7+ years of network architecture and engineering experience in designing networks that improves operational proficiency and reduce total costs of ownership.
Engaged in design, install, configure and maintain complex routing, switching, VoIP, WAN/LAN, firewalls, F5 load balancers and network security issues.
Experience working with Cisco Routers, Nexus Switching Equipment, Catalyst Switches, PIX Firewalls and Check Point Firewalls, ASAs, Cisco Security Manager, IPSec, S2S VPN, TCP/IP, DNS, NTP, SNMP, TFTP, Windows Networking, as deployed in large complex firewalled VPN and leased line networks running, EIGRP, BGP, RIP, OSPF, H.323, and multicast.
Expert in implementing network security using Firewalls.
Sound knowledge of TCP/IP protocol and OSI layers.
Expert in configuring Routing Protocols EIGRP, BGP, OSPF, ATM, MPLS and Frame Relay.
Expert in Configuring and Implementing VPNs and Security using IPSec.
Implementing Voice support in an Enterprise Network, Bandwidth calculation, classification, Marking, NBAR, Congestion Management and Queuing.
Cisco Certified Network Associate (CCNA) and pursuing Cisco Certified Network Professional (CCNP).
Experienced in direct support of Extranet & Internet DMZs and network security for business to business corporate connectivity.
Have excellent ability in designing, implementation and configuring the network diagram and load Simulation using simulators like Opnet modeler, Boson, Cisco configuration maker, Gns3.
Experienced in configuring STP, VTP and redistribution between routing protocols troubleshooting them.
Hands on experience on project planning, implementation and its monitoring.
Knowledge of implementing and troubleshooting complex layer 2 technologies such as VLAN Trunks, VTP, Ether channel, STP, RSTP, CACTI and MST.
Provide Network Engineering, implementation and documentation of VOIP/ LAN.
Expert in configuring NIS, NFS, DNS and DHCP, troubleshooting network problems such as TCP/IP providing support for users in solving their problems.
Sound knowledge of Ipv4 and Ipv6.
Designing Redundancy Gateways for Campus Network using HSRP/VRRP/GLBP.
Strong Inter-personal skills, Team Player and fluent in communication.
Routers: Cisco GSR, 12000, 7500, 7206, 4506, 3825, 3845, 3640, 3620, 2600, etc.
Terminal Servers: 2511, 2509, Cisco ACS server.
Switches: Cisco 6500, 5000, 3500, 2900. Nortel, Extreme Networks Switches (Black Diamonds and Summit X250e)
Implementation of MPLS, HSRP, VRRP, DMZ, DHCP, NAT, NTP SNMP, DNS, FTP, TFTP, MRTG, Cisco ACS, F5 BigIP.
Firewalls: Cisco ASA 5540, PIX 525, 520, 515, 510. Sonicwall, Fortinet, Checkpoint and Juniper Net Screen NS-5XP, NS-5GT, NS-500, ISA 2006, VPN Concentrator 3000 series.
LAN technologies: LAN Switching, Layer 3 Switching, IP addressing, VLAN’s, routing/switching operational concepts, network connectivity, Ether Channel, DHCP, FTP, Telnet, Ethernet 802.11, 802.3, 802.3u, 802.3ab, cabling, FDDI, Token Ring, Bridging, Tunneling, Trunking, Frame relay, VLANs, VTP, STP, MSTP, RSTP.
WAN Protocols: Frame Relay, PPP, HDLC, ATM, ISDN PRI (Voice and Data), and ISDN BRI.
Protocols: BGP, MP-BGP, OSPF, EIGRP, IGRP ICMP, ARP, RARP, IGMP, LDP, WAAS, WCCP, RSVP, RIP/RIPv2, IS-IS, Routed Protocol (TCP/IP, IPX/SPX, and AppleTalk), L2VPN, L3VPN, MVPN, IPSec VPN.
Routing Skills: Route Redistribution, Route Maps, WAAS, WAN Routing, IP address Planning/Summarization, Configuring DHCP, Configuring/Troubleshooting Multicasting IGMP, Building Scalable Networks.
IP Telephony: SIP, H.323, RTP, SDP, SBCs, MGCP, Codec and Proxy Servers.
QoS using FIFO, CBWFQ, MDRR (Modified Deficit Round Robin), Priority Queuing, Custom Queuing, RSVP, RED, CAR. Policing, Traffic Shaping and Packet Marking.
