Cyber Security Lead

🔐 Cyber Security Architect & Engineering Lead📍 Hybrid / Remote: Just 1 day per month in the London office💰 £75,000 - £85,000 + benefits🏢 Leading UK Professional Services FirmReady to take the technical lead on security?We're working with a leading UK professional services firm that is making a significant investment in its internal cyber security capability.They're looking for a Cyber Security Architect & Engineering Lead to play a key role in shaping the firm's future security architecture and engineering capability.This is a senior, hands-on position where you'll have the opportunity to design, build and improve security, rather than simply advise on it. You'll work across cloud, identity, data, endpoints, applications and networks, while also helping the business securely adopt AI and emerging technologies.🚀 What You'll Be DoingYou'll take technical ownership across a broad security landscape, including:Designing and implementing security architecture across Microsoft 365, Azure, Entra ID, Defender XDR, Sentinel and PurviewBuilding modern security controls around Zero Trust, secure-by-design and automationLeading architecture reviews and threat modelling for major projects and new technologiesTaking a lead role in the secure adoption of Microsoft 365 Copilot, AI agents and custom AI applicationsImproving security monitoring, detection engineering and incident responseSupporting complex and high-severity security incidents alongside internal teams and external SOC partnersStrengthening vulnerability and exposure management using threat intelligence, exploitability and business riskAutomating security processes using Python, PowerShell, Logic Apps, Azure Functions and APIsSupporting technical controls and evidence for ISO 27001 and Cyber Essentials PlusActing as a senior security SME and helping technology teams adopt better security engineering practices🧠 What We're Looking ForThis would suit an experienced Security Engineer, Security Architect or senior technical security professional who wants genuine ownership and influence.Ideally, you'll bring:Strong hands-on experience within a Microsoft-centric security environmentExcellent knowledge of Defender XDR, Sentinel, Entra ID, Azure, Microsoft 365 and PurviewExperience designing and implementing security controls, not just recommending themStrong knowledge across identity, cloud, endpoint, data, network and application securityExperience with threat modelling and security architecture reviewsExposure to detection engineering, incident response, threat hunting and vulnerability managementSecurity automation or scripting experienceKnowledge of Zero Trust, ISO 27001, Cyber Essentials Plus and NIST CSFThe ability to communicate technical security risk clearly to senior stakeholdersExperience within professional services, financial services or another regulated/client-confidential environment would be particularly useful.🤖 Security, AI & Emerging TechnologyOne of the most interesting parts of this role is the firm's investment in AI.You'll help define how technologies such as Microsoft 365 Copilot, AI agents and custom AI applications can be adopted securely, putting practical controls around identity, access, data and emerging security risks.It's a great opportunity for someone who wants to build experience at the intersection of Security Engineering, Architecture and AI Security.