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# Line Network Support Engineer - Systems Integrator

- **Company:** Hamilton Barnes
- **Location:** Hitchin, UK
- **Experience:** Expert
- **Salary:** £45,000.0 - £50,000.0
- **Contract:** Permanent contract
- **Skills:** IEEE 802.1X, Border Gateway Protocol, Cisco PIX, Cisco Routers, Nagios, Network Diagrams, Routing, Open Shortest Path First (OSPF), Terminal Access Controller Access-Control System (TACACS), Computer Networking Systems, Firewalls (Computer Science), Fortinet, Routing & Switching, Firepower, Firewall Services Module, Cisco
- **Published:** August 1, 2026
- **Apply:** https://www.careerjet.co.uk/job/gb307b49ba343a05c345fe1a931b3a9344/eaa

## About the Role

Skills/Must Have:

 * CCNA level or above, current or expired, it still counts
 * Fortinet NSE certification a strong bonus (NSE4+)
 * Strong Cisco networking background, routing, switching, and firewall configuration
 * Hands-on Fortinet experience, FortiGate and FortiManager in a managed service environment
 * SMB MSP experience highly advantageous, you understand the pace and variety of that world
 * Comfortable mentoring junior engineers, patient, knowledgeable, and willing to share
 * Solid documentation skills, you leave things better than you found them
 * Based within a reasonable commute of Hitchin, 2 days per week onsite

## Description

Join a growing managed service provider supporting a strong SMB customer base with reliable IT and network solutions. The organisation offers a collaborative environment with opportunities to provide technical leadership, support team development, and contribute to ongoing project delivery.
This opportunity is ideal for a Senior Network Engineer looking to become a key escalation point within an MSP environment. The role involves supporting 2nd line engineers, working across Cisco networking and Fortinet security solutions, and contributing to both project work and day-to-day technical support while mentoring and developing the wider team.
If you would like to learn more about this opportunity, feel free to reach out and apply today!
Responsibilities:

 * Act as senior escalation point for complex 3rd line network issues across the SMB customer base
 * Mentor and develop 2nd line engineers, design reviews, knowledge sharing, and hands-on guidance
 * Support and deliver network projects alongside the day-to-day support workload
 * Configure and manage Cisco routers, switches, and firewalls (ASA & Firepower)
 * Manage Fortinet firewall estate, FortiGate configuration, FortiManager, and security policy
 * Work across routing protocols, BGP and OSPF in customer environments
 * Support wireless environments, Meraki, Cisco, and Ubiquiti
 * Produce and maintain high-quality documentation, network diagrams, troubleshooting guides, and work instructions
 * Cisco Routing & Switching | Cisco ASA & Firepower | Meraki
 * Fortinet FortiGate | FortiManager
 * BGP / OSPF
 * AAA / TACACS / RADIUS / 802.1X
 * LibreNMS / Nagios | Ubiquiti Wireless


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