Network Security: PIX firewall, IPSec, NAT/PAT, ACL, PKI, DES, MD5, IKE, LDAP, Remote/Site-to-site VPN, Configuring Cisco easy VPN, Implementing Cisco VPN client, implementing Firewall features, QoS, NBAR, implementing Intrusion prevention and detection system (IPS/IDS), GRE over IPsec, setup inspection rules, secured administrative access, AAA, Junos, Cisco Auto-Secure, packed filtering, etc.
IP Multicast with PIM Sparse Mode, PIM Sparse-Dense Mode, Auto-RP, Any cast.
Implemented Traffic Filters using Standard and Extended access-lists, Distribute-Lists, and Route Maps.
Packages like router emulator GNS3, Boson simulator, Oracle, MS Office.
Knowledge: Fundamentals of APL, RADIUS and TACACS, TCL, PERL, C, C++, VB, Java, Hardware/Software Installations, Troubleshooting.
Operating Systems - Windows XP Professional, Windows 2000 Server, Windows 2003 Server, Windows NT Server 4.0, Cisco IOS version 11.x, 12.x.
Bachelors in Electronics and Communication Engineering.
Cisco Certified Network Associate (CCNA)
Pursuing Cisco Certified Network Professional (CCNP)
Apex Supply Chain Technologies, Mason, OH, US January 2014- Till Date
Responsible for configuring and upgrading Cisco router 3700, 3600, 7200, 3800, 2800 series. Configurations involved routing protocols like OSPF, BGP, STATIC routes, etc.
Worked on cisco switches 3500, 2900, 3750 series. Configurations involved trunking, VLAN, Layer 3 Switching, etc.
Also responsible for installing and managing cisco catalyst switches – 3850 and 3500XL series.
Created and design network layout and documented the network system design with detail information.
Planning and implementation of sub netting, VLSM to conserve IP addresses.
Involved in test and turn-ups of circuit on daily basis and worked on network design, Routing, DNS, IP Subneting, QoS, TCP/IP protocol, (BGP, OSFP, RIP, and EIGRP).
Provided technical insight for implementing Quality-of-Service (QoS) for voice and data communications.
Experience in implementation, configuration & troubleshooting of 802.1q, ISL, IP Tunneling, DES/3DES, Access Control Lists (ACL), and Cisco IOS.
Responsible for creating, modifying, removing Vlan configs as per the need.
Responsible for Technical evaluation, technical troubleshooting, overall project management, problem solving and turn-up of the service with the ISP.
Configuring standard and extended access-lists for security purpose.
Troubleshoot Gigabit Ethernet, OC-3, DS3, fractional T3, T1, MPLS and Voice Over-IP connectivity issues.
Working knowledge and experience with Multicasting.
Responsible for ASA 8.x Firewall migration and in place hardware upgrades and troubleshooting, IOS Security Configurations, IPSec VPN implementation and troubleshooting, DMZ implementation and troubleshooting.
Provide timely and accurate progress status on all ongoing support issues, with an emphasis on problems, issues, and concerns.
Worked on Citrix Netscalers for accelerating performance and ensuring that applications are always available and protected.
Used load balancing appliances like Cisco's Local Director (CLD), F5 BigIP LTM and GTM and also used Ciscosecure Access Control Server (ACS) for establishing centrally manage access to network resources for a growing variety of access types, devices, and user groups.
Experience with network redundancy, diversity and associated dynamic protocols, including HSRP, VRRP, BGP and EIGRP.
Implementation and designing experience with Visio.
Work and experience with Cisco Content Delivery Network.
Used various BGP attributes and various route-filters such as prefix lists, route-maps to permit deny routes and to change various attributes.
Experienced in implementation and troubleshooting knowledge of protocols, technologies, especially in the following: BGP4, OSPF, IPv4, Ethernet, ATM, FR and MPLS.
Worked on Checkpoint, Fortinet and Cisco Pix firewall.
Manage, support and troubleshoot everyday network connectivity issues in the server data center, work through the trouble ticket system and resolve issues.
Tiffany & Co, Parsippany, NJ, US January 2012- December 2013
Maintained Cisco LAN and MPLS WAN network/i/wireless environments for 1150 domestic & international retail locations including 8 enterprise level supply chain distribution centers.
