Principal Enterprise Architect - Companies House - G7

Locations: Cardiff or Edinburgh

As Principal Enterprise Architect (Data), you’ll play a leading role in shaping how trusted company data is designed, governed and reused at national scale, supporting services accessed by millions of users every day.

This is a senior technical leadership role where your decisions will directly influence:

• How data is treated as a core enterprise asset
• How legacy and modern systems work together
• How trust, interoperability and reuse are built into data by design

What you’ll be doing

As Principal Enterprise Architect (Data), you will:

• Set the enterprise‑level direction for data architecture and strategy
• Define and govern data models, standards and integration approaches
• Design architectures that work across legacy systems, cloud platforms and third‑party services
• Act as the authoritative voice on enterprise data, providing assurance and guidance across programmes and projects
• Enable secure, trusted and reusable data across the organisation
• Work closely with architects, delivery teams and senior stakeholders to reduce risk and improve data quality
• Influence long‑term transformation while supporting immediate delivery needs

Your technical impact

You’ll lead work across:

• Enterprise and domain data modelling
• Canonical data definitions and integration patterns
• Data governance, quality, ownership and lifecycle management
• APIs, distributed services and interoperability
• Secure handling of personal and sensitive data
• Alignment with legal, regulatory and policy requirements

You’ll also provide specialist advice on:

• Data migrations and legacy transformation
• Platform and tooling decisions
• Enterprise standards and architectural assurance

Who this role is for

This role would suit an experienced enterprise or senior data architect who:

• Has worked in complex, large‑scale environments
• Is confident setting direction and making architectural decisions
• Can influence senior stakeholders and explain complexity clearly
• Balances delivery needs with long‑term architectural vision

Experience with professional architecture qualifications and cloud data certifications is welcome.

Important information

• Security Clearance (SC) is required
• You must have lived in the UK for at least 3 of the last 5 years

Apply now

View the full job description and apply via Civil Service Jobs