SUMMARY:

• Over Nine (9+) years of IT experience in design, development, implementation, troubleshooting and maintenance of complex Network & Security devices, Network Security and Linux Kernel Programming.
• Expertise in design, development, implementation, troubleshooting and maintenance of medium - to large scale IP telephony, VOIP, LAN/WAN Network infrastructures and Testing.
• Experience in Cisco Data and Call manager, Unity and Contact center express UC 500 series voice equipment and VOIP related voice technologies.
• Expertise in network protocols, Firewalls and Communication Network design.
• Experience with Troubleshooting tools for example protocol analyzers, load generators & network traces.
• Working knowledge of frame relay, MPLS services, OSPF, BGP and EIGRP routing protocols, NATing, sub-netting, also including DNS, WINS, LDAP, DHCP, http, HTML, HTTPS, TCP/IP, UDP, SNMP, OSPF, RIP, IPSEC, PPTP, VLAN, STP (Spanning tree Protocol), RTSP & Multicasting protocols.
• Corporate trainer for certification like CCNA, CCNP, Hardware & Networking.
• Designing, Implementing and Troubleshooting Cisco 3750, 3550, 3560, 2924, 6509-V-E, 6513, 6504, 6503, 6506, 6500 series switches.
• Experience in working with DATA-CENTER Nexus 9K, 7K, 5K, 3K and 2K switches.
• Proficient in configuration of VLAN setup on various Cisco Routers and Switches.
• Experience with F5 ADC, Palo Alto, Dell Force10, Brocade, Meru/Aruba WLAN, Splunk, Confidential .
• Experience with design and implementation of Virtual Switching System (VSS).
• Strong Knowledge of Virtualization in VMware products.
• In-depth knowledge of Linux Kernel Programming (Module Programming).
• Good knowledge and hands-on experience on Application Centric Infrastructure (ACI). Configuration of ACI for remote Authentication in the required organization.
• Hands-on experience with TCP/IP, LANs, WANs, and WLANs (Wi-Fi)
• Working knowledge on OPNET - Netflow to produce network management report
• Well Experience in configuring protocols HSRP, GLBP, VRRP, ICMP, IGMP, PPP, HDLC, PAP, CHAP, and SNMP.
• Good knowledge of IPv4 and IPv6 Addressing, Fixed Length and Variable Length Subnet Masking (VLSM), OSI and TCP/IP models.
• Expertise in Implementation and support of Network Infrastructure.
• Experience in migration of IPv4 addresses to IPv6 addresses using mechanisms like Tunnel Broker, Transport Relay Translation (TRT), NAT64, DS-Lite and DNS64.
• In-depth Cisco technology experience in design, implementation, administration and support.
• Strong hands on experience in installing, configuring, and troubleshooting of Cisco 7600, 7200, 3800, 3600, 2800, 2600, 2500 and 1800 series Routers, Cisco Catalyst 6500, 4500, 3750, 2950 and 3500XL series switches.
• Superior talents in supervising wireless migration of more than 40 sites with multiple WLAN controllers and APs
• Advanced knowledge of OSI model, TCP/IP, Internet technologies, system security, firewall infrastructure, network architecture and Cisco network routing / switching (Layer 2 and 3) experience, including LAN and WAN, design and implementation which includes Layer 1 to Layer 7 experience
• Well experienced in configuring gateway redundancy protocols like HSRP, GLBP, PPP and SNMP.
• Hands on experience in installing, configuring and troubleshooting of Cisco 12404,12406,7600, 7200, 3800, 3600, 2800, 2600, 2500 and 1800 series Routers, Cisco Catalyst 6500, 4500, 3750, 2950 and 3500XL series switches.