Managed Cisco routers and switches – 3600, 4500 Series routers, Cisco Catalyst 6500, 3850, 3500 Series switches, etc.
Vlan implementation, Spanning Tree Implementation and support using rapid stp and mst avoid loops in the network. Trunking and port channels creation.
Deployed BGP redistribution and changed AS paths for primary and backup DS3 circuits including QOS packet prioritization with service provider.
Lead engineer for Second Level Network Operations team which was heavily involved in all network design and deployment projects.
Involved in setup of Load Balancers like F5 BIG-IP and Nortel Alteon.
Responsible for multi-building campus network of 1300 + users including redundant data centers.
Primary deployment engineer on Frame Relay to MPLS conversion project for entire supply chain.
Maintained template and change management process for all 1200 + store firewalls (extended ACL’s).
Developed and implemented testing process for all new IOS versions being considered for production use.
Managed field engineers for all remote LAN/WAN/TELCO issues.
Hands on experience in administration of Cisco 26XX, 28XX, 29XX, 35XX, 36XX, 37XX, 38XX, 65XX, 72XX and 76XX series equipment including from scratch configurations and deployments.
Extensive experience with Cisco Wireless platforms including 44XX series controllers - thin access points plus standalone thick access points.
Worked with NETSCOUT Traffic Analysis enterprise sniffer platform (Appliance based version 4.3).
Involved with multiple distribution center network refreshes and one distribution center complete build-out and turn-up.
Maintenance, troubleshooting and assignments of all VLAN’s and VLAN trunking with VTP and 802.1q.
Primary Administrator of Solarwinds Network Performance Monitor (NPM) Version 9.x and Network Configuration Manager (NCM) Version 8.x.
Testing and troubleshooting of layer 1 circuit and layer 2 devices including WAN connection establishment and protocol debugging with multiple service providers for fractional DS1’s, DS3’s, MOE and OC3 circuits.
Provided Tier II escalation support for all network related issues and projects.
Ensured productivity in a highly SLA driven environment by assigning service level targets for each ticket priority for an international supply chain.
Maintained Cisco Communications Manager Versions 4.2.X and 6.X.X.
Belfurniture, Houston, TX, US June 2010- December 2011
Network Support Engineer
Designed and implemented various network technologies in lab environment, involving LAN/WAN, VPN, VLAN, Frame Relay, EIGRP, OSPF, BGP, MPLS, VoIP and CUCM, SIP Server.
Setup physical and logical topologies for different lab scenarios, configured Cisco equipment’s according to the prerequisites of the labs, installed various IOS versions on the equipment.
Provided hands on support and network assessments to ensure operational plans aligned with strategic directions.
Designed, developed and implemented Telephony system with skill sets of the following: Cisco Unified Communication Manager (CUCM) 6.0, H323, MGCP, SIP, SCCP and Cisco equipment.
Load Balancing experience with F5 LTM and GTM products.
Hands on experience in configuring QoS on Cisco Routers/Switches.
Maintained Cisco equipment’s, and PC workstations in Computer Networks Laboratory, recover malfunctions of equipment’s due to miss-configuration and upgrade IOS versions.
Experienced with network traffic analyzer and monitored network using Sniffers, Ethereal, Wire shark, TCP Dump, troubleshooting, analysis and protocol analyzer.
Experienced in virtualized environment, architecture, SAN storages and software including VMware workstation and Vsphere.
Support after hours cut-over/migration issues, opening trouble ticket with NOC for special support.
SATMED, Hyderabad, India November 2008- May 2010
Troubleshoot and resolve issues on WAN connections.
Extensive troubleshooting on the network in case of any failure.
Designed WAN structure to prevent single point of failure in case of link failure.
Administered VoIP infrastructure for the company.
Provided Technical support in terms of upgrading, improving and expanding the network.
Configuration and troubleshooting of EIGRP, OSPF, BGP.
Configuration of Standard and Extended ACLs for Security.
Monitor the operability and reliability of the network.
Extensive usage and experience with Remedy trouble ticket and change management system.
Recommend proper hardware and work on the budget proposal.
Responsible for all aspects of TCP/IP functionality.
Provided hands on support and network assessments to ensure operational plans aligned with strategic directions.