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Dynamic Search Solutions Logo Dynamic Search Solutions · IT - Administration

Senior Network Engineer (Fortinet Specialist)

United Kingdom 60000.00 GBP / Year · Job Posted January 15, 2026
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Job Description

We are seeking an experienced Senior Network Engineer to join a growing Network & Security Operations team, providing senior-level support across complex enterprise network and security environments. This role is focused on BAU support, troubleshooting, and operational stability, supporting critical customer infrastructure in a fully home-based capacity. You will act as a senior escalation point within the team, supporting secure, resilient LAN, WLAN, and network security platforms, while helping to drive service quality and continuous improvement.

Job Responsibility

  • Providing 3rd-line support and escalation for complex network and security incidents
  • Supporting and maintaining Fortinet security technologies, including FortiGate firewalls, FortiManager, FortiAnalyzer, Fortinet SD-WAN, FortiAuthenticator (identity-based policy enforcement), and FortiSandbox/FortiWeb where applicable
  • Supporting enterprise LAN environments (switching and routing)
  • Supporting and troubleshooting enterprise WLAN environments, including controllers and access points
  • Diagnosing issues across routing, switching, wireless and security domains
  • Performing configuration changes, upgrades, patching and routine maintenance
  • Monitoring network performance, availability and security posture
  • Creating and maintaining operational documentation, runbooks and knowledge articles
  • Providing technical guidance and mentorship to junior engineers

Requirements

  • 5+ years’ experience supporting enterprise network and security environments
  • Strong hands-on experience with Fortinet security platforms, particularly FortiGate firewalls
  • Proven experience with Fortinet SD-WAN design, deployment and support
  • Strong enterprise networking experience across LAN, routing and switching
  • Proven experience supporting enterprise wireless (WLAN) environments
  • Experience operating as a senior / 3rd-line engineer
  • Excellent troubleshooting and problem-solving skills
  • Operationally focused and calm under pressure
  • Customer- and service-driven, with a strong uptime mindset
  • Clear communicator with strong documentation habits
  • Detail-oriented and proactive
  • Enjoys mentoring and supporting team development
  • Fortinet NSE5 certification (required or strongly preferred)

Nice to have

  • Additional Fortinet certifications (NSE4, NSE6 or higher) are desirable
  • Experience supporting multi-site or large-scale SD-WAN environments
  • Exposure to network monitoring and management tools
  • Experience within managed services or enterprise operations teams

What we offer

  • Join a collaborative, operations-focused team supporting mission-critical enterprise networks
  • Work hands-on with modern Fortinet networking and security technologies
  • Opportunity for long-term technical growth and career development
  • Fully home-based position offering flexibility and work–life balance
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