SUMMARY

• CCNA Certified Professional with Eight years of extensive experience in network implementation, troubleshooting, engineering, managing & migration of large - scale enterprise networks.
• Configured Cisco Catalyst 2960, 3750, 4500, 6500 and Nexus 3000, 5000, 6000, 7000 series switches and Cisco 2600, 2800, 3600, 3800, 7200, 7600 series routers.
• Performed troubleshooting of connectivity issues and hardware problems on Cisco based networks.
• In-depth expertise in the implementation of analysis, optimization, troubleshooting and documentation of LAN/WAN networking systems.
• Working knowledge ofIP Addressing, Subnetting, VLSM, ARP, OSI and TCP/IP models
• Configured VLAN’s using Cisco routers and supported VTP, STP, RSTP, PVST and RPVST.
• Implemented router redundancy protocols like HSRP, VRRP.
• Configured and performed troubleshooting route redistribution between Static, RIP, EIGRP OSPF & BGP protocols.
• Expertise in implementing routing protocols RIP, RIP V2, EIGRP, OSPF, BGP
• Configured and supported LAN protocols on Cisco Switches such as Layer2, Layer3 and Multi-Layer.
• Hands-on experience in frame mode MPLS, MPLS VPNs design and troubleshooting.
• Configured security policies including NAT, PAT, VPN’s and Access Control Lists.
• Worked on F5 and CSM load balancers and deployed many load balancing techniques with multiple components for efficient performance.
• Installed and configured firewalls like Checkpoint NGX, Cisco ASA, Cisco PIX, Juniper Netscreen
• Designed and implemented DMZ for Web, Mail & FTP servers using Cisco ASA5505 firewalls.
• Managed inventory of all networkhardware, management and monitoring by use of SSH, Syslog, SNMP, NTP.
• Presented all the required technical documentation using MICROSOFT VISIO/OFFICE.
• A highly organized individual who adopts a systematic approach to problem solving, effectively analyzes results and implements solutions
• Excellent communication skills, Enthusiastic, motivated and a team player

TECHNICAL SKILLS

Cisco & other vendor equipment’s: Cisco routers (1800,2600,2800,3600,3800,7200 series),& Cisco Catalyst Switches (2900, 3500, 5000, 6500 series); F5 Load Balancer DX3280,3680, Cisco PIX 506/515/525/535 Series, ASA Firewall 5505/5510, Cisco IOS 12x, PIX OS 6x, 7x

LAN/WAN technologies: Ethernet, Fast Ethernet, Gigabit Ethernet networks, VLAN, VTP, STP, RSTP, 802.11a/b/g, Frame Relay, ISDN, PPP, ATM, MPLS, Leased line exposure to PPP, T1/T3, DS1, DS3, OC3, OC12.

Switches: Cisco L2 & L3 Switches 2900, 3560, 3750, 4500, 4900, 6500, Nexus 5K/7K

Switching: LAN, VTP, STP, PVST+, RPVST+, Inter VLAN routing & Multi-Layer Switch, Ether channels, Transparent Bridging.

Routing Protocols: RIP, RIP V2, OSPF, EIGRP, BGP, HSRP, VRR

Network Security: NAT/PAT, Ingress & Egress Firewall design, VPN Configuration, Load balancing, Internet Content Filtering, IDS/IPS

Load Balance: F5 Networks(Big-IP) LTM 8900 and 6400.

Infrastructures Services: DHCP, DNS, SMTP, TFTP, FTP

Network Management: SNMP, Cisco Works LMS, Wireshark

Documentation: MS office, MS Visio

Operating Systems: Windows Server, Windows XP, Windows Vista, Windows 7, Windows 8, Windows 8.1.

