* Ensure network service availability. * Oversee firewalls, web application firewall, network analyzers, network switches and other security devices. * Design and implement network security infrastructure architecture. * Establish and enforce hardware and software standards suitable for network security environments. * Examine network systems to identify vulnerabilities. * Consult with internal and external parties to understand network security requirements, controls, policies and threats. * Maintain a level of detail that prevents stealthy cyber attacks. * Anticipate security risks and implement innovative solutions to neutralize them. * Keep up-to-date with current information security trends. * Track, analyse and resolve threats including malfunctions and attacks. * Ensure secure LAN and WAN architecture. * Lead network projects and ensure compliance. * Conduct network maintenance and system upgrades, including service patches, updates, hot fixes and security configurations. * Responsible for configuring, verifying and troubleshooting routing protocols. * Segregate and maintain VLANS, inter-VLAN routing and VTP. Configure RSTP, MST and PVST. * Manage and supervise structured cabling. * Administer and troubleshoot Avaya IP Telephony Systems. * Develop project objectives by reviewing project proposals and plans. * Determining organizational needs and coordinate the development and maintenance of network infrastructure. * Manage and configure Aruba wireless system. Knowledge and Experience * Minimum of 5 years related experience * Knowledge in Barracuda Firewall, Fortinet Firewall and Sophos Firewall * Knowledge in Barracuda Web Application Firewall * Knowledge in Darktrace EDR Solution * Knowledge in Routing, switching configuration in Avaya, Aruba, Cisco