Senior System Administrator – Windows Server & Active Directory
Tasks
- Administer Microsoft 365 Exchange Online SharePoint Online OneDrive and Teams
- Administer VMware vSphere ESXi and vCenter
- Create and maintain architecture documentation runbooks and standards
- Define Group Policy strategy and standards
- Define automation strategy using PowerShell and Microsoft Graph
- Design and administer Windows Server roles and services
- Design backup restore and disaster recovery strategy
- Enforce authentication standards with MFA and conditional access
- Establish identity and access governance practices
- Implement Microsoft 365 security and compliance controls
- Lead Microsoft 365 migrations and service issue resolution
- Lead audits access reviews logging and compliance support
- Lead complex infrastructure identity and platform escalations
- Lead infrastructure projects migrations and upgrades
- Maintain and troubleshoot domain controllers FSMO roles replication and authentication
- Maintain server and endpoint security baselines
- Manage Microsoft 365 licensing tenant configuration and role assignments
- Manage VM provisioning standards host upgrades patching and capacity planning
- Manage hybrid identity synchronization with Microsoft Entra ID
- Manage storage and networking in virtual environment
- Mentor junior administrators and help desk staff
- Own Active Directory architecture and roadmap
- Participate in on call rotation for critical systems
- Respond to identity and infrastructure security events
- Set Windows Server build patching and hardening standards
- Troubleshoot and remediate virtualization performance and availability
Perks/Benefits
- Childcare resources
- Employee assistance resources
- Employee discounts
- Employee personal protection benefits
- Financial resources
- Health and wellness coverage
- Legal resources
- Monetary rewards for health goals
Skills/Tech-stack
AD CS | Active Directory | Conditional Access | DHCP | DLP | DNS | Defender for | Defender for Office | Defender for Office 365 | Disaster Recovery | ESXi | Entra Connect | Entra ID | Exchange Online | Group Policy | Kerberos | MFA | Microsoft 365 | Microsoft Entra | Microsoft Entra ID | Microsoft Graph | Microsoft Teams | NTLM | Office 365 | OneDrive | PKI | Powershell | Retention | SharePoint Online | VCenter | VLAN | VMware vMotion | VMware vSphere | Virtual switches | Windows server
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