10/31/2026 updated

SO
100 % available

IP Network Engineer | Cisco & Fortinet | LAN/WAN | BGP | OSPF | Network Security

Belfast, United Kingdom
Only remote
Cisco CCNA Certified; CCNP Routing & Switching Route, Switch and TSHOOT examinations passed
Belfast, United Kingdom
Only remote
Cisco CCNA Certified; CCNP Routing & Switching Route, Switch and TSHOOT examinations passed

Profile attachments

Shane O'Neill CV 2026.docx

About me

Extensive expertise in Cisco routers and switches, covering Layer 2 and Layer 3 connectivity, VLANs, inter-VLAN routing, TCP/IP, IP subnetting, OSPF, BGP WIFI. Network Security & Firewalls FortiGate firewalls and FortiSD-WAN, ACLs, IPSec VPNs, SSL VPNs, 802.1X l

Wireless LANCisco IOSCisco RoutersInternet Protocol Security (IP SEC)IP RoutingSubnettingVirtual Private Networks (VPN)Network SecurityRoutingTCP/IPFirewalls (Computer Science)FortinetCisco
Routing & Switching
Extensive expertise in Cisco routers and switches, covering Layer 2 and Layer 3 connectivity, VLANs, inter-VLAN routing, TCP/IP, IP subnetting, OSPF, BGP and advanced IP routing across enterprise LAN/WAN environments.

Network Security & Firewalls
Strong hands-on knowledge of FortiGate firewalls and FortiSD-WAN, including configuration of firewall policies, ACLs, IPSec VPNs, SSL VPNs, 802.1X and secure device configuration across regulated customer environments.

Network Management & Monitoring
Proficiency in FortiManager and FortiAnalyzer for centralised policy deployment, device onboarding, logging, monitoring and reporting, as well as Aruba Central and AirWave for enterprise wireless management.

Wireless Networking
Practical experience with Aruba Central, AirWave, ClearPass and Ekahau, including RF optimisation, high-density WLAN deployments, 802.1X authentication, guest access and role-based access control.

Network Upgrades & Migrations
Delivery of network upgrades, migrations and refresh programmes from pre-staging and configuration through four-eyes validation, production cutover and post-deployment support on Cisco IOS XE, Cisco Nexus, Cisco UCS and Fortinet platforms.

Troubleshooting & Incident Management
Strong 2nd and 3rd-line troubleshooting capability across routing, switching, WAN, wireless, VPN and firewall/security infrastructure, working within strict SLA, KPI and service-management environments.

BGP & OSPF Routing Protocols
Configuration and troubleshooting of OSPF-based IP routing and BGP routing across enterprise WAN environments, including investigation and resolution of complex routing and connectivity issues.

Change & Project Management
Experience managing network projects including documentation, change management, four-eyes validation, SLA/KPI adherence and on-call support for critical incidents and emergency changes.

IT Infrastructure Support
Background in desktop and infrastructure support, including installation and configuration of laptops, PCs, peripherals and business applications, Active Directory support and backup/user-data recovery.

Experience

Professional experience10+ years
Freelancer since2015

Languages

EnglishNative speaker

Project history

Senior SOC Engineer / MSP

Eir Business UK
Designed, deployed, configured and supported enterprise LAN/WAN infrastructure across banking, healthcare, local government and commercial environments. Configured Cisco routers and switches including Layer 2/Layer 3 connectivity, VLANs and complex network troubleshooting. Implemented OSPF and BGP dynamic routing environments. Configured and supported FortiGate firewalls and FortiSD-WAN including IPSec VPNs and SSL VPNs. Managed large Fortinet estates using FortiManager and FortiAnalyzer. Delivered network upgrades, migrations and refresh programmes on Cisco IOS XE, Cisco Nexus, Cisco UCS and Fortinet. Provided 2nd/3rd-line troubleshooting across routing, switching, WAN, wireless, VPN and firewall/security infrastructure. Designed and supported enterprise wireless infrastructure using Aruba Central and AirWave supporting 500+ access points and approximately 3,000 users. Supported Aruba ClearPass implementations including 802.1X authentication. Performed Ekahau wireless surveys. Participated in a 1-in-4 on-call rota for out-of-hours support.

Private Maths Tutor

Private Maths Tutor
Providing one-to-one mathematics tuition from secondary school through GCSE and A-Level standard, developing individual learning programmes, assessing progress and adapting communication and teaching approaches to individual needs.

Network Engineer

Coview Solutions / British Telecom Contractor
Delivered and supported enterprise WAN deployments as part of the BT R++ WAN transformation programme. Installed and configured Cisco routers and switches across customer branch environments. Performed advanced Layer 2 and Layer 3 troubleshooting including VLAN, switching, routing and connectivity issues. Configured and troubleshot OSPF-based IP routing across enterprise WAN environments. Investigated and resolved BGP routing issues. Supported resilient WAN connectivity using dual Superfast Broadband and ADSL2+ services. Conducted customer network site surveys and delivered implementations against defined project plans.

IT Engineer

British Telecom / IT Alliance
Delivered desktop and infrastructure support across enterprise and public-sector environments. Installed and configured laptops, PCs, peripherals and business applications. Supported Active Directory and user requirements. Troubleshot hardware, software and connectivity issues and supported backup/user-data recovery activities.

IT Engineer

British Telecom / IT Alliance
Supported a major IT infrastructure audit across the South Eastern Health Trust. Installed PCs, peripherals and applications. Supported Active Directory migrations and account configuration. Provided technical troubleshooting and produced audit and implementation reports.

IT Engineer

British Telecom / IT Alliance
Supported PC deployment programmes across Belfast Trust hospitals, including installation, configuration and user-data migration. Worked as part of a deployment team to meet daily installation targets.

Certificates

CCNA

Cisco

2016

CCNA

Cisco

2016


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