Active Directory (AD) Administrator

Job Title : Active Directory (AD) Administrator

Job Summary :

We are looking for a highly experienced Active Directory Administrator with 8–10 years of hands-on experience in managing, securing, and optimizing enterprise-level AD environments. The ideal candidate will possess deep knowledge of identity and access management, group policy management, and AD security best practices. This role supports a hybrid work model, with preference for candidates who can work in Chicago or remotely in US time zones.

Key Responsibilities :

Design, manage, and maintain enterprise-scale Active Directory and Group Policy infrastructures

Perform user account provisioning, deprovisioning, permissions management, and group membership audits

Administer DNS, DHCP, and AD-integrated services

Implement and maintain AD security policies, hardening protocols, and compliance standards

Troubleshoot and resolve authentication, replication, and domain controller issues

Support integration with Azure AD, Office 365, Okta, and other identity platforms

Collaborate with InfoSec and IT teams on access control, privileged access management, and security incident investigations

Execute disaster recovery planning, backups, and restoration for AD environments

Generate documentation for AD configurations, operational procedures, and knowledgebase articles

Participate in change management, patching cycles, and security upgrades

Required Skills & Qualifications :

8–10 years of professional experience in Active Directory administration

Strong knowledge of Windows Server (2012 / 2016 / 2019 / 2022)

Experience with Group Policy Objects (GPOs), LDAP, Kerberos, and AD replication

Solid understanding of DNS, DHCP, FSMO roles, and OU structure design

Familiarity with Azure Active Directory, SSO, and cloud identity integration

Scripting experience in PowerShell for automation and AD reporting

Experience working in enterprise environments and hybrid cloud infrastructures

Excellent troubleshooting, documentation, and communication skills

Knowledge of security standards, such as CIS Benchmarks, NIST, or ISO 27001 is a plus

Bachelor's degree in Computer Science, Information Technology, or related field preferred

Relevant certifications (e.g., Microsoft Certified : Azure Administrator Associate, MCSA) are a plus