IT Security and Network Architect

- Act as the technical lead for Cyber Security projects delivering network-related security initiatives on a 24x7 operations network. - Develop and implement industry-standard best practice network designs for scalability, resilience, and security. - Utilize a consultative approach with strategic thinking and innovative problem solving for network and security solutions. - Design and implement enterprise datacentre networks using ACI fabric design, including tenants, VRFs, bridge domains, and EPGs. - Configure and manage Cisco NGFW features such as IPS, Security Intelligence, Portscan Detection, and Encrypted Visibility Engine (EVE). - Perform firewall lifecycle management including upgrades, policy optimisation, and health monitoring. - Create secure network segmentation strategies aligned with zero-trust principles. - Utilize automation tools such as Python, Ansible, and REST APIs. - Design, deploy, and optimize application delivery using Citrix Netscaler, including L4-L7 load balancing, WAF, content switching, and traffic steering. - Implement high-availability and disaster-recovery strategies for critical applications. - Collaborate with application teams to ensure performance, resilience, and secure traffic flows. - Resolve technical issues escalated from second level network support. - Mentor second line staff in their development to contribute to team deliverables. - Provide network and security performance monitoring to meet our SLAs. - Operate, maintain, and secure network services supporting internal and external customers. - Continuously develop plans for failover and testing of critical network components to ensure resilience.