of Microsoft Azure data and analytics services.
• Proven ability to translate complex business requirements into architecture models.

Responsibilities

• Develop and maintain current-state, transition-state and target-state enterprise data architecture.
• Define data domains, entities, ownership, and lineage across systems.
• Create conceptual and logical data models with cross-functional teams.
• Map data relationships across data, applications, and technology.
• Model Azure environments including data platforms, storage, and security aspects.
• Support architecture reviews and ensure traceability of data requirements.

Skills

Enterprise data architecture

Azure cloud

ArchiMate 3.2

BPMN

UML

Sparx Enterprise Architect

Prolaborate

XML/XMI

Data governance

Data quality

Education

Master's degree or equivalent in a relevant field

Tools

Sparx Enterprise Architect

Prolaborate

ArchiMate

XML/XMI

Job description

Data Architect Opportunity with the Civil Works Alliance (CWA), Supporting Sizewell C

As part of the CWA (Civil Works Alliance), you will support the building of Sizewell C. Sizewell C will be a 3.2-gigawatt power station generating low-carbon electricity for around 6 million homes and will play a key role in our energy future, supplying reliable, clean electricity for at least 60 years.This role will be within theCWA Wide Section.

What will you do?

The Enterprise Data Architect will work within the Enterprise Architecture function to develop and maintain CWA's enterprise data architecture and its relationships with business, application, technology and implementation architecture.

The role will work closely with the Enterprise Architect Lead, Data, IT, Digital, PMO, business and delivery teams to define data structures, domains, ownership, flows, lineage, authoritative sources and integration dependencies, and to translate these into clear architecture models and documentation.

A strong understanding of Microsoft Azure cloud architecture is essential, particularly the relationship between Azure services, enterprise data platforms, applications, integration, identity, security, networking and storage.

Experience of major construction and infrastructure environments and associated technologies such as BIM, digital twins, common data environments and asset information systems will be advantageous.

Principal Accountabilities, Activities and Decisions

The Enterprise Data Architect will:

• Develop and maintain current-state, transition-state and target-state enterprise data architecture.
• Define and maintain data domains, entities, objects, ownership, stewardship, authoritative sources, systems of record, lineage and data flows.
• Develop conceptual and logical data models in collaboration with Data, IT, Digital, PMO, business and delivery teams.
• Map relationships between data, business capabilities, processes, applications, integrations and technology components.
• Develop application and technology architecture views where required to support data architecture and traceability.
• Model Microsoft Azure environments and services relevant to enterprise data, including data platforms, integration, storage, identity, security and networking.
• Assess the data and architecture implications of new systems, cloud services, integrations, technology changes and project initiatives.
• Support the architecture of enterprise data platforms, including data storage, processing, integration, analytics and information exchange capabilities.
• Maintain traceability between requirements, data, applications, technologies, integrations, work packages, deliverables and implementation milestones.
• Capture and structure architecture and data requirements and support their validation and traceability.
• Identify data, application, integration and technology dependencies, gaps, duplication, risks and inconsistencies.
• Assess project and solution designs against agreed enterprise architecture principles, standards and data architecture requirements.
• Support architecture reviews, design assurance and implementation planning.
• Develop architecture models using ArchiMate 3.2, BPMN and UML as appropriate.
• Use Sparx Enterprise Architect to maintain architecture and requirements content and Prolaborate to publish and review architecture information.
• Support architecture model exchange using XML and XMI where required.
• Maintain architecture repositories, modelling standards, naming conventions, metadata and controlled documentation.
• Engage with stakeholders to gather information, validate architecture models and communicate architecture decisions and dependencies.
• Support data architecture relating to construction technologies including BIM platforms, digital twins, common data environments, asset information models and project delivery systems.
• Contribute to the continuous improvement of CWA architecture standards, modelling practices, governance and repository quality.

What are we looking for?

The role requires strong enterprise data architecture, data modelling, cloud architecture and analytical skills, together with the ability to understand relationships across applications, technology, integrations and implementation.

The candidate must be able to translate complex business and technical information into clear, structured and maintainable architecture models and documentation.

• Relevant degree, professional qualification or equivalent practical experience in enterprise architecture, data architecture, information systems, computer science, systems engineering, engineering or a related discipline.
• Demonstrable experience developing and maintaining enterprise data architecture in a complex organisation, programme or project environment.
• Strong understanding of data architecture, including data domains, entities, ownership, stewardship, authoritative sources, lineage, flows and integration dependencies.
• Experience developing conceptual and logical data models.
• Strong understanding of Microsoft Azure cloud architecture and its role within an enterprise technology environment.
• Understanding of Azure data architecture, including data platforms, storage, processing, integration and analytics services and their relationships with applications, identity, security and networking.
• Ability to assess the implications of Azure and cloud-based solutions for enterprise data, applications, integrations, technology dependencies and implementation.
• Understanding of cloud service and deployment models, including SaaS, PaaS, IaaS and hybrid architectures.
• Experience modelling application landscapes, integrations and technology dependencies.
• Understanding of systems integration, APIs, interfaces, middleware and information exchange.
• Experience with requirements capture, management and traceability.
• Experience developing current-state, transition-state and target-state architecture views.
• Experience using ArchiMate or an equivalent enterprise architecture modelling notation.
• Working knowledge of BPMN and UML.
• Ability to analyse complex information and represent it clearly through models, diagrams and structured documentation.
• Strong stakeholder engagement and communication skills.
• Ability to work collaboratively across Enterprise Architecture, IT, Digital Engineering, Data, PMO and delivery functions.
• Experience using Sparx Enterprise Architect and Prolaborate.
• Experience creating and maintaining ArchiMate 3.2 models.
• Experience working with XML and XMI.
• Knowledge of TOGAF or another recognised enterprise architecture framework.
• Practical experience working with Microsoft Azure data, integration or analytics services.
• Experience with enterprise data platforms, data governance, data quality, master data management or metadata management.
• Experience working within major infrastructure, engineering, construction, nuclear, energy or transport programmes.
• Understanding of BIM, ISO 19650, digital twins, common data environments and asset information management.
• Experience developing architecture roadmaps, transition architectures or implementation plans.

What we will offer you?

The CWA is a single delivery organisation made of up of the client (Sizewell C) and three parent companies - Balfour Beatty, Bouygues and Laing O'Rourke - which offer industry leading packages including market leading salaries, generous annual leave entitlements, pension scheme and other flexible benefits.

About Us

The CWA celebrates the creativity and innovation that comes from a diverse workforce, and we welcome applications from people of all backgrounds — especially those from under‑represented communities. Our project is built on five core values: Humility, Positivity, Respect, Solidarity, and Clarity.
By joining us, you'll be encouraged to bring your whole self to work, speak up, and share your ideas. We encourage applications from all suitably qualified candidates, regardless of gender, race, disability, age, sexual orientation, gender reassignment, religion or belief, marital status, or pregnancy and maternity.
We are committed to protecting your privacy. If you decide to apply, please avoid including sensitive personal data in your CV.