Security Network Support Engineer

• Provide administration support across wired and wireless networks: switches, firewalls, network access controls and associated security components.

• Troubleshoot L3 network issues, with a heavy emphasis on Fortinet FortiGate (firewall & proxy) in a multi‑vendor estate.
• Monitor and triage security system alerts and suspicious activity; review daily logs and reports, investigate anomalies, and assist with remediation.
• Manage and process network/security support tickets (Incident, Change & Problem).
• Support a managed cloud tenancy and on‑prem communications infrastructure; assist with configuration management and documentation.
• Contribute to vulnerability management activities and continuous hardening of the environment.

• Collaborate closely with senior network engineers and security analysts; communicate clearly with stakeholders at all levels.

• Networking: Cisco‑centric core (LAN/WAN/DMZ/VPN/DNS), Cisco switching & routing

• Security:Fortinet FortiGate (priority), Check Point (perimeter—nice to have), web & email content filtering, IPS
• Monitoring & SIEM: Vulnerability management tools; Microsoft Sentinel; Defender suite (advantage)

• 5+ years’ experience in a network security administration role within a medium‑size environment.
• Certification: Minimum CCNA (or equivalent). Certifications in recognised Network/Security disciplines are required; CCNP, Fortinet, or Check Point CCSA are distinct advantages.
• Solid knowledge of LAN, WAN, DMZ, VPN, DNS and common protocols.
• Demonstrable experience with network configuration management and network security solutions.
• Experience with web/email content filtering, IPS, network security monitoring and vulnerability management tools.
• Full professional proficiency in English.
• Excellent communication skills, strong ownership and initiative — you’re comfortable working independently without hand‑holding.

• Exposure to Microsoft Sentinel and the Microsoft Defender suite.
• Prior experience supporting CISCO UC and transitions to Teams.
• Experience working in small, high‑trust teams where clarity and pace matter.

For more information please apply here or contact Niall Moloney/ niall(dot)moloney(at)eirbusiness(dot)ie
 
Ref: EBT7815




Candidates must be eligible to work full time and long term in the location specified or currently hold a valid appropriate long term work Visa to apply.
  
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