Job Title: Lead Security ArchitectLocation: Remote with occasional travel to London Duration: 12-Month Contract Clearance: BPSS RequiredOverviewWe 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 ResponsibilitiesLead the security architecture and design of systems and services across a large digital estateDevelop, maintain, and review secure architecture patterns, standards, and principlesEnsure security requirements are Embedded throughout the solution life cycleEngage with senior stakeholders to communicate security risks, trade-offs, and design decisionsAssess and provide guidance on complex and high-impact security risksContribute to enterprise architecture decisions, security strategy, and transformation initiativesResearch, evaluate, and apply emerging security technologies and innovative solutionsAct as a technical escalation point for architects and engineering teamsSupport governance activities, including quality assurance of architecture deliverablesPromote and influence security best practices across technical and non-technical teamsRequired Experience andamp; SkillsProven experience operating as a Security Architect or Enterprise Architect within