-Ensured uninterrupted air traffic control operations by achieving 100% network availability for the extensive ATC backbone network.-Orchestrated seamless integration of third-party solutions into the ATC backbone network while prioritizing stringent security measures.-Proficiently managed and fine-tuned a spectrum of firewall technologies such as Checkpoint, Cisco FTD, ASA, and Palo Alto to fortify network defenses.-Established secure and reliable remote access and site-to-site VPNs across multiple sites, guaranteeing robust connectivity.-Leveraged advanced monitoring tools like Cisco DNA and Prime to proactively oversee network performance and promptly address potential issues.-Implemented and oversaw Network Access Control (NAC) through Cisco ISE, ensuring stringent access policies and network integrity.-Demonstrated expertise across diverse hardware platforms including Cisco ASR9600, Catalyst switches, ISR routers, and Nexus switches.-Spearheaded the implementation and optimization of the Cisco ACI platform, empowering network automation and efficiency.-Successfully deployed and managed Cisco Wireless Solution encompassing WLC and APs, ensuring seamless wireless connectivity.Technical SkillsNetworking: network design and implementation, and managing vast ATC backbone network.VPN: Remote access, site-to-site IPSec, SSL VPN, Security: Firewall management (Checkpoint, Cisco FTD, Cisco ASA, Palo Alto), Network Access Control (NAC) with Cisco ISEMonitoring: Cisco DNA, Cisco PrimeHardware: Cisco ASR9600, Catalyst switches, ISR routers, Cisco Nexus switchesWireless: WLC 9800, Cisco APProjects and Achievements-Successfully led a major network upgrade project, improving the overall performance and security of the ATC backbone network.-Designed and implemented a robust security framework that reduced potential threats and vulnerabilities.-Integrated multiple third-party systems into the ATC network, ensuring seamless operation and enhanced security.

• Responsible for the designing, engineering, analysis and implementation of large global, mid-size enterprise, wide area customer network infrastructure as well as delivery of Customer connectivity solutions.• Prepare project technical design documents detailing network recommendations based on client requirements as well as updating existing documentation.• Prepare project plan, documentation, technical & financial proposal for the customer.

•Design and implementation of new network tasks and projects to support business requirements and bank’s expansion process.•Pro-active availability and fault management for MPLS VPN WAN infrastructure.•Pro-actively monitoring, Troubleshooting and resolving LAN and WAN, routing, switching related issues.•Formulating and maintaining proper documentation for all technology infrastructure changes, upgrades, problems and resolutions.•Configuring Routers and Switches with EIGRP, OSPF, BGP, PBR, VLANs, Inter VLAN routing, VTP, HSRP, VRRP, SLB, STP, NAT, PAT etc. as per customer and topology requirement.•Performing troubleshooting tasks for connectivity, speed, and packet loss issues.•ISDN logical troubleshooting such as authentication, call rejection etc.•Tacacs configuration and maintenance and take syslog backup on daily basis•Maintaining and Monitoring, end-to-end connectivity, Core network infrastructure of around 2000 branches including of 5 datacenter with minimum uptime.•Perform bandwidth testing for banking application as whenever requested by customer and generate Bandwidth testing Reports. •Monthly/Quarterly reviewing network operations/projects performance with high management and business unit.•Prepare Plan of Action (POA) for Bank upcoming network project.

• Responsible for Monitoring/ sustenance of Security Products/ Security technology areas such as Firewalls (Fortigate UTM 650B) / IDS (Snort) / Antivirus Gateways / Content filtering software, SIEM (Arcsight).•Analyzing and troubleshooting network, security related logs for various client from Security Operation Center (SOC). •Daily Health monitoring of network devices such as Router, L3 Switch, Fortigate firewall •Create firewall rules, policies, IPsec VPN, SSL VPN etc. for the various.•Actively monitor logs on ArcSight ESM, create rules, dashboard etc.•Revamping of LAN infrastructure with restriction of physical media.•Designing LAN Architecture, IP schema with immediate migration at pre-requisite.•Migration of the LAN setup from a Flat structure to a hierarchical VLAN-based L3 network. •Integration and migration with Fortigate Firewall.•Generating Customized reports on PRTG tool like Bandwidth utilization, Processor/Memory daily monthly basis.•Formulation of Service Level Agreements.

•Proactively monitoring & troubleshooting network of around 1500 HDFC branches. •Diagnoses and troubleshooting of Network and Infrastructure systems in order to keep the systems up 24x7 with minimal downtime in case of any faults and problems.•Network Administration involving installation, configuration, maintenance and research to achieve optimal performance and maximum uptime.•Configuring routers, switches and performing troubleshooting tasks for connectivity, speed, and packet loss issues.•Troubleshooting and configuring Routers/Switches with EIGRP, BGP, OSPF and RIP, NAT, PAT, VLAN Inter VLAN routing, HSRP, VRRP, GLBB, STP, PVST, VTP etc.•ISDN logical troubleshooting such as authentication, call rejection etc.•Assist engineers those assign in to the remote location to resolve LAN and WAN Problems.•Performing Documentation and inventory tasks.•Managing IOS backups of routers and generating and maintaining router configuration backups on weekly basis.•Generating Customized reports like Bandwidth utilization, Leased line uptime, Processor/Memory utilization on daily and Monthly basis.

•Establishing network connectivity for all users.•Maintenance of the network devices router, switches, modem, server, desktops, •Troubleshooting and debugging of System, LAN connection.•Configuration of network connection using broadband connection and modem.•Installing & troubleshooting multimedia kits, modems•Attending to Computer Hardware, operating system related and Network related Queries of the client