Delisha Johnson
Davenport
Summary
Network operations professional with 10+ years of experience designing, supporting, and optimizing enterprise network infrastructure in large-scale K-12 and public-sector environments. Expertise in Cisco routing and switching, Meraki wireless solutions, Cisco ISE, VoIP systems, LAN/WAN architecture, network monitoring, and performance optimization. Proven success supporting 250+ sites, leading technical teams, managing infrastructure projects, and delivering highly available network services to thousands of users.
Overview
22
22
years of professional experience
1
1
Certification
Work History
Enterprise Network Operator
Orange County Public Schools
Orlando, FL
08.2016 - Current
- Support enterprise network operations for more than 250 district sites serving students, faculty, and administrative staff.
- Configure, monitor, and troubleshoot Cisco routing, switching, wireless, and VoIP infrastructure.
- Utilize Meraki Dashboard, SolarWinds, ThousandEyes, and Wireshark to proactively monitor and troubleshoot network performance.
- Administer Cisco ISE network access control solutions supporting secure authentication and access management.
- Lead and mentor a team of three technicians responsible for deployments, upgrades, and operational support.
- Coordinate network infrastructure projects, including equipment installations and technology refresh initiatives.
- Manage inventory for more than 80,000 network and technology assets.
- Provide Tier III escalation support for routing, switching, wireless, VoIP, and infrastructure incidents.
Network Administrator
Lincoln Technical Institute
Orlando, FL
03.2013 - 04.2016
- Managed campus network infrastructure including switching, wireless connectivity, and WAN services.
- Administered Active Directory, SharePoint, and Microsoft enterprise services.
- Monitored network performance and implemented corrective actions to improve reliability.
- Coordinated technology procurement, vendor relationships, and equipment lifecycle management.
Information Technology Specialist
Florida National Guard
03.2004 - 03.2013
- Operated and maintained secure network, server, and VoIP infrastructure in mission-critical environments.
- Supported WAN connectivity and communications systems across multiple locations.
- Led a team of four IT professionals responsible for network operations and technical support.
Education
Master's - Network and Communications Management
DeVry/Keller Graduate School of Management
Skills
- Cisco Routing & Switching, Cisco Catalyst Switches, Meraki Switching & Wireless
- LAN/WAN Architecture, VLAN Administration, TCP/IP, VPN Technologies
- SolarWinds, ThousandEyes, Wireshark, Meraki Dashboard, Meraki Insights
- Cisco ISE, Network Access Control (NAC), Network Security Best Practices
- Cisco CUCM (VoIP)
- Active Directory, SCCM, SharePoint, Microsoft 365
- Technical Leadership, Vendor Management, Project Coordination, End-User Training
- Network troubleshooting
- IP addressing
- Ticket management
- VPN configuration
- Network configuration
- Wireless networking
- Network design
- Routing protocols
- VoIP systems
- Firewall management
- Load balancing
Certification
Cisco Certified Network Associate (CCNP) – In Progress
Timeline
Enterprise Network Operator
Orange County Public Schools
08.2016 - Current
Network Administrator
Lincoln Technical Institute
03.2013 - 04.2016
Information Technology Specialist
Florida National Guard
03.2004 - 03.2013
Master's - Network and Communications Management
DeVry/Keller Graduate School of Management