TECHNICAL COMPETENCIES:

Routers: Cisco 17XX, 18XX, 26XX, 28XX, 37XX, 38XX, 39XX &72XX Series

Switches: Cisco 3550, 3750, 45XX, 65XX series, Nexus 7K, 5K, 2K

Load Balancer: Cisco CSS, F5 Networks (Big-IP), Cisco ACE

WAN Optimization: Cisco WAAS, PPP Multilink

Routing: OSPF, EIGRP, BGP, RIP-2, PBR, Route Filtering, Redistribution, Summarization, Static Routing

Switching: VLAN, VTP, STP, PVST+, RPVST+, Inter VLAN routing &Multilayer Switching, Multicast operations, Layer 3 Switches, Ether channels, Transparent Bridging

LAN: Ethernet, Fast Ethernet, Gigabit Ethernet, FDDI, CDDI, Token Ring, ATM LAN Emulation

WAN: Leased lines 64k - 155Mb (PPP / HDLC), Channelized links (E1/T1/E3/T3), Fiber Optic Circuits, Frame Relay, ISDN, and Load Balancing

Various Features & Services: IOS and Features, HSRP, GLBP, IRDP, NAT, SNMP, SYSLOG, NTP, DHCP, CDP, DNS TFTP and FTP Management

IP Telephony: IP Telephony utilizing Cisco routers, FXO/FXS/E&M/T1/ISDN/ PRI, Call manager (Publisher & Subscriber)

AAA Architecture: Confidential +, RADIUS, Cisco ACS

Juniper: EX-2200, EX-4200, EX-4500, MX-480, M Series, RX210, SRX240

Security/ Firewalls: Cisco ASA Firewalls 55XX, IPSEC & SSL VPNs, IPS/IDS, DMZ Setup, CBAC, Cisco NAC, Checkpoint, ACL, IOS Firewall features, IOS Setup & Security Features

Operating System: Windows 10/8/7/XP, MAC OS X, Windows Server 2008/2003, MS SQL 2008, UNIX, Linux 5.x/6.x, Microsoft Visio, RedHat

Ethernet LAN: Ethernet (IEEE 802.3), Fast Ethernet, Gigabit Ethernet

PROFESSIONAL EXPERIENCE:

Confidential, Boston, MA

Sr. Network Engineer

Responsibilities:

