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# Network Security Support Engineer

- **Company:** Kerv
- **Location:** London, UK
- **Experience:** Experienced
- **Salary:** £46,250.0
- **Contract:** Permanent contract
- **Skills:** Border Gateway Protocol, Dynamic Host Configuration Protocol, Domain Name System (DNS), Monitoring of Systems, Intrusion Detection Systems, Multi-protocol Systems, Network Security, Routing, Open Shortest Path First (OSPF), Web Application Security, Simple Network Management Protocols, Wide Area Networks, Firewalls (Computer Science), Web Filtering, Network Support, Fortinet, Api Design, Firewall Services Module, Servicenow
- **Published:** August 7, 2026
- **Apply:** https://www.adzuna.co.uk/jobs/details/5830786788

## About the Role

* 4-5 years' experience in a network & security support role

 * ITIL Service Principles

 * SD-WAN deployment & troubleshooting

 * Security technologies (firewall policies, IPS/IDS, web filtering, secure web gateways)

 * Advanced routing (OSPF, BGP, MPLS)

 * Switching (Layer 2/3)

 * ISP circuit management

 * DDI (DNS/DHCP/IPAM)

 * Monitoring tools (SNMP, API-based platforms)

 * ITSM platforms (Autotask, ServiceNow)

 * Technical Skills: VeloCloud, SilverPeak, Fortinet, Zscaler, Infoblox (training provided for gaps)

What You Bring

 * Strong technical problem-solving and troubleshooting skills

 * Ability to create and maintain high-quality documentation

 * Excellent communication and customer service skills

 * Time management and task prioritisation in fast-paced environments

 * Professional, proactive, and collaborative approach

You will live the Kerv values…

 * Think Customer First
 * Team is everything
 * Spread good vibes

## Description

We're looking for an experienced Network & Security Support Engineer to join our Network Support Team. This role requires at least 4-5 years' experience supporting complex customer environments with technologies such as SD-WAN, Firewalls, Routing (OSPF/BGP), and ISP management.

You'll be part of a high-performing team, providing advanced triage, incident response, and change implementation, while acting as an escalation point for junior engineers.

Your part to play

 * Provide advanced support for network and security incidents & service requests

 * Lead implementation of change requests and project tasks

 * Act as an escalation point for Level-1/2 engineers, providing guidance and mentorship

 * Troubleshoot complex networking/security issues across customer environments

 * Manage ISP circuits and liaise with providers as needed

 * Maintain high-quality documentation and ensure knowledge sharing within the team

 * Participate in the out-of-hours on-call rota and flexible shift coverage


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