Open to opportunities

Michael Hennessee

Senior Systems Administrator focused on cloud migrations, enterprise infrastructure design, and secure modern workplace operations.

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Career Highlights

Architected migrations from on-prem Exchange and server workloads to Microsoft 365 and Azure.
Designed secure hybrid infrastructure including WAF, site-to-site VPN, and identity modernization.
Built complete network infrastructure for a new headquarters with Fortinet HA firewalls, VLAN segmentation, and secure wireless.
Implemented Conditional Access, MFA, Microsoft Defender, automated patching, and modern backup strategy.
Led penetration testing and disaster recovery exercises, including deployment of Horizon3.ai.
Drove AI initiatives with Copilot rollout and Azure OpenAI workflows for structured document extraction.

Experience Snapshot

System Administrator

Ohio Capital Corporation for Housing | Columbus, OH | 10/2015-02/2026

Owned and managed hybrid IT operations across cloud, on-prem infrastructure, networking, cybersecurity, endpoints, and continuity planning.
Led enterprise cloud transformation from legacy platforms to Microsoft 365 and Azure.
Designed and deployed end-to-end infrastructure for new headquarters, including server migration and segmented network architecture.
Strengthened governance and security through Conditional Access, MFA, Defender, automated patching, and backup modernization.
Implemented innovation initiatives using Copilot, internal AI chatbot workflows, and Azure OpenAI automation.

Tier III Application Support

Ashland Inc | Dublin, OH | 05/2013-05/2015

Served as primary escalation point for complex incidents not resolved by Level 1 and 2 support teams.
Supported enterprise systems including Lotus Notes, Office 365, SAP, Cisco VPN, MobileIron, SCCM, and network print services.
Led research and resolution of software compatibility issues during the Windows 7 migration initiative.

Skills

Azure Microsoft 365 AD / Entra DNS Fortinet Firewalls VPNs VLANs MFA Intune Windows Autopilot PDQ Cove Backup Veeam Azure Update Manager Teams Voice Exchange Online SharePoint Online Azure OpenAI Copilot Pen Testing Disaster Recovery

Certifications

Microsoft Certified: Azure Fundamentals (AZ-900) - Active
Microsoft 365 Certified: Fundamentals (MS-900) - Active
Microsoft 365 Certified: Teams Administrator Associate - Previously Certified
Microsoft 365 Certified: Teams Support Engineer Specialty - Previously Certified

Contact

Email: resume@michaelhennessee.com
Phone: 380-223-6182
Location: Columbus, OH

Resume

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