Role Title: Infrastructure Engineer Location: Manchester or Inverness, 5 days onsiteDuration: 13/03/2027£519.10 inside IR35 Per Day Role OverviewWe are seeking an experienced Senior Identity Infrastructure Engineer to support and maintain the core identity infrastructure platforms that underpin the organisation''s Identity and Access Management (IDAM) services.The successful candidate will be responsible for the administration, support, security, and continuous improvement of the Active Directory, PKI, DNS, Group Policy, and authentication infrastructure. They will work closely with the wider IDAM team, supporting critical identity services and providing L2/L3 operational support across the identity estate where required.This role requires a highly capable infrastructure engineer with deep expertise in Microsoft Active Directory and Public Key Infrastructure (PKI), combined with a strong understanding of enterprise identity technologies and authentication services.The position is based within secure facilities in either Inverness or Manchester, working closely with security, engineering, and IDAM teams to ensure the availability, resilience, and security of critical identity platforms.Key ResponsibilitiesActive Directory Infrastructure* Administer and maintain enterprise Active Directory forests, domains, and domain controllers.* Manage Active Directory Sites and Services, replication topology, trusts, and directory services infrastructure.* Administer AD-integrated DNS and ..... full job details .....