Network Support Engineer

Salary: £40,000 - 40,000 per year

Requirements:

• Routing and switching knowledge, including VLANs, STP/RSTP, trunking, and EtherChannel
• Basic understanding of OSPF, EIGRP, and BGP
• Experience with Cisco Catalyst 9300 Series equipment
• Wireless and SD-WAN knowledge, including Cisco WLC 9800, Cisco Enterprise Wireless, and Cisco Meraki MX/MS/MR devices
• Security knowledge, including Palo Alto PA-1140 firewalls, Cisco firewalls, Cisco ISE and NAC, and Zscaler ZIA/ZPA
• Familiarity with monitoring and troubleshooting tools such as Zabbix, Wireshark, Nmap, and Cisco Packet Tracer
• Experience with Cisco Catalyst Center (Cisco DNA Center) and network monitoring/reporting tools
• Understanding of ITIL processes, incident management, change management, and service request management

Responsibilities:

• Monitor and support enterprise LAN, WAN, wireless, and SD-WAN environments
• Perform basic configuration, troubleshooting, and maintenance of Cisco routers and switches
• Support Layer 2 and Layer 3 technologies, including VLANs, STP/RSTP, trunking, EtherChannel, OSPF, EIGRP, and basic BGP
• Carry out switch port configurations, VLAN assignments, and connectivity troubleshooting
• Assist with network device installation, upgrades, and configuration changes
• Support Cisco Wireless infrastructure and Cisco WLC 9800 controllers
• Monitor and troubleshoot enterprise Wi-Fi connectivity issues
• Provide operational support for Cisco Meraki devices, including MX Security Appliances, MS Switches, and MR Access Points
• Assist with SD-WAN monitoring and incident resolution
• Assist in managing Palo Alto PA-1140 and Cisco firewall environments
• Support firewall implementation and connectivity troubleshooting
• Monitor and support Cisco ISE and NAC solutions
• Assist with Zscaler ZIA and ZPA incident handling and user access issues
• Follow security policies and procedures to maintain network compliance
• Monitor network infrastructure using Zabbix and other monitoring platforms
• Perform first-level troubleshooting for network alerts and incidents
• Handle service requests, incidents, and escalations within SLA targets
• Participate in P2, P3, and P4 incident resolution activities
• Escalate critical issues to L2/L3 teams with proper diagnostic information
• Maintain incident records and update ticketing systems regularly
• Execute approved network changes under guidance from senior engineers
• Support patching, device upgrades, and routine maintenance activities
• Maintain network documentation, inventory records, and standard operating procedures
• Participate in planned maintenance and weekend activities as required
• Work closely with Service Desk, Security, Server, Cloud, and Application teams
• Coordinate with vendors for issue resolution and hardware replacement
• Contribute to knowledge-sharing sessions and team training initiatives

Technologies:

• Cloud
• Cisco
• Firewall
• Hardware
• Incident Management
• Support
• ITIL
• LAN
• Network
• Security
• Zabbix

More:

We support enterprise network operations across LAN, WAN, wireless, SD-WAN, and security environments. Our team works with Cisco, Meraki, Palo Alto, Zscaler, and related monitoring and management platforms to maintain reliable service, resolve incidents, and support ongoing operational changes. We collaborate closely across Service Desk, Security, Server, Cloud, and Application teams, and participate in planned maintenance and weekend activities as required.

last updated 38 week of 2026