Patrick Flanagan
Senior Network Engineer with 20+ years of experience
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About
Senior Network Engineer with 20+ years of experience designing, implementing, and supporting enterprise network infrastructure across manufacturing, healthcare, MSP, and consulting environments. Proven expertise in LAN/WAN architecture, routing and switching, MPLS connectivity, VPN design, and network security.
Experience in working with cross-regional teams to deploy secure and scalable network solutions. Strong background in Cisco, Palo Alto, and Meraki infrastructure, firewall security, wireless networks, virtualization environments, and disaster recovery planning.
Experience
NOC/Level 3 Engineer at Complete Network (MSP) (2024-03 – Present)
- Provide advanced troubleshooting for enterprise LAN, WAN, and VPN connectivity issues
- Design and Configure and maintain Cisco, Meraki, Fortinet, Aruba, and Palo Alto, SonicWALL, Zyxel, and Sophos network infrastructure.
- Create detailed network diagrams in support of client on-boarding.
Network Engineer at Commercial Foodservice Repair/ Tech 24 (2022-04 – 2024-02)
- Created KB articles in Hudu.
- Design and implement secure IPSec VPN tunnels and remote site connectivity
- Manage multiple vendor (Meraki, Cisco, Aruba, Ubiquiti wireless networks
- Configured, maintained, repaired Dell PowerEdge and HP ProLiant servers.
- Maintain network documentation and knowledge base systems
- Implement automation and monitoring through enterprise NOC tooling.
- Design, Configure and Maintain Red Hat (RHEL 9.5) and Ubuntu (25.10 Questing Quokka) Linux servers
- Design and Support Microsoft 365 Cloud Apps and Security, Azure networking, Azure and AWS virtual servers, and hybrid infrastructure environments.
- Design and Support VMware, Hyper-V and Proxmox virtual on-prem environments.
- Troubleshoot and maintain fiber-optic E-LANs
- Vendor management.
- Designed and maintained Meraki and Cisco corporate WAN connectivity and secure VPN tunnels
- Managed Cisco and Meraki network infrastructure
- Implemented Azure networking including vNet-to-vNet and Site-to-Site connections
- Specified and Maintained datacenter infrastructure including Dell Poweredge servers, VMware ESXi, and EMC SAN storage
- Integrated newly acquired companies into the corporate network
- Implemented and Maintained network security architecture and disaster recovery capabilities (Veeam Enterprise, Zerto)
Network Engineer at AGFA Healthcare (2017-07 – 2022-04)
- Supported Global healthcare infrastructure connecting hospitals across North America and Latin America.
- Designed, Configured and Maintained secure B2B VPN connectivity between hospitals and AGFA infrastructure
- Managed enterprise LAN/WAN routing and switching infrastructure
- Configured Fortigate and Cisco firewalls, routers, and switches
- Supported AWS connectivity and secure site-to-site VPN architecture
- Collaborated with European and North American engineering teams
- Provided advanced troubleshooting for mission-critical healthcare systems
Network Administrator at Allcare Medical (2015-07 – 2017-06)
- Managed enterprise IT infrastructure supporting business operations and telecommunication systems.
- Administered virtualized server infrastructure using VMware
- Managed corporate wireless networks and security policies
- Maintained backup and disaster recovery systems
- Implemented mobile device management for corporate endpoints
- Supported VoIP systems and enterprise communications platforms
- Designed and Implemented Zerto Disaster Recovery Solution
- Configured and maintained Linux servers and Apache Web Servers.
Network Analyst I/NOC at Windstream (2014-11 – 2015-04)
- Supported ISP-level infrastructure and managed firewall migration projects.
Network Engineer at Multiple Companies (2000-01 – 2014-12)
- Migrated firewall infrastructure from Cisco FWSM to Fortinet platforms
- Configured routing and interfaces on Cisco and Juniper routers
- Provided network monitoring, security implementation, and reporting
- Automated FortiGate firewall configuration migrations from on-prem to cloud through scripting.
- Designed MPLS WAN connectivity across multi-site corporate environments
- Implemented enterprise Cisco VoIP systems and QoS optimization
- Managed enterprise network security architecture and firewall deployments
- Planned infrastructure upgrades including servers, switches, wireless networks, and backup systems
- Supported Environments of 200–500+ users
Education
Bachelor of Science in BA – Southern Wesleyan University (2008-02)
