Olaoluwa Ilesanmi

- Administered Microsoft 365 environment for 500+ enterprise users, managing Exchange Online mailboxes, Entra ID accounts, and license provisioning, resulting in 98% uptime and <2-hour average ticket resolution time
- Resolved 200+ security incidents monthly using Microsoft Defender for Office 365 by investigating phishing attempts, spam filtering issues, and mail flow problems, reducing security

- Delivered onsite and remote technical support for 150+ enterprise clients across hardware, software, and network systems, maintaining 95% first-call resolution rate and SLA compliance
- Managed end-to-end IT service delivery by coordinating installations, scheduling preventive maintenance, and troubleshooting SQL Express database issues, ensuring zero critical downtime incidents
- Trained 50+ en

- Executed 30+ Exchange to Office 365 migrations by deploying mailboxes, public folders, and user profiles for enterprise clients, achieving 100% data integrity and zero business disruption
- Troubleshot complex Exchange Online and Active Directory integration issues including ADConnect, Azure AD sync, and DirSync configurations, resolving 85% of escalated tickets within 24 hours
- Maintained comp

- Led Office 365 migration project for 30-user client by configuring applications (Word, Excel, Outlook, Teams), training end users, and providing post-migration support, completing project 2 weeks ahead of schedule
- Collaborated with 4-member team on Exchange Server upgrade project, creating technical documentation and training materials, resulting in successful deployment with zero post-migrati

Assisted in the troubleshooting of staff member systems

Assisted with Network Configuration and General Help Desk queries

Bachelor of Science in Computer Science from the University of Ibadan, completed from 2012 to 2015.

National Diploma in Computer Science from Yaba College of Technology, completed from 2009 to 2011.