Senior ICT Infrastructure Engineer

The Senior ICT Infrastructure Engineer is a hands-on, technically authoritative role responsible for the engineering, architecture, and governance of core endpoint, identity, and Microsoft 365 platforms within Reply's UK internal infrastructure. Operating across all support lines, the position combines day-to-day user support with expert-level incident resolution, security-focused configuration, and platform optimisation in a government and defence context. The role involves leading improvement initiatives, driving compliance with security frameworks, and acting as a senior technical reference point and mentor within the ICT team.