AD Engineer – Contract

£600 per day | Inside IR35
London | 2–3 days per week onsite

We’re looking for an experienced AD Engineer to join a global enterprise IT environment, supporting and developing core infrastructure services across on-premise and cloud environments.
This is a hands-on role focused on the management, support and lifecycle of Active Directory and Microsoft infrastructure, with strong exposure to Azure and Entra ID.

Key Responsibilities

• Manage and support Active Directory, including OU design, GPOs, Group Policy Preferences, Domain Controllers and roles management.
• Manage core infrastructure services including DNS, DHCP, WINS and PKI/certificate services.
• Support and manage Azure and Microsoft Entra ID services, including:
  • Conditional Access
  • Role and Group Management
  • Entra Connect
  • Microsoft Authenticator
  • On-premise Active Directory integration
  • Group Policy and Intune policies
  • Defender for Identity
• Support SSO and authentication services across the enterprise.
• Perform server migrations, upgrades, security patching and application migrations.
• Troubleshoot complex infrastructure issues and proactively identify potential service-impacting problems.
• Work closely with Information Security to maintain infrastructure compliance.
• Develop and maintain technical documentation, procedures, RCAs and knowledge articles.
• Lead project and BAU activities, working with internal teams, suppliers and wider stakeholders.
• Provide technical leadership, mentoring and guidance to other team members.
• Contribute to infrastructure roadmaps, technology lifecycle management and service improvements.