Senior Infrastructure Engineer - Identity Access ManagementMilton Keynes (Hybrid 3 days PW)£550 - £600pd DOE (Inside IR35/Umbrella)6 month initial contractIdeally DV Cleared (Need to be eligible if not)My central Government client is looking for an experienced Infrastructure Engineer that has expertise in the design, operation and support of identity, access management and certificate services within a secure, government-assured environment.The role requires deep technical knowledge of on-premises Active Directory, Azure identity services and Public Key Infrastructure (PKI), including certificate lifecycle management and secure authentication.You will need to be skilled in various Identity Management technologies which form part of the current platform services, as set out below.Experience Required: Expertise in Active Directory design, administration and troubleshooting - Forests, domains, trusts, Group Policy, DNS, AD security hardening Strong experience with Microsoft Azure in enterprise environments - Azure AD / Entra ID, identity federation, RBAC, conditional access, Zero Trust technology Hybrid identity integration (on-prem AD Azure) Identity and access management best practice Support of secure, regulated platforms Public Key Infrastructure (PKI) expertise, including: - Certificate lifecycle management (issuance, renewal, revocation) - Integration of certificates with AD, Azure, servers, applications and services - Understanding certificate trust models, CRLs, OCSP and