Microsoft System Administrator

• Deploy, administer, and operate Windows Server, Active Directory, DNS, DHCP, GPO, File Server, WSUS, Certificate Services, and other Microsoft infrastructure services.

• Administer Exchange On-premises, Exchange Online, and Hybrid Exchange, including mailboxes, groups, mail flow, connectors, transport rules, permissions, archives, quotas, and email troubleshooting.

• Manage Microsoft Entra ID/Azure AD, Entra Connect, Enterprise Applications, SSO, MFA, Conditional Access, and user account lifecycle.

• Administer Microsoft 365 services including Exchange Online, SharePoint, OneDrive, Teams, licensing, and data sharing/access policies.

• Monitor system performance, capacity, availability, and health; handle incidents, service requests, and changes in accordance with ITSM processes and SLAs.

• Operate backup and restore solutions for Windows Server, Active Directory, Exchange, and Microsoft 365; participate in disaster recovery planning and testing.

• Use PowerShell/Microsoft Graph PowerShell to automate administration tasks, health checks, reporting, and configuration standardization.

• Implement Microsoft security policies including Windows hardening, MFA, Conditional Access, audit logging, and privileged account management; coordinate with SOC/Information Security teams on security incidents.

• Maintain operational documentation, system diagrams, SOPs, health-check checklists, and troubleshooting guides.

• Bachelor’s degree in Computer Science, Information Technology, Computer Networks, Information Systems, Telecommunications, or a related field.

• 1–3 years of experience administering or operating Microsoft systems in an enterprise environment.

• Strong knowledge of Windows Server, Active Directory, DNS, DHCP, GPO, OU, Groups/Permissions, FSMO, AD Replication, and System State Backup/Restore, with troubleshooting experience in AD/DNS/Kerberos/Trust issues.

• Hands-on experience with Exchange On-premises/Online, mail flow, connectors, transport rules, mailboxes, and email troubleshooting.

• Experience with Microsoft 365 and Entra ID/Azure AD, particularly identity synchronization, MFA, Conditional Access, SSO, and Enterprise Applications.

• Strong PowerShell skills with the ability to develop automation scripts and operational reports.

• Basic knowledge of Microsoft security, including Windows hardening, privileged accounts, audit/sign-in logs, SPF/DKIM/DMARC, and anti-spam/phishing.

• Strong troubleshooting, analytical, and system-thinking skills, with good collaboration across Infrastructure, Security, Application, and vendor teams.

Preferred Qualifications

• Experience with Hybrid Identity/Hybrid Exchange in large enterprise environments.

• Knowledge of Microsoft Defender for Office 365, Microsoft Purview, DLP, Retention, and eDiscovery.

• Experience with Intune, Autopilot, and Endpoint Management.

• Experience with backup solutions such as Veeam, Veritas, or Avamar.

• Experience in monitoring, alerting, log analysis, or SOC integration.

• Relevant Microsoft certifications such as Azure Administrator, Microsoft 365 Administrator, Identity & Access Administrator, or Windows Server Hybrid Administrator.