Senior Active Directory Engineer | Contract | London (Office, 4 days)

We’re hiring a senior AD specialist to take ownership of complex enterprise environments, driving tiering, security remediation, and architectural improvements across a large-scale estate. You’ll operate at both design and hands-on delivery level, working closely with security and infrastructure teams to harden identity platforms.

Key Responsibilities

• Assess and refine AD tiering model (Tier 0-2)

• Review OU structures, delegation models, and GPO impact

• Identify and remediate privilege risks, service accounts, and dependencies

• Deliver AD design improvements aligned to security best practice

• Implement changes across users, groups, and server objects

• Conduct gap analysis and produce actionable remediation plans

Required Experience

• Deep expertise in Microsoft Active Directory architecture

• Strong knowledge of forests, domains, trusts, replication

• Proven experience in enterprise AD security and tiering models

• Experience with privileged access, SAWs, and role separation

• Ability to translate technical findings into business impact

Contract Details

6 month initial contract, strong day rate on offer, London based with high visibility programme work. For more information and direct contact with me, please send me an email and call only if required. I will be sure to check responses daily and shortlist the best candidates; if you are shortlisted, you will hear from me.

Robert@gazellegc.com

+44 7506151904