Active Directory SME

6 days ago

Greater London, United Kingdom CBSbutler Ltd. Full time

Active Directory SME +6 months + +Fully remote working +SC cleared role +£575 - £625 a day Inside IR35 Skills AD design GPO Azure AD As the Active Directory SME, you will take ownership of the design, architecture, and operational excellence of Microsoft Active Directory services. You will act as the technical authority for AD-related activities, ensuring the environment remains secure, scalable, compliant, and aligned to organisational strategy. This role includes both hands‑on engineering and strategic project leadership. Key Responsibilities Core Technical Activities Design & Architecture Develop and maintain AD architecture for scalability, security, and high performance. Plan and implement domain and forest designs, trust relationships, and OU structures. Administration & Operations Manage domain controllers, replication, DNS, and DHCP integration. Create, maintain, and troubleshoot Group Policy Objects (GPOs). Monitor AD health, diagnose replication issues, and resolve authentication failures. Security & Compliance Implement enterprise AD security best practices (e.g., tiered admin model, secure LDAP). Perform audits of accounts, groups, and permissions. Support SOX, GDPR, and other compliance requirements through logging and access control. Identity & Access Management Manage full user lifecycle: provisioning, deprovisioning, and RBAC. Integrate AD with IAM and cloud platforms (Azure AD, Okta, etc.). Support SSO and federation (ADFS, SAML, OAuth). Migrations & Upgrades Lead AD migrations, domain/forest consolidations, and Windows Server upgrades. Plan schema extensions and ensure application compatibility. Disaster Recovery & Continuity Develop, document, and test AD backup and recovery processes. Maintain high availability and fail­over strategies for critical AD components. Automation & Scripting Use PowerShell to automate tasks, generate reports, and streamline operations. Build scripts for bulk user management, GPO deployment, and auditing. Collaboration & Support Partner with infrastructure, security, and application teams to deliver integrated services. Provide SME-level support for escalated incidents and complex service requests. Experience & Skills Required The ideal contractor will bring 5+ years of hands‑on experience in a similar AD-focused role, with expertise in: Active Directory Architecture & Replication GPO Design, Deployment & Troubleshooting DNS/DHCP integration with AD PowerShell scripting for automation and reporting ADFS configuration and federation support Azure AD - hybrid identity & sync (AAD Connect) Kerberos and NTLM authentication LDAP / LDAPS Active Directory Certificate Services (AD CS) It is essential for this role that you hold active SC clearance. If you'd like to discuss this Active Directory SME role in more detail, please send your updated CV to chloe.manerowski@cbsbutler.com and I will get in touch. #J-18808-Ljbffr

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