Senior Windows Systems & Active Directory Admin (Only W2)

Role: Senior Windows Systems & Active Directory Admin

Location: Columbus, OH - Onsite

• Expert-level knowledge of Windows Server and Active Directory administration, including Domain Controllers, Group Policy, DNS, DHCP, and PKI.
• Proven experience with enterprise patching and vulnerability remediation using tools such as Tanium.
• Strong understanding of Active Directory architecture, replication, and Group Policy management, with at least five (5) years of hands-on experience in large enterprise environments.
• Advanced troubleshooting and performance optimization skills for Windows Server environments, including authentication services and directory components.
• Experience leading infrastructure upgrades, migrations, and security remediation projects in compliance-driven organizations.
• Scripting/automation proficiency using PowerShell for patch deployment, vulnerability remediation, and system configuration tasks.

Responsibilities

• Serve as a technical lead for critical migration or infrastructure projects.
• Troubleshoot and optimize system performance, including hardware, system backups, updates, virtualization environments, and directory services.
• Manage enterprise-level Active Directory environments, including cloud-related technologies such as Azure AD, Microsoft Entra ID, Microsoft 365, and identity federation tools like PingID.
• Design and maintain GPOs, DNS/DHCP configurations, PKI services, and Active Directory replication.
• Administer, secure, and maintain enterprise-level Windows Server and Active Directory infrastructure.
• Manage patch deployment cycles, vulnerability scans, and remediation activities using Qualys and Tanium.
• Monitor and resolve vulnerabilities in accordance with security and compliance requirements.
• Lead complex infrastructure projects, including migrations, consolidation, and virtualization initiatives (VMware and cloud-based platforms).