PROFESSIONAL EXPERIENCE

Confidential, Chicago, IL

Sr. Network Engineer

Responsibilities:

• Configured Cisco Catalyst 2960, 3750, 4500, 6500 and Nexus 3000, 5000, 6000, 7000 series switches and Cisco 2600, 2800, 3600, 3800, 7200, 7600 series routers.
• Configured Virtual Local Area Networks(VLANS) using Cisco routers and multi-layer Switches and also supported STP, RSTP, PVST, and RPVST along with trouble shooting of inter-VLAN routing and VLAN Trunking using 802.1Q.
• Worked on ASR 1000 series routers
• Implemented the required IP addressing schemes, LAN/WAN protocols, IP Services, to meet network requirements in different environments.
• Implemented redundancy with HSRP, VRRP, GLBP, Ether channel technology (LACP, PAgP).
• Worked on F5 BIG-IP LTM 8900, configured profiles, provided and ensured high availability alsoworked on F5 and CSM load balancers deploying many load balancing techniques with multiple components for efficient performance
• Configured access lists and performed troubleshooting on DNS/DHCP issues within the Local Area Network.
• Worked with complex routed LAN and WAN networks, and prepared technical documentation for the same.
• Performed troubleshooting networktraffic and its diagnosis using various tools like ping, traceroute, Wireshark, TCP dump and Linux operating system servers.
• Configured, Monitored and performed troubleshooting on routing and switching protocols RIP, OSPF, EIGRP, BGP and VLAN.
• Proficiently implemented traffic filters using Standard and Extended access-lists, Distribute-Lists, Route Maps and route manipulation using Offset-list..
• Configured, Monitored and performed troubleshooting on Cisco's ASA 5500/PIX security appliance, Failover DMZ zoning & configuring VLANs/routing/NATing with the firewalls as per the design.
• Managed inventory of all networkhardware, Management and Monitoring by use of SSH, Syslog, SNMP, NTP.
• Hands-on experience in Tier II ISP Routing Policies, Network Architecture, IP Subnetting, VLSM, TCP/IP, NAT, DHCP, DNS, FT1 / T1 / FT3 / T3 Sonet POS OCX / GigE circuits, Firewalls.
• Designed and implemented DMZ for Web, Mail & FTP Servers using Cisco ASA5500 Firewalls.
• Responsible for Check Point and Cisco ASA firewall administration across global.
• Proficient in Cisco IOS for configuration & troubleshooting of routing protocols: MP-BGP, OSPF, LDP, EIGRP, RIP, BGP v4, MPLS.
• Hands on experience in deployment of GRE tunneling, SSL, Site-Site IPSEC VPN and DMVPN.
• Expertise in OSI layer model/TCP/IP.

Confidential, Hartford, CT

Sr. Network Engineer

Responsibilities:

• Designed and implemented LAN/WAN configurations on Cisco Nexus 5K, catalyst 6500 switches
• Installed, Configured and performed troubleshooting Cisco Routers (ASR1002X, 3945, 3845, 2600, 3600) and Switches to perform functions at the Access, Distribution, and Core layers
• Configured and resolved various OSPF issues in an OSPF multi area environment.
• Implemented, configured BGP WAN routing, converting OSPF routes to BGP (OSPF in local routing).
• Configured and managed OSPF redistribution and authentication with type 3 LSA filtering and to prevent LSA flooding and also configured OSPF over frame relay networks.
• Maintenance layer2 switching tasks - VLAN, VTP, RSTP and also configured ether channel with LACP and PAGP along with troubleshooting of inter-VLAN routing.
• Performed networkmonitoring, provided analysis using various tools like Wireshark, Solar winds.
• Implemented, configured, and performed troubleshooting various routing protocols - EIGRP, OSPF, and BGP.
• Managed project task to migrate from Cisco ASA firewalls to Check Point firewallsetc.
• Implemented and managed traffic engineering on top of an existing Multiprotocol Label Switching (MPLS) networkusing Frame Relay and Open Shortest Path First (OSPF).
• Implemented various EX, SRX & J series Juniper devices.
• Designed, configured, implemented and performed troubleshooting (LAN) VLAN's, VTP, Spanning Tree (STP), Trunking (dot1q and ISL) and Ether channel.
• Implemented site to site VPN in Juniper SRX as per customer.
• Configured HSRP for networkredundancy and High availability.
• Hands-on Experience with convert Checkpoint VPN rules over to the Cisco ASA solution. Migration with Cisco ASA VPN experience.

