SUMMARY:

• High proficiency as network Engineer with 7 years of experience in the IT industry, which includes expertise in the areas of Routing, Switching, security, DATA CENTER and physical layer deploying and troubleshooting
• Expert level knowledge of troubleshooting, implementing, optimizing and testing of static and dynamic routing protocols such as EIGRP, OSPF, BGP ability to interpret and resolve complex route table problems.
• Worked on Cisco 7200, 3800, 3600, 2800, 2600, 1800 series Router and Cisco 2900, 3500, 4500, 5500, 6500 series switch.
• Sound knowledge of Routing and Switching concepts and MPLS design.
• Proficient in design, implementation, management and troubleshooting of Check Point firewalls, Cisco PIX, NetScreen Firewalls, Check Point Provider - 1 / VSX, Nokia VPN, Palo Alto IDS, Foundry / F5 Load Balancers, and Blue Coat PacketShaper systems
• Design, Implementation and troubleshooting experience with Routers and switches, Checkpoint firewall, Cisco PIX, ASA and Juniper firewalls.
• Installing and configuring F5 Load balancers and firewalls with LAN/WAN configuration.
• In-depth understanding of IPV4, IP Subnetting, VLSM and ARP, Ping Concepts.
• Worked on network topologies and configurations, TCP/IP, UDP, Frame Relay, bridges, routers, hubs and Switches. Solid knowledge of Layer-2 networks, including PO Channel groups,
• VPC+, Fabric Path LACP,PAGP,STP,PVST,MST,BPDU.
• Fundamental Knowledge on Python Scripting.
• Configured HSRP and VLAN trucking 802.1Q, VLAN Routing on Catalyst 6500 switches.
• In-depth knowledge and hands-on experience on IP Addressing, Sub netting, VLSM and ARP, reverse & proxy ARP, Ping Concepts.
• Involved in migration of WLAN segment on the LAN Core. Also, involved in configuring wireless VLANS
• Well experienced in configuring gateway redundancy protocols like HSRP, GLBP and VRRP.
• Enhanced level of experience with OSPF, BGP, and TCP/IP.
• Excellent leadership with good written and oral communication.
• Great team player and able to work under pressure 24x7 duty rotation.

TECHNICAL SKILLS:

LAN: VPT, VLAN, Inter-VLAN routing, STP, RSTP, Etherchannel, CDP

WAN: PPP, ATM, MPLS, Leased Lines

SWITCHES: Cisco 3500, 2900, 5000, 4500, Nexus 6k, 7k, 5k, 2k

ROUTERS: Cisco CSR-1, GSR, Cisco 2600, 2800, 7200, 3600

ROUTING PROTOCOLS: OSPF, EIGRP, RIP, BGP

REDUNDANCY: VRRP, HSRP

NETWORK MANAGEMENT: Wireshark, SNMP, SSH, Telnet, ICMP

NETWORK SIMULATION TOOLS: OPNET Riverbed, GNS3, Cisco Packet Tracer

INFRASTRUCTURE SERVICES: SMTP, POP3, IMAP, DHCP, DNS

PHYSICAL INTERFACES: Fast Ethernet, Gigabit Ethernet, Serial, Console

OPERATING SYSTEMS: Windows XP/Vista/7/8/10, UNIX, Linux (Ubuntu and CentOS), MacOS X Snow Leopard, Cisco IOS

PROGRAMMING/SCRIPTING: Python 3.x, Basic JAVA, C++

PROFESSIONAL EXPERIENCE:

Confidential, Ft. Worth TX

Network Engineer

Responsibilities:

• Implementing security fixes to Network Equipment (Firewalls, NetScaler, and Switches/Routers) based on External Penetration testing reports. Monitoring and
• Troubleshooting NetScaler isuses during External Perimeter Pen Tests.
• Assisted with setup of new DMZ ­ implemented the NetScaler and Switch configs and conenctions for the project ­ Portchannels, SNIP, route entries
• Assisted in setting up the CIS network level 1 baseline. Reviewed, Researched and Created Regexs (automated checks based on device configs) on Solarwinds NCM tool, researched and implemented fixes to ensure switches/routers/Firewall compliance throughout the Network
• Security fixes on NetScaler (involved disabling obsolete protocols and ciphers (ssl3 and RC4, DES, upgrading SHA1 certs to SHA2 certs, Forward Secrecy, Rate Limiting). Testing TLS proxy implementations for external websites via ssllabs.com
• Routine Administration (Design, Implementation & Operations support) of Citrix Netscaler Load balancers (MPX 8400).
• Work on different networking concepts and routing protocols like BGP, EIGRP, OSPF and other LAN/WAN technologies.
• Pro cient with IP access lists, Cisco Discovery Protocol (CDP), Static Routing, Network Address Translation (NAT), VLAN Trunking Protocol (VTP), Spanning Tree Protocol (STP), Inter-VLAN routing, HSRP, Policy Based Routing, etc.
• Implemented layer 2 access switching networks with spanning-tree and vPC technologies.
• Implemented standard con guration template scripts in various network devices for SNMP v2, logging and STP.
• Replaced 6500 from access layer and Installed 3750s Switches.
• Worked on 2600, 3500, 7613 Cisco Routers and 4500 and 6500 series Cisco Switches.
• Con gured and managed Cisco access layer routers and switches& carried out route redistribution & manipulated route updates using distribute lists, route-maps & administrative distance, and offset-lists.
• Tested various BGP attributes like local preference, MED, Weight and replicated customer issues in the testing lab environment.
• Provide solutions to Tier 1 escalated issues and tickets.
• Replaced old 6500 and WAN routers from DR testing site and Installed Nexus 7K and ASR 1006 routers.
• Upgraded IOS on various Cisco Routers and Switches.
• Identified additional Network operations requirement and improvement opportunities

Confidential, Irving TX

Network Engineer

Responsibilities:

• Involved in con guring Cisco routers and switch administration, familiar with enterprise level Cisco Routers such as 7200 series, 3800 series, 3700 series, 2800series, and Cisco catalyst series switches like 6500, 3750, and 4500.
• Con guring and troubleshooting of routing protocols such as OSPF and BGP for effective communication.
• Implemented VLAN’s and access lists (ACL) and troubleshoot IP addressing issues and Update IOS images and other hardware installations.
• Experience in troubleshooting VLAN, STP (Spanning tree protocol), & Switch Trunk and IP subnet issues.
• Dealt with NAT con guration and troubleshooting issues related access lists and DNS/DHCP issues within the LAN network.
• Coordinated with senior engineers with BGP/OSPF routing policies and designs, worked on
• Implementation strategies for the expansion of the MPLS VPN networks.
• Monitoring Network infrastructure using SNMP tools like HP Open view.
• Worked with customers in troubleshooting issues related to connectivity, STP, VLANs, Inter-VLAN routing, VTP, Ether channels, Layer 2/3 switching, log messages.
• Implemented Hot Standby Router Protocol (HSRP) by tuning parameters like preemption.
• Implemented various OSPF scenarios on networks consisting of 7600 routers.
• Installed, maintained, and troubleshot Cisco catalyst switches, 4500 series and Nexus SK, 2K.
• Designed the network infrastructure based on MPLS WAN connection by using Cisco 4500 Catalyst switches, BGP, OSPF, and L3 switching.
• Created engineering design documents and technical documentation
• Troubleshot LAN connectivity and hardware issues in the network of 100 hosts; LAN cabling in compliance with CAT5 standards.
• Analyzed client requirements to provide solutions for network design, con guration, administration, and security.
• Troubleshot IP addressing issues and Updating IOS images using TFTP.
• Interacted with support services to reduce the downtime on leased lines.
• Troubleshot problems daily & provided solution that would x the problems within their Network.
• Deploying Layer 2 security in Server Farms by configuring switch for 802.1x port-based authentication.
• Responsible for turning up BGP peering and customer sessions, as well as debugging BGP routing problems.
• Configured Multiprotocol Label Switching (MPLS) VPN with Routing Information Protocol (RIP) on customer's site.
• Setup new workstations and printers to access the network.
• Used DHCP to automatically assign reusable IP addresses to DHCP clients.
• Created extensive architecture and design documents such as (site network diagrams, logical LAN/WAN diagram, network device list (servers/routers/switches), server information sheets) that will be used in the handoff from engineering to operations.
• Experience working with Nexus 7010, 7018, 5020, 2148, 2248 devices
• Worked on FTP, HTTP, DNS, DHCP servers in windows server-client environment with resource allocation to desired Virtual LANs of network.

Confidential

Network Consultant

Responsibilities:

• LAN/WAN hardware including Ethernet Hubs, Cisco Switches, switch panel installation and configuration.
• Experience with configuring Nexus 2000 Fabric Extender (FEX), which acts as a remote line card (module) for the Nexus 5000.
• Participated in the installation, configuration, and post installation daily operational tasks and configuration of the deployment of Cisco Nexus equipment
• Configured F5 Load balancers and monitored the Packet Flow in the Load balancers.
• Evaluated 3rd party software for Secure File Transfer used for supporting the internal services.
• Understanding the JUNOS platform and worked with IOS upgrade of Juniper devices
• Experience with Checkpoint Firewall policy provisioning
• Replaced aging Checkpoint firewall architecture with new next generation Palo Alto appliances
• Provided remote support to clients and interacted with customers to ensure their satisfaction while collaborating with various departments for additional assistance.
• Performed installation and basic configuration of Cisco Switches and Routers.
• Design and Configuration of user policies and group policies on Active directory.
• Performed daily Server backups on all servers in my department LAN, using Veritas Backup Exec.
• Worked on the security levels with RADIUS, TACACS+.
• Configuration of internal Vlan and external Vlan on F5 Load balancer.
• Configuration and design of TCP/IP, RIP, EIGRP, OSPF and BGP on routