**Job Description:****JOB TITLE:** Active Directory Support Specialist**LOCATION:** Client Site Aldermaston – Onsite 5 days per week (occasional WFH possible)**SECURITY CLEARANCE:** DV or willing to undergo DV vetting**ROLE OVERVIEW:**The Active Directory Specialist plays a pivotal role in supporting, maintaining, and enhancing a complex hybrid identity services environment that spans both On‐Prem Active Directory and Entra (Azure Active Directory). Operating within a high‐security, fast‐paced public‐sector setting, the role requires delivering expert 2nd/3rd line technical support while also contributing to long‐term service transformation, infrastructure modernisation, and operational automation initiatives.You will work at the centre of enterprise identity and access management, ensuring stability, security, and performance across critical directory services including AD DS, Group Policy, ADFS, AD Connect, PKI, and a broad range of supporting technologies. This includes managing dom...