Principal Enterprise Architect - Companies House - G7
Government Digital & Data -
Full-time (Permanent)
£58,531 - £83,136
Published on
5 May 2026
Deadline
17 May 2026
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
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