Administer Microsoft 365, Active Directory, Entra ID, Exchange Online, Windows servers, endpoints, and virtualization environments. Provide advanced helpdesk and infrastructure support, install and manage physical and virtual servers, troubleshoot complex incidents, perform root cause analysis, and automate administrative tasks with PowerShell. Collaborate with IT Engineering, vendors, and stakeholders on infrastructure projects, change management, documentation, security, HIPAA compliance, and system lifecycle management.