• Configured Routing protocols such as RIP, OSPF, EIGRP, Static Routing and policy based routing.
• Design and implementation of Data center migration.
• Team member of Configuration of Cisco 7206 router with VPN and Configuration of Catalyst switches.
• Configuration 7500, 7200 with OSPF and catalyst 6505, 4500, 3550 switches with various VLAN.
• Create and test Cisco router and switching operations using OSPF routing protocol, ASA 5500 Firewalls, and MPLS switching for stable VPNs.
• Troubleshooting the Network Routing protocols (BGP, EIGRP and RIP) during the Migrations and new client connections.
• Configured Cisco/Avaya Data switches using the CLI in a Wide Area Network
• Deploying a multisided IP Telephony, VOIP with Cisco Unified Communications Manager (CUCM 8.6.2, 10.5.2), Cisco Unified Contact Center (UCCX 8.5, 10.5.2) and Unity Connections (CUC 8.6.2, 10.5.2).
• Testing of VOIP devices - (Lines, Router, and Server).
• Configuration and troubleshooting link state protocols like OSPF in single area and multiple areas.
• Redesign of Internet connectivity infrastructure for meeting bandwidth requirements.
• Optimized performance of the WAN network consisting of Cisco 3550/4500/6500 switches by configuring VLANs.
• Worked on ACI Fabric Path and connected ACI to Layer 3 external networks. Have configured ACI for remote Authentication in the respective organization.
• Deploying and decommission of VLANs on core ASR 9K, Nexus 7K, 5K, 2k and its downstream devices.
• Configured VLANs with 802.1q tagging. Configured Trunk groups, ether channels, and Spanning tree for creating Access/distribution and core layer switching architecture.
• Configured BPDU Guard, port-fast, uplink fast and other spanning tree features.
• Configuration and troubleshooting of Cisco 2500, 2600, 3000, 6500, 7500, 7200 Series routers.
• Worked on Nexus 7010, 5020, 2148, 2248 switches.
• Implementation and configuration of F5 Big-IP LTM 6400 Load balancers.
• Installation and administration of Checkpoint R 75.40 Firewall. Implemented firewall policy change on the Checkpoint clusters.
• Deploying Layer 2 security in Server Farms by configuring switch for 802.1x port based authentication.
• Design, install and support Cisco wireless LWAPP environment, supporting both 802.11ac (5GHz) and 802.11b/g (2.4GHz) environments.
• Implemented, configured BGP WAN routing, converting OSPF routes to BGP (OSPF in local routing)
• Technical assistance for LAN/WAN management and complex customer issues.
• Provided support for troubleshooting and resolving Customer and user reported issues. Worked with Network Engineer's in the installation and configuration of firewalls.
• Performed route redistribution & manipulated route updates using distribute lists, route-maps & administrative distance, offset-lists.
• Configured Fabric Path Port-Channel & Quality of Service (QoS) on Nexus 6K devices.
• Configured OSPF, BGP, DHCP Profile, HSRP, IPV6, Bundle Ethernet implementation on ASR 9K redundant pair.
• Installation of VOIP stations (Jabber Client) on user desktops off the Cisco CUCM.
• Monitored bandwidth, network activity, and network alert by analyzing data provided by Solar Winds Orion platforms. (Network Performance Monitor, Netflow Traffic Analyzer, Network Configuration Manager, & Server & Application Manager).
• Assembled, tested, and burned-in entire voice system in laboratory prior to system deployment.
• Provided configuration and installation support of Avaya and Nortel phone systems.
• Involved setting up the TFTP server for backing up the IOS images and configuration files of Cisco Routers and Switches and troubleshooting the file servers.
• Deploying a multisided IP Telephony, VOIP with Cisco Unified Communications Manager (CUCM 8.6.2, 10.5.2), Cisco Unified Contact Center (UCCX 8.5, 10.5.2) and Unity Connections (CUC 8.6.2, 10.5.2).
• Upgrades, installs, configuration and administration security and monitoring tools on Linux.
• Involved in patches and packages installation on Linux/Unix Environment.
• Generating RCA (Root Cause Analysis) for critical issues of Layer1/Layer2/Layer3 problems.
• Provided redundancy to the network, implemented Hot Standby Routing Protocol (HSRP) and Load sharing for effective utilization of routers.
• Configuring, implementing and troubleshooting VLAN's, VTP, STP, Trunking, Ether channels.
• Configuring and maintenance of layer2 switching tasks which advocate VLAN, VTP, STP, RSTP, PVST, RPVST, configuring of ether channel with LACP and PAGP along with troubleshooting of inter-VLAN routing.
• Packet capturing, troubleshooting on network problems with Wireshark, identifying and fixing problems.
• Performed regular Wireless Access Point analysis and Wi-Fi network monitoring and troubleshooting for Wireless Network fault detection within the Wireless Network infrastructure utilizing RF Site Survey-Spectrum, Air Magnet Wi-Fi Analyzer, and Wireshark survey tools for Wireless packet captures and analysis.
• Implementing, configuring, and troubleshooting various routing protocols like RIP, EIGRP, OSPF, and BGP etc.
• Performing network monitoring, providing analysis using various tools like Wireshark, Solarwinds etc.
• Cisco ASA/Checkpoint Firewall troubleshooting and policy change requests for new IP segments that either come on line or that may have been altered during various planned network changes on the network.
• Provided phone support through Avaya systems.
• Responsible for Cisco ASA 5500 Firewall administration, Rule Analysis, Rule Modification.
• Generating RCA (Root Cause Analysis) for critical issues of layer1/layer2/layer3 problems
• Enabled user authentication using CSACS server by implementing AAA security using Confidential +.
• Implemented Static NAT and PAT for internet users.
• Worked on Checkpoint Firewall R77, Palo Alto and Cisco ASA 5520 firewalls.
• Designed and configured the commands for QoS and Access Lists for Nexus 7K and 5K.
• Responsible for designing and implementation of customer’s network infrastructure.
• Network Implementations involve Cisco Confidential server management, Confidential Authentication monitoring, Local server certificates wireless endpoints, troubleshooting QoS CBWFQ Traffic shaping, Packet capture analysis via Wireshark and reporting unusual traffic.