Confidential, Monroe, LA

Sr. Network Engineer

Responsibilities:

• Implemented new Firewall requirements pertaining to Checkpoint Firewalls.
• Configured and maintained the firewall, analyzed the firewall syslog and performed rules reconciliations and capacity planning in every quarter year using Algosec.
• Configured and Maintained Cisco Wireless LAN controllers, Access points and Airtight Sensors and SpectaGuard.
• Configured Site-to-Site IPSEC VPN and RA VPN for the Customers' requirements.
• Performed Vulnerability Analysis test for Firewalls and other networkdevices and also provided the closures for vulnerabilities.
• Responsible for Cisco ASA firewall administration across our global networks.
• Configured and Maintained Cisco ACS 1121 Appliance running with 5.3 for Networkdevices access and Guest WIFI solution.
• Designed and implemented new Firewalls requirements for Customers such as Cisco PIX, ASA, Checkpoint UTM, Fortigate and Juniper SSG and SRX Firewalls.
• Configured and maintained Reverse Proxy management, operations, documentation, Reverse Proxy.
• Configured and Maintained Cisco ACS 1121 Appliance running with 5.3 for Networkdevices access and Guest WIFI solution.
• Worked on F5 load balancer deploying many load balancing techniques with multiple components for efficient performance and also worked on Cisco load balancers (CSM, ACE and GSS).
• Analyzed Checkpoint IPS syslog and closed the vulnerabilities in the network.
• Designed and implemented Wireless network in the Campus for both internal and project requirements.
• Reviewed the Change request plans created by L1 and L2 administrators.
• Implemented SNMP on Cisco routes to allow for networkmanagement. Completed the installation and configuration of T1, T3 & OC3 circuits.
• Integrated Cisco Security Manager with Cisco ACS Server 4.1, Bluecoat Cisco SSL VPN, Clean Access and ACS
• Implemented Checkpoint Firewall R76, R77.10 to protect and authenticate local-net and DMZ.
• Performed troubleshooting TCP/IP problems and troubleshoot connectivity issues.
• Configured routers and sent it to Technical Consultants for new site activations and giving online support at the time of activation.
• Performed troubleshooting, while maintaining trouble ticket tracking, following internal/external escalation procedures and customer notifications. Configured Cisco Routers for OSPF, RIP, IGRP RIPv2, EIGRP, Static and default route.
• Configured the Cisco router as IP Firewall and for NATing.
• Implementing VLANS and configured ISL trunk on Fast-Ethernet channel between switches.
• Presented all the required network documentation using Microsoft Visio/ office.

Confidential, San Antonio,TX

Sr. Network engineer

Responsibilities:

• Developed and implemented the company's security policies, rules and also coordinated lab testing of new software to ensure stable implementation.
• Installed and administrated Cisco ASA 5500 series firewalls, Cisco 3500, 4500, 6500 series switches and Checkpoint R 75.40 Firewall.
• Performed VLAN and Port channel configurations on Cisco 4500 and 6500 series switches and configured SSL VPN on F5 Firepass 4300.
• Provided Information Security Risk Assessment and consulting for internal projects.
• Coordinated with networkoperations center (NOC) for change notifications, alerts and escalation of security incidents.
• Hands-on experience of 802.11 a/b/g/n Ethernet standard for wireless Technology.
• Provided support to help desk for complex/major networkproblems and built the rules for the application access across the IPSEC VPN tunnel.
• Worked on F5 load balancer deploying many load balancing techniques with multiple components for efficient performance.
• Configured IPSEC VPN tunnels between Checkpoint and other non-Checkpoint endpoint devices using IKE pre-shared keys, 3DES and MD5.
• Performed daily networkoperations, on-call, and other duties and tasks as required.
• Monitored the ticket queue for incoming tickets and updated tickets in accordance to Service Level Agreement (SLAs) requirements and, escalated based on severity levels.
• Performed networksecurity, administration, analysis, and problem resolution for networks, including NT 4.0, Windows 2000, UNIX (Solaris & BSD), CISCO, TCP/IP, and Checkpoint firewalls.
• Implemented enterprise wide networkinfrastructure and ecommerce support solutions including networkintrusion detection, encryption and monitoring.
• Performed business migration planning including location change, platform introduction and integration.
• Worked on creating networkdocumentation using Microsoft Visio 2007.

