Oneil Whitter
IT Support Specialist II
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About
Cloud-focused IT professional with 7+ years of experience supporting enterprise infrastructure, Microsoft 365 tenants, and Azure identity environments. Currently operating in a Managed Service Provider environment serving as Subject Matter Expert for 14 Microsoft 365 tenants while maintaining high-volume service desk performance (~40 tickets daily). Experienced in cloud administration, identity lifecycle management, endpoint troubleshooting, and multi-tenant Microsoft environments.
Experience
IT Support Engineer at L7 Solutions (2024-11 – Present)
Subject Matter Expert responsible for administration and support of 14 Microsoft 365 tenants.
- Perform tenant administration including licensing, user provisioning, MFA configuration, and identity management.
- Utilize CIPP and ConnectWise Automate to streamline multi-tenant administration and remote endpoint remediation.
- Support approximately 40 service desk tickets daily including cloud authentication issues, endpoint failures, and access requests.
- Troubleshoot Microsoft 365 services including Exchange Online, Teams, SharePoint, and Entra ID authentication issues.
- Leverage centralized tenant management tools to improve operational efficiency across multiple environments.
IT Support Specialist at BlueHalo (2024-12 – 2025-04)
- Delivered Tier 2–3 support for more than 300 enterprise users across hybrid infrastructure.
- Administered Microsoft 365 and Azure AD environments including account provisioning and access control.
- Supported remote workforce infrastructure including VM deployment and RDP connectivity.
IT Service Desk Analyst at Terumo Aortic (2022-08 – 2024-09)
- Provided enterprise IT support for corporate systems and network infrastructure.
- Administered Active Directory and Exchange environments including group policy and identity permissions.
- Troubleshot VPN connectivity, Wi-Fi networking issues, and endpoint configuration problems.
- Maintained service satisfaction scores above 95 percent through effective ticket resolution.
IT Technical Support Analyst at New Horizons
Service Desk Analyst at Abercrombie & Fitch
IT Systems Analyst at Chewy
Help Desk Technician at Collabera / Connexion Point
Education
Certification in Computer Information Science – New Horizons Computer Learning Center
Certification in Computer Science – Sheridan Technical College