Environment: Cisco 3750/ 3550/3500/2960 switches andCisco 3640/12000/ 7200/3845/3600/2800 routers, Checkpoint, OSPF, BGP, VLAN, HSRP, LAN, WAN, IPV4, ASA Firewall, Checkpoint, Nexus 7K/5K/2K

Confidential, Mason, OH

Sr. Network Engineer

Responsibilities:

• Involved in complete LAN, WAN development (including IP address planning, designing, installation, configuration, testing, maintenance etc.).
• Implementation of Wireless access points, Cisco 3750, 3850 Switches and Cisco 3900 and ASR 1000s Routers to new sites.
• Configured OSPF redistribution and authentication with Type 3 LSA filtering and to prevent LSA flooding.
• Implementing Cisco Application Centric Infrastructure (ACI) as a solution for data centers using a Spine and Leaf architecture.
• Provision and troubleshoot for 800+ VoIP users (Polycom and Avaya) .Supported an Avaya-based call center generating 2 million minutes a month on the phone with the customers.
• Implementing traffic engineering on top of an existing Multiprotocol Label Switching (MPLS) Network using Frame Relay and Open Shortest Path First (OSPF).
• Involved in design and implementation of Data Center Migration, worked on implementation strategies for the expansion of the MPLS VPN Networks.
• Designed MPLS VPN and QoS for the architecture using Cisco multi-layer switches. Cisco IOS experience on 3600/7200 class hardware in complex WAN environment and experience on Cisco OS and IOS on CAT6500 in a complex data center environment.
• IP Telephony, VOIP Deployment, management, Upgrading and troubleshooting of CUCM 8.6.2, 9.1.2 SU2, Unity connection 8.6.2, 9.1.2, UCC Express, Unity, UCCX 8.5 UC520, UC540 and VG224s
• Configuring RIP, OSPF and Static routing on Juniper M and MX series Routers.
• Configuring VLAN, Spanning tree, VSTP, SNMP on EX series switches. Design, and configuring of OSPF, BGP on Juniper Routers and SRX Firewalls.
• Designing data communications and networks utilizing that utilize a mixture of Frame relay.
• Involved in Switching Technology Administration including creating and managing VLANS's, Port security, Trunking, STP, Inter VLAN routing, LAN security etc.
• Configured IP, EIGRP, RIP, BGP and OSPF in routers. Configured and installed multi-protocol (IP, IPX) multi-interface Cisco routers.
• Programs and implements new networks and changes to existing networks on the Avaya/Audix Voice Network system.
• Worked on Cisco Nexus 2148 Fabric Extender and Nexus 5000 series to provide a Flexible Access Solution for datacenter access architecture.
• Converting Cat OS to Cisco IOS on the Cisco 6500 switches.
• Deploying EIGRP/BGP redistribution and the changing the metrics for the primary and backup paths for the packet prioritization and EIGRP tuning.
• Configuring RIP, OSPF and Static routing on Juniper M and MX series Routers.
• Managed corporate Checkpoint Firewall management and operation and implementing security rules and mitigating network attacks.
• Working with Checkpoint Support for resolving escalated issues.
• Working experience with CoS (class of service) on the Juniper EX and MX series switches and routers for the Radio Project includes configuring code points, ingress policers and Egress policers all the MCCA data centers.
• Move, add, changes of the devices of IP Telephony and VOIP.
• Deployed Site to Site and Client to Site VPNs utilizing Checkpoint Firewall-1/VPN-1.
• Configuring VLAN, Spanning tree, VSTP, SNMP on EX series switches
• Managing a Confidential server for VPN user authentication and Network devices authentication. Configuring IPSEC VPN on SRX series Firewalls.
• Coordinating with service providers for WAN link outages.
• Checking and configuring Cisco 7600 and 7200 routers at data center for remote sites issues.
• Working on Cisco 6509 and 4507 series switches for LAN requirements that include Upgraded and updated Cisco IOS from 12.3T to 12.4. Used to DHCP to automatically assign reusable IP addresses to DHCP clients.
• Worked with various scripting languages like Bash, Perl, Shell, Ruby, PHP and Python.
• Used PIX Firewall and ACLs for authentication of EIGRP to ensure high security on the network.
• Configure and implement remote access solution for customers: IPSEC, Site2Site, GRE tunnel end-to-end.
• Implemented the concept of Route Redistribution between different routing protocols Switching related tasks included implementing VLANS, VTP, STP and configuring on Fast Ethernet.
• Used load balancers ACE and load balancing technique with multiple components for efficient performance and to increase reliability through redundancy.
• Involved in migration from Frame-Relay/ATM network to MPLS-based VPN for customer's WAN infrastructure.
• Optimized performance of the WAN network consisting of Cisco 3550/4500/6500 switches by configuring VLANs.
• Troubleshooting data communication protocols and standards including TCP/IP, UDP, Token Ring, Cable Modem, PPPOE, ADSL, Multilayer Switching, DoD standards.
• Managed the F5 Load balancer GTM/LTM appliances to include writing iRules, SSL offload and everyday task of creating WIP and VIPs.

