Network and security SME with extensive experience in designing and building network and security infrastructures for both on-premises and cloud environments (AWS, Azure). Expert in deploying and managing multi-vendor solutions including FortiGate, Palo Alto, Check Point firewalls, NetScaler and F5 load balancers, Zscaler cloud proxy, SD-WAN technologies, and advanced routing/switching. Proven ability to manage network performance through OpManager, while serving as an escalation point of contact for resolving high-severity technical issues. Certified across multiple platforms, specializing in secure, scalable hybrid infrastructures.
As part of my role, I was responsible for configuring High Availability (HA) clusters and managing Layer 3 (L3) interfaces, VLAN creation, and VDOM creation. I configured VPNs on Fortigate and implemented policies based on customer requirements. A key focus of my duties was identifying customer needs and configuring VLANs, IP pools, and bandwidth capping accordingly. I also ensured gateway redundancy for customer VLANs using VRRP/HSRP, while handling server load balancing through round robin, hash, and leased connection methods. Additionally, I implemented NAT policies as per client specifications and configured access lists on backbone routers.
A major part of my job involved identifying and resolving network-related issues, while coordinating with other service providers and the core backbone team for daily operations. I regularly monitored the health status of network peripherals and ensured backup of network equipment configurations. I actively monitored network health using tools such as Syslog, MRTG, Beaconware, and Sify Analyzer, and generated WAN link bandwidth reports, network uptime reports, and health check reports daily using MRTG and PRTG. Furthermore, I kept network diagrams and documentation up to date after any network changes.
I have extensive experience in the installation, configuration, and administration of various operating systems, including Windows 2003 Server, Windows 2000 Professional, Windows XP, and Red Hat Linux 4. I managed the installation, configuration, and administration of Quick Heal Antivirus Server on Windows 2000 Server. Additionally, I handled the setup and administration of Windows 2003 Server (Enterprise Edition), Active Directory, DNS Server for intranet, and DHCP Server. My role also involved providing comprehensive desktop and server hardware support, as well as network support. Furthermore, I configured and administered print servers and network printers to ensure seamless printing services across the network.
I was responsible for the installation and troubleshooting of Windows workstations, including Windows XP and Windows NT. My duties involved installing and providing basic troubleshooting support for Microsoft Office applications such as Word, Excel, PowerPoint, and Access. I handled in-depth troubleshooting for Outlook, Outlook Express, and Windows Mail using Microsoft Easy Assist. In addition, I installed and configured network switches and managed the overall administration of LAN systems. I also configured and maintained Outlook Express, ensured the smooth functioning of operating systems and application software, and managed antivirus programs and hardware maintenance to keep the systems running efficiently.
Design and Build Network and Security Infrastructure (On-prem & Cloud) : Led the design and deployment of a secure hybrid network, integrating AWS and Azure cloud environments with on-prem systems, using F5 load balancers, and advanced firewalls. Improved availability and reduced threat exposure by 40%.
Cloud Security and Landing Zone Parameter Firewall Implementation : Architected secure cloud environments on AWS and Azure, designing and implementing landing zone parameter firewall configurations. Deployed firewalls and security policies to secure hybrid environments while ensuring scalable connectivity.
OpManager Deployment and SD-WAN Optimization, Deployed OpManager to monitor network infrastructure, and F5 load balancers for comprehensive performance analysis. Reduced network latency by 20% through optimized traffic routing.
FortiManager Implementation : Implemented FortiManager to centralize the management of multiple FortiGate firewalls, improving efficiency and consistency in configuration, policy management, and network visibility across distributed environments.