Lead Security Architect

The Opportunity

We're seeking an experienced Lead Security Architect to join a major government transformation programme, providing security leadership across a large-scale digital and data landscape.

Key Responsibilities

• Lead all security activities across the Digital and Data workstream.
• Define and implement security architecture aligned to organisational standards, policies, and governance requirements.
• Work closely with programme teams and system integration partners to ensure consistent security delivery across the end-to-end solution.
• Provide security guidance throughout design, delivery, testing, and implementation phases.
• Conduct security reviews, risk assessments, and architecture assurance activities.
• Ensure security controls are embedded across cloud, application, integration, and data platforms.
• Support security governance processes and stakeholder engagement across multiple teams.

Essential Skills & Experience

• Proven experience as a Security Architect within large-scale transformation programmes.
• Strong background delivering security architecture across complex enterprise environments.
• Experience working on major ERP, digital transformation, or cloud migration programmes.
• Ability to engage and influence senior stakeholders across technical and business functions.
• Strong understanding of security governance, risk management, and compliance frameworks.
• Experience working across multiple delivery teams, suppliers, and integration partners.

Desirable Skills

• Azure security architecture experience.
• Oracle Cloud Infrastructure (OCI) knowledge.
• Experience supporting complex data migration and integration programmes.
• Public sector or government programme experience.

What We're Looking For

You'll be a confident and experienced Security Architect who thrives in large, complex environments and can provide both strategic direction and hands-on security leadership.

You'll have a strong track record of delivering security outcomes on major transformation programmes and be comfortable navigating a wide range of stakeholders and technical challenges.