Lead Security Architect

We are seeking an experienced Lead Security Architect to play a pivotal role in driving Microsoft Security solutions across large-scale enterprise engagements. This is a senior leadership position combining technical expertise, sales engagement, solution design, and delivery oversight.

This role sits at the heart of a high-growth Microsoft-focused security practice, working on complex transformation programmes across major UK and global clients.

Role Responsibilities

• Lead the design and delivery of Microsoft Security solutions across enterprise clients
• Own solutioning and support sales engagements, including large-scale presales opportunities (£3m-£6m+)
• Define and evolve go-to-market offerings and security capabilities
• Provide technical leadership across delivery teams, ensuring successful implementation
• Build strong relationships with senior stakeholders, clients, and partners
• Act as a thought leader in Microsoft Security, both internally and externally
• Drive capability development, including skills, certifications, and team growth

• Extensive experience in Microsoft Security across Defender, Sentinel, Entra, Purview, and cloud security
• Strong background in both presales and delivery within enterprise environments
• Proven ability to lead large-scale security transformation programmes
• Experience shaping and building new security offerings
• Strong stakeholder engagement skills, with the ability to influence at executive level
• Advanced Microsoft security certifications (e.g. SC-100, SC-200)
• Experience working within complex, matrixed organisations

Desirable

• Industry certifications such as CISSP, CCSP, CISM or similar
• Knowledge of compliance frameworks (e.g. GDPR, ISO27001, NIST)