Systems Administrator
CurrentProvided systems administration and third level support to 800+ employees worldwide. On-prem AD and AzureAD management, Exchange Online, Teams, Sharepoint administration; Okta administration; Atlassian tools management; server builds, patching, management; data migration to cloud; user provisioning- Subject matter expert for Exchange and email issues: message traces, reporting, error resolution, spam filtering, DKIM, SPF, DMARC.- Part of team that built, deployed, tuned and supported Netskope Private Access system to replace traditional VPN with zero-trust SASE system; ongoing troubleshooting of Linux appliances- Managed cleanup of old data and migration of on-premise file servers to Sharepoint Online- Audited unused AD groups, accounts, and computer objects to reduce network attack surface- Updated, audited and maintained list of active and decommissioned servers; designed, implemented, and maintained routine automated patching schedule- Built and migrated Windows Deployment Servers and maintained images for current workstations as well as building new images for Windows 11 deployment