Environment: Cisco 3750/ 3550/3500/2960 Switches and Cisco 3640/12000/ 7200/3845/3600/2800 Routers, Checkpoint, OSPF, BGP, VLAN, HSRP, LAN, WAN, IPV4, ASA Firewall, Checkpoint, Nexus 7K/5K/2K

Confidential, Gardener, MA

Network Security Engineer

Responsibilities:

• Implementation of analysis, optimization, troubleshooting and documentation of LAN/WAN networking systems.
• Configured and troubleshoot OSPF and EIGRP.
• Planning and configuring the routing protocols such as OSPF, EIGRP, RIP, and Static Routing on the routers.
• Involved in configuring IP Quality of service (QoS).
• Configured and resolved various OSPF issues in an OSPF multi area environment.
• Managed fast Layer 3 switched/routed LAN/WAN infrastructure as a part of Network team. The LAN consisted of Cisco campus model of Cisco 3550 at access layer, Cisco 6513 at distribution/core layer.
• Worked with telecom vendors regarding network fault isolation.
• Worked on WAN (ATM/Frame Relay), Routers, Switches, TCP/IP, Routing Protocols (BGP/ OSPF), and IP addressing.
• Troubleshoot traffic passing managed firewalls via logs and packet captures.
• Configured CIDR IP RIP, PPP, BGP and OSPF routing.
• Involved in the configuration & troubleshooting of routing protocols: MP-BGP, OSPF, LDP, EIGRP, RIP, BGP v4. Configured IP access filter policies.
• Worked on WAN environments, installing and troubleshooting data circuit problems (MPLS, T1)
• Involved in designing and applying QOS and policy map to 2800 series routers for all the branches
• Involved in designing GRE tunnels for encryption of data flow from source to destination.
• Worked on Cisco 3500, 3750, 4500, 6500 series equipment and configuring and deploying and fixing them with various modules like Gig card, VPN SPA card, WIC card.
• Worked on Check Point Firewalls NG, NGX R65, R70, R75, R77, NSX (VMware Network).
• Creating multiple policies and pushing them in to Checkpoint Firewall (Gateways) and hands on experience in managing the Checkpoint Management Server.
• Configuring BGP/OSPF routing policies and designs, worked on implementation strategies for the expansion of the MPLS VPN networks.
• Managed and maintained legacy SQL and Microsoft Internet Information servers, databases, Windows Active Directory and ColdFusion server application.
• Modified internal infrastructure by adding switches to support server farms and added servers to existing DMZ environments to support new and existing application platforms.
• Deployed 7613 as PE and CE router and Configured and troubleshoot the Edge Routers.
• Handled troubleshooting on T1, T3, OC-3 and OC-12.
• Generated RCA (Root Cause Analysis) for critical issues of layer1/layer2/layer3 problems.
• Configuration and troubleshooting of Cisco catalyst 6509, 7613 with supervisor cards.
• Worked with Juniper Firewalls.
• Implementing projects requiring SQL 2012, on Windows 2012R2 platform.
• Deployed a SQL 2008R2 2 node cluster & SQL 2012 2 node cluster.
• Supported Billing team using custom SQL Server interface.
• Hands on experience with Cisco ACS 4.x servers.
• Worked on Project documentation tools & implementing and maintaining network monitoring systems (Cisco works & Net info, Info man Virtual Change) and experience with developing network design documentation and presentations using VISIO.
• Worked on Cisco IOS XR on ASR9000, 12000 series routers.
• Managed over 500 networks devices for AAA using Cisco ACS 4.x.
• Understanding & Implementation of IPSEC & GRE tunnels in VPN technology.
• Involved in designing L2VPN services and VPN-IPSEC authentication & encryption system.
• HSRP standby troubleshooting & Experience in configuring & upgrading of Cisco IOS.
• Implementing & Troubleshooting of T1, MUXES and CSU/DSU and data circuits.
• Worked on Cisco Works LAN Management Solution.
• Migration of Frame-relay based branches to MPLS based technology using multi-layer stackable switch like 6500 series and 2800 series router.
• Involved in design and implementation of Data Center Migration, worked on implementation strategies for the expansion of the MPLS VPN networks.
• Used IPsec VPN tunneling to provide access to user machines and partners in another network. Provided application level redundancy and availability by deploying F5 load balancers LTM.
• Converted Checkpoint VPN rules over to the Cisco ASA solution. Migration with Cisco ASA VPN.

