Infrastructure Engineer - (3rd Line Infrastructure)Southampton City Council is recruiting a highly experienced Infrastructure Engineer to provide third line (Level 3) technical expertise across a complex, enterprise-scale infrastructure environment. This role is aimed at seasoned infrastructure engineers with strong hybrid Microsoft and data-centre experience, typically gained in large corporate or public-sector environments.About the role3rd Line Infrastructure Engineer supporting a hybrid Microsoft and datacentre environment. You will lead on complex incident resolution, infrastructure improvements, automation and lifecycle management across critical council services.This is a hands-on third line role supporting systems that underpin vital council operations and frontline public services. You will be expected to troubleshoot complex cross platform issues, implement service improvements, and ensure infrastructure platforms remain secure, resilient and fully supported.Key responsibilities: Provide third line (Level 3) technical support and problem resolution across infrastructure platforms.Support and enhance a hybrid Microsoft estate including Microsoft 365, Azure, Entra ID and Exchange Hybrid.Administer and maintain on prem Active Directory, Azure AD Connect, DNS, DHCP and Group Policy.Support Windows Server infrastructure () and Linux server estates.Manage and support virtualisation platforms including VMware and Hyper-V.Support end-user and server patching via SCCM ..... full job details .....