Lead Security Architect

Job Title: Lead Security Architect

Location: Remote with occasional travel to London

Duration: 12-Month Contract

Clearance: BPSS Required

Overview

We are supporting a major UK-based digital transformation programme seeking an experienced Lead Security Architect to provide leadership across enterprise security architecture.

This role will play a critical part in shaping secure system design, embedding security principles across delivery, and ensuring robust, scalable solutions in a complex, large-scale environment.

Role Responsibilities

Lead the security architecture and design of systems and services across a large digital estate

Develop, maintain, and review secure architecture patterns, standards, and principles

Ensure security requirements are embedded throughout the solution lifecycle

Engage with senior stakeholders to communicate security risks, trade-offs, and design decisions

Assess and provide guidance on complex and high-impact security risks

Contribute to enterprise architecture decisions, security strategy, and transformation initiatives

Research, evaluate, and apply emerging security technologies and innovative solutions

Act as a technical escalation point for architects and engineering teams

Support governance activities, including quality assurance of architecture deliverables

Promote and influence security best practices across technical and non-technical teams

Required Experience & Skills

Proven experience operating as a Security Architect or Enterprise Architect within large, complex environments

Strong capability in designing and reviewing secure systems at scale

Demonstrable experience managing and articulating complex security risks

Deep understanding of modern security architecture, principles, and technologies

Experience working on cloud-based or large-scale transformation programmes

Strong stakeholder engagement skills, with the ability to communicate effectively with technical and non-technical audiences

Desirable Experience

Experience working within public sector or healthcare environments

Knowledge of UK government or industry security standards and frameworks

Exposure to enterprise-level security strategy and governance

Experience contributing to or working within large-scale digital transformation programmes

Additional Information

This is an opportunity to play a key role in a high-impact programme, contributing to the delivery of secure, scalable digital services while working alongside senior stakeholders and multidisciplinary teams.

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