Environment: Netflow, Confidential, EIGRP, RIP, OSPF, BGP, VPN, MPLS, CSM, SUP720, Ether Channels, Cisco 7200/3845/3600/2800 routers, Cisco 6509/ 3750/3550/3500/2950 switches, SQL 2008/2012, Cisco ASA firewalls

Confidential

Network Engineer

Responsibilities:

• Involved in Configuring and implementing of Composite Network models consists of Cisco7600, 7200, 3800 series routers and Cisco 2950, 3500, 5000, 6500 Series and Nexus switches.
• Configured networks using routing protocols such as RIP, OSPF, BGP, IGRP, EIGRP, Static and manipulated routing updates using route-map, distribute list and administrative distance for on-demand Infrastructure.
• Performed troubleshooting, while maintaining trouble ticket tracking, following internal/external escalation procedures and customer notifications.
• Supporting Development team for the access to corporate network and outside world. Providing access to specific IP, Port filter and port access.
• Configured the Cisco router as IP Firewall and for NATting. Switching (Ethernet) related tasks included implementing VLANS and configuring ISL trunk on Fast-Ethernet channel between switches.
• Installing new equipment to RADIUS and worked with MPLS-VPN and Confidential configurations.
• Installing and maintaining local as well as network printers.
• Validating existing infrastructure and suggesting new network designs.
• Working on creating new load balancing policies by employing BGP attributes including Local Preference, AS-Path, and Community, MED.
• Providing technical support to LAN & WAN systems.
• Configuring all the required devices and equipment for remote vendors at various sites and plants
• Installation and maintenance of new network connections for the customers.
• Installing and maintaining Windows NT Workstations and Windows NT Server.
• Monitor performance of network and servers to identify potential problems and bottleneck.
• Real time monitoring and network management using Cisco Works LMS.
• Monitoring Memory/CPU on various low-end routers in a network.
• Configuring routers and send to Technical Consultants for new site activations and gave online-support during activation.
• Provided technical support on hardware and software related issues to remote production sites.
• Performed administrative support for RIP, OSPF routing protocol.
• Maintained redundancy on Cisco 2600, 2800 and 3600 routers with HSRP.

Environment: Cisco 3750/ 3550/3500/2960 switches andCisco 3640/12000/ 7200/3845/3600/2800 routers, Checkpoint, OSPF, BGP, VLAN, HSRP, LAN, WAN, IPV4, ASA Firewall, Checkpoint, Nexus 7K/5K/2K

Confidential

Network Engineer

Responsibilities:

• Responsible for service request tickets generated by the helpdesk in all phases such as troubleshooting, maintenance, upgrades, patches, fixes, and all around technical support
• Configuring VLAN, Spanning tree, VSTP, SNMP on EX series switches.
• Configured and debugged policy based routing for special traffic, route filtering with route maps, route redistribution.
• Configured VLAN Trucking 802.1Q, STP, and Port Security on Catalyst 6500 switches.
• Ensured network, system and data availability and integrity through preventative maintenance and upgrade.
• Performed OSPF, BGP routing protocol administration.
• Router memory & IOS upgrade with TFTP.
• Implement Cisco IOS Firewall IDS using 2600 series router
• Network Assessment and Documentation (including technical, operational, and economic assessment)
• Responsible for designing and implementation of customer’s network infrastructure
• Redesign customer’s office copper and fiber cable plant for scalability
• Build and maintain Visio documentations for Clients
• Implemented Splunk to drive reporting and search for data collected from Cisco firewall devices - FWSM, Pix and ASA.

Environment: Cisco 3550/3500/2960 switches and Cisco 3640/3845/3600/2800 routers, Checkpoint, OSPF, BGP, VLAN, HSRP, LAN, WAN, IPV4, ASA Firewall, Checkpoint, Nexus 5K/2K