Permanent positionLondon (Victoria) - 5 days per week onsitep to £120,000 Head of Architecture and Security London (Victoria) Up to £120,000 Full-time, office-based We are looking for a technically credible, delivery-focused Head of Architecture and Security to join a Group ICT function operating across multiple European businesses. This is a senior leadership role combining genuine enterprise architecture authority with practical security ownership and hands-on delivery oversight - not a theoretical or governance-only position. Reporting to the Group IT Director and line managing the Technical Engineering Manager, you will set architecture direction across a hybrid estate, own application integration architecture across the Group, drive M365 and End User Computing strategy, and make proportionate security decisions that enable the business rather than block it. The organisation values pace, pragmatism, and outcomes. This is a role for someone who turns ambiguous problems into clear options and drives decisions through to delivered results. What you''ll do Establish and maintain clear architecture views across the Group''s hybrid environment - on-premise infrastructure, Azure cloud, Microsoft 365, identity, and security - that are genuinely useful to both engineers and senior business stakeholders. Own the Group''s application integration architecture: set integration standards, understand how systems across the businesses connect and exchange data, and challenge approaches