This position is intended for an experienced infrastructure professional who can independently resolve routine and moderately complex issues, own assigned systems or services, lead small infrastructure projects, and contribute to hybrid cloud adoption while maintaining strong hands-on support for on-premises operations. Administer Microsoft 365 / Office 365 services, including Exchange Online, Teams, OneDrive, SharePoint, licensing, security settings, mailbox administration, distribution groups, shared mailboxes, retention settings, and support escalations.