Senior Network Support Engineer

Hamilton Barnes ?; Leeds; Hybrid; GBP 49,500 - 60,500; Full time

Benefits offered by this job

Hybrid: Wed in office

Staggered shifts

Job summary

Hamilton Barnes is seeking a Senior Network Support Engineer to lead Fortinet escalations in a six‑person team. This 3rd/4th line role is proactive and hands‑on, with a hybrid setup and Wednesdays in the office.

You’ll own FortiGate/FortiManager/FortiAnalyzer and FortiSD‑WAN, drive BAU improvements, and support SD‑WAN deployments. A proactive mindset, VPN expertise, and NSE5 preferred; shifts run 7am–5:30pm across the team.

Qualifications

• Deep Fortinet expertise across FortiGate, FortiManager, FortiAnalyzer, FortiSD-WAN and FortiSASE.
• SD-WAN experience essential, Fortinet SD-WAN preferred; Meraki or HPE Aruba Silverpeak also considered.
• Proactive mindset – seek root causes and fix them, not just close tickets.
• VPN configuration and troubleshooting across the Fortinet stack.
• LogicMonitor or PRTG monitoring experience is beneficial.
• Fortinet NSE5 certification preferred; other NSE certs considered.

Responsibilities

• Own 3rd and 4th line escalations across the Fortinet estate – the senior technical authority on the team.
• Drive proactive support – identify recurring issues, run BAU improvement projects, and reduce ticket volume.
• Manage and support FortiGate, FortiManager, FortiAnalyzer, FortiSD-WAN, FortiSASE environments.
• Support SD-WAN deployments and ongoing management across the customer base.
• VPN configuration, management, and troubleshooting across the estate.
• Use LogicMonitor or PRTG for network monitoring and performance visibility.
• Support the project team when required — dip into project delivery alongside BAU.
• Contribute to a staggered shift pattern — 7am–5:30pm across a team of six.

Skills

Fortinet expertise

SD-WAN experience

Senior engineer background

Proactive mindset

VPN configuration

Monitoring tools (LogicMonitor/PRTG)

Fortinet NSE5 certification

Shift pattern management

Job description

Senior Network Support Engineer — Fortinet technical lead on a skilled, established team

£55,000 | Hybrid | Wednesday office only

Our client has a skilled team of six network support engineers and they're looking for a technical lead to sit at the top of the escalation chain. This is a 3rd and 4th line role with a genuinely proactive bent — you're not just resolving tickets, you're identifying patterns, driving BAU improvement projects, and stopping problems before they happen.

The stack is 95% Fortinet — FortiGate, FortiManager, FortiAnalyzer, FortiSD-WAN, and FortiSASE. If you've spent your career going deep on Fortinet and you want a support-focused role with real technical authority and minimal commute (just Wednesdays in the office), this is worth a serious look.

WHAT YOU'LL BE DOING

• Own 3rd and 4th line escalations across the Fortinet estate — the senior technical authority on the team
• Drive proactive support — identify recurring issues, run BAU improvement projects, and reduce ticket volume before it happens
• Manage and support FortiGate, FortiManager, FortiAnalyzer, FortiSD-WAN, and FortiSASE environments
• Support SD-WAN deployments and ongoing management across the customer base
• VPN configuration, management, and troubleshooting across the estate
• Use LogicMonitor or PRTG for network monitoring and performance visibility
• Support the project team when required — dip into project delivery alongside BAU
• Contribute to a staggered shift pattern — 7am–5:30pm across a team of six

TECH STACK

WHAT WE'RE LOOKING FOR

• Deep Fortinet expertise — FortiGate, FortiManager, FortiAnalyzer, and SD-WAN hands-on experience
• SD-WAN experience essential — Fortinet SD-WAN preferred, Meraki or HPE Aruba Silverpeak also considered
• Consultant or senior engineer background happy to step into a senior support-focused role
• Proactive mindset — you look for root causes and fix them, not just close the ticket
• VPN configuration and troubleshooting experience across the Fortinet stack
• LogicMonitor or PRTG monitoring platform experience beneficial
• Fortinet NSE5 certification preferred — other NSE certs considered
• Comfortable in a staggered shift environment — 7am–5:30pm rotated across the team

THE PACKAGE

• Hybrid: Wednesday in the office, rest from home
• Staggered shifts: 7am–5:30pm across a team of six

WHY THIS ROLE STANDS OUT

• Almost entirely Fortinet — if that's your world, this role lets you live in it
• Proactive support focus — you're improving the network, not just firefighting
• Just one day a week in the office — genuinely flexible working arrangement
• Skilled, established team — you're joining peers, not carrying juniors
• Project team exposure — variety without it being a pure delivery role
• Senior technical authority — real escalation ownership, not another mid-level support seat