Experis UK
Lead Security Architect
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Location: Remote
Clearance: Active SC Clearance Required
Eligibility: Must not have spent more than 28 consecutive days outside the UK within the last 5 years.
Inside IR35: £500.00 - £550.00 pd
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.
This is a key role within a high-profile ERP transformation initiative involving complex data migrations, multiple source systems, and over 60 system integrations. You'll be responsible for ensuring security is embedded throughout the programme lifecycle, working closely with security, delivery, and integration teams to maintain compliance, governance, and best practice.
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.
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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.
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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.
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