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# Principal Architect (DV Security Clearance)

- **Company:** CGI Group Inc.
- **Location:** Chippenham, UK
- **Salary:** £83,430.0
- **Contract:** Permanent contract
- **Skills:** Agile Methodology, Artificial Intelligence, DevOps, Devsecops
- **Published:** September 14, 2026
- **Apply:** https://www.adzuna.co.uk/jobs/details/5883469817

## About the Role

* Proven experience as a Principal Architect, Lead Architect, Chief Architect, Design Authority or Senior Solution Architect on complex software intensive systems.
 * Experience leading, coaching or developing architects, technical leads, engineers or multidisciplinary technical teams.
 * Experience with people management, technical capability development, communities of practice, recruitment or succession planning.
 * Experience owning or shaping the architecture of systems involving scientific, engineering, mathematical, physics based or algorithmic components.
 * Experience establishing architecture governance, technical standards, design assurance and decision making frameworks.
 * Experience working in secure, regulated or operationally sensitive environments.
 * Strong senior stakeholder engagement skills, including with executive, senior military or equivalent client stakeholders, including the ability to explain complex technical issues clearly to non technical audiences.

Desirable experience:

 * Defence, maritime, submarine, nuclear, targeting, command and control or mission critical systems experience.
 * Experience with legacy system sustainment, modernisation, transition or service evolution.
 * Experience working in Agile, DevOps or DevSecOps delivery environments.
 * Experience introducing innovation, automation, AI, data exploitation or improved tooling into secure environments.
 * Experience supporting bids, solution shaping, technical strategy or client advisory activity for defence clients.

#LI-FP1

 * Design System
 * Leadership
 * Solutions Architecture
 * Stakeholder management
 * Technical Architecture

Together, as owners, let's turn meaningful insights into action.

## Description

* Provide principal architectural leadership and act as technical authority or design authority for a complex, secure defence software system.
 * Own and evolve the overall solution architecture, ensuring it remains resilient, secure, maintainable and aligned to operational needs.
 * Work with senior stakeholders both internal and external to the project, ensuring that the project and solution is accurately represented from a technology and methodology perspective.
 * Lead, coach and mentor architects, technical leads, engineers and subject matter experts, building technical capability and confidence across the team.
 * Establish and run effective architecture governance, including design principles, decision records, technical assurance, review forums and escalation routes.
 * Understand and interpret requirements involving complex mathematics, physics, scientific modelling and operational constraints.
 * Translate client needs, mission outcomes and technical drivers into coherent architectural designs, roadmaps and delivery priorities.
 * Guide architectural decisions across software, integration, data, tooling, environments, deployment approaches and service operations.
 * Support delivery methodology, helping teams improve engineering practices, quality, governance, DevSecOps adoption and ways of working.
 * Ensure solutions meet security, assurance, resilience, maintainability and operational continuity requirements.


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