Apr 2016 – Sep 2020 · 4 yrs 5 mos · Gurgaon, Haryana, India

Mar 2015 – Present · 11 yrs · New Delhi Area, India

• Coordinated with sales and consumers to formulate enterprise solutions and showcased technical white board demonstrations.
•  Managed configuration tools and outlined designs according to customer needs.
•  Execute POCs at client locations for live demonstrations of devices.
•  Routed supporting documentation to enterprise solutions.
•  Data Center network migration with new Cisco Nexus network devices.
•  Installed Nexus 3548 core switches and Cisco 2960 server access switches. Configured 3548’s with VPC(Virtual Port Channels)and Peer Keep-alive.
•  Use VRFs to isolate customer networks. Configure and manage a collapsed Cisco 6500 VSS and HSRP cores with C3750 stacks in top-of-rack; C6500s and C3560 stacks in access layer
•  OPManager traffic analysis, collecting events from C6500 switches and other routers.
•  Route redistribution and traffic engineering for remote branches.

Jan 2014 – Mar 2015 · 1 yr 2 mos · Gurgaon

•  Design,Build,Migration and maintenance of virtual web application into highly available(F5LTM) secure segments and ensure secure communication utilizing IPSEC tunnels to backend databases.
•  iRule Creation on F5 Big IP Load Balancers.
•  Support,Maintain and Migrate VMWare esxi 5.1 and VCenter.
•  Modifed BigIP F5 Load Balancer config for new servers, also configured firewall.
•  Implementing network security, including setting up firewalls(Checkpoint R76/ASA5505,5520,5550), managing host security, applying cryptography to network applications, and regulating file permissions.
•  Perform Software Installation, Upgrades/Patches, Troubleshooting and maintenance on Unix Servers.
•  Configured routers and switches using various technologies such as Frame relay, OSPF, EIGRP, BGP, VLANs (Primary and Secondary VLANs, Inter VLAN routing, HSRP, VRRP, GLBP, STP, RSTP, PVST
•  Proficient in researching traffic patterns to identify false-positives and malicious traffic within IDS(Intrushiels,TippingPoint),IPS(Snort),Proxy(BlueCoat)Firewalls(ASA,Checkpoint)
•  Designing and configuration of PPP circuit, using OSPF protocols on Cisco platform, configure and manage Cisco routers (1700, 2600, 3600) and switches (3750)
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•  Oversaw tuning and performance monitoring for UNIX/Linux Workstations, Servers and Peripherals.
•  Migrated and thoroughly documented the procedures to migrate from various environments to the latest version of Active Directory, Exchange, and Windows.
•  Resolve issues dealing with Firewall, VPN(ipsec l2l,web SSL) and AAA.
•  Designed and simulated autonomous system integration via BGP. Improved routing efficiency using route-maps, VLSM, prefix and distribution lists, route reflectors, summarization, distance and path-vector manipulation
•  Install/configure/troubleshoot routers e switch multilayer in LAN/WAN environment(1200 devices), HSRP,VLAN,TACACS+,SPANNING-TREE,VTP, routing ISIS, VPN GREoverIPSEC
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Sep 2011 – Nov 2013 · 2 yrs 2 mos · Noida Area, India

•  Built out a high speed network for a 150+ computer cluster. Using Cisco 6500 series switches, Cisco 7500 routers, Cisco ASA firewalls, F5 BigIPload balancing on Windows 2008 Servers.
•  Migrated Servers from 6500 Platform to Nexus without any application outage
•  Resolve issues dealing with Firewall, VPN(ipsec l2l,web SSL) and AAA.
•  Responsible for Network Services on Linux(DNS,DHCP,FTP,Monitoring)
•  Responsible for providing technical support on Cisco Security Devices including Cisco PIX/ ASA Firewalls and Cisco VPN concentrators.
•  Installation and configuration of devices (Cisco switches 2900-4500 and routers 2900-6500) to extend network or functionalities.
•  Designed and Implemented Overlay Network Management Network to manage all our Production Devices with Syslog, Cisco Secure ACS, TACACS+ and Solarwinds NPM
•  Working in a lab environment that comprises of 7204,7606 routers, 3750 and 3560 switches to test IPV6 over Provider Edge Router (6PE) over MPLS and Service-Provider Features:-
• MPLS L2/L3 VPNs
• MPLS Traffic Engineering to guarantee Bandwidth
• Multicast in MPLS/BGP VPNs
•  Protocols directly involved in supporting: IPv4, IPv6, BGP, MPLS/LSP/RSVP, ISIS, IGMP, SSM/Multicast, DHCP, DNS, GPON, SNMP, Syslog and more
•  Cisco Layer 2 and 3, 3560,2950 switches and Catalyst 2600 Series Router Configuration in addition to Desktops, application servers, infrastructure services (AD, DNS, DHCP, and VPN etc).
•  Performs small and large network design upgrades and hardware reconfiguration
•  Setting access-list and passwords in Cisco routing environment
•  Proficient with the SourceFire IDS/IPS to update devices and perform health checks
•  Working with TCP, IP, UDP, ARP, RARP, and Sub netting
•  Responsible for Installation & maintenance of LAN/ WAN Network
•  Trouble shooting & Monitoring for Router in EIGRP, OSPF,HSRP (Hot Standby Redundancy Protocol).
•  Designing, Implementing, Trouble shooting and Managing VLAN(Virtual Local Area Network)

Jun 2010 – Apr 2011 · 10 mos · Pune Area, India

•  Cisco Layer 2 and 3, 3560 switches and Catalyst 2600 Series Router Configuration in addition to Desktops, application servers, infrastructure services (AD, DNS, DHCP, and VPN etc).
•  Deployed and provided troubleshooting assistance for load balancer(F5 LTM)
•  Assisted in troubleshooting user problems relating to Operating System issues (Win XP/Vista/7, Mac OSX), Network Connectivity, TCP/IP configuration and upgrades.
•  Configure remote access system using IPSEC and SSL-VPN for Site 2 Site and Remote Users.
•  Cisco Switches and Router deployment, configurations, maintenance and support.
•  Administration and management of network consisting of numerous interconnected network segments, which include implement, install and troubleshooting support for the network
•  Open and work Change Requests for Network Services Group, opened trouble tickets, and interfaced customer to resolve issues.
•  Deployed Updates, Service packs and hot fixes using Windows Update, Automatic Updates, and Group Policies.
•  Resolve issues dealing with Firewall, VPN and AAA.