Confidential, Charlotte, NC

Network Engineer

Responsibilities:

• Configured and implemented composite networkmodels which consists of Cisco 2600, 3600, 3700, 3800 series routers and Cisco 2950, 3500 series switches.
• Configured and deployed various models of Cisco switches and routers for Production, Disaster Recovery, and Quality Assurance, including TCP/IP, VLAN, VTP, HSRP, VRRP, EIGRP, RIP, OSPF, and BGP.
• Good working Experience with Ethernet 10BaseT, 100BaseT, 1000BaseT, T1, DS3, Ethernet
• Configured and deployed Cisco 2950, 3500 switches Cisco routers. Design, installation and configuration of multi VLAN environments in Layer2 and Layer3 devices.
• Responsible for network design, bandwidth allocation, IP address allocation, supervising installation, configuration and maintenance on major networktechnologies.
• Participated in the installation, configuration, and post installation daily operational tasks and configured the deployment of Cisco Nexus equipment.
• Configured networkusing routing protocols such as RIP, EIGRP, OSPF, BGP and manipulated routing updates using route- map, distribute list and administrative distance
• Negotiate VPN tunnels using IPsec encryption standards and also configured and implemented site-to-site VPN, Remote VPN.
• Designed and deployed various networksecurity & High Availability products like Cisco ASA other security products
• Maintained different layers Switches, created VLANs and configured VTP, and Inter VLAN Routing
• Configured static NAT, dynamic NAT, dynamic NAT overloading
• Back up a Cisco IOS to a TFTP server and Upgraded and restored a Cisco IOS from TFTP server.
• Performed network monitoring and management using SNMP protocol and various Enterprise monitoring suites (i.e. Solar Winds, Cacti)
• Maintained detailed networkconfiguration documentation and facilitate changes in documentation and networkmonitoring as devices are added and retired from the network.

Confidential, Pittsburgh, PA

Network Engineer

Responsibilities:

• Configured and Implemented Cisco 7200, 3800, & 2800 Series and Cisco switches 6500 & 4000 Series
• Designed & implemented LAN/WAN networks for various Fortune companies.
• Involved in troubleshooting networktraffic and its diagnosis using tools like ping, traceroute, Wireshark, TCP dump and Linux operating system servers.
• Extensive knowledge and experience of routing and switching protocols RIP, OSPF, EIGRP, BGP and VLAN.
• Supported STP, RSTP, PVST, and RPVST along with trouble shooting of inter-VLAN routing and VLAN Trunking using 802.1Q.
• Configured and performed troubleshooting on routing and switching protocols RIP, OSPF, EIGRP, BGP and VLAN.
• Provided project managers with network assessment of customers that needs to have data replication across their network.
• Require to be on-site to perform data simulation on the customer network links.
• Verified that data and time requirements are met for data replication.
• Performed troubleshooting of customer networks, as where to install and setup VLAN’s.
• Supported the setup of how security for routers and firewalls should be setup, so they will be able to meet the specification of data replication.
• Involved with customer project team on how their networks handle the data simulation and to give any recommendations how to improve or best to implement the equipment into the network with minimum impact and quality of service for their user community.
• Installed, upgraded, and performed troubleshoot of routers, switches, firewalls, and network monitor tools for car manufacturer plants, financial institutes, insurance companies, healthcare facilities, and airline companies.