Andrew Hangeior

I am a proactive technical support engineer certified in Microsoft 365 security administration with hands-on experience supporting enterprise M365 services. I focus on delivering high availability, security compliance, and strong client relationships.

I have led large-scale migrations, including a 200-user migration, and managed 300 subscription licenses, improving organizational efficiency by 25% and increasing M365 user satisfaction by 35%.

My technical toolkit includes tenant administration, identity and access management, threat protection, data loss prevention, Active Directory and group policy management, PowerShell scripting, Microsoft Graph API and Exchange Web Services to build integrations and automate workflows.

I resolve complex system issues, reduce troubleshooting time, and collaborate with cross-functional teams to deliver measurable reliability improvements. I am committed to continuous learning and delivering impactful support solutions for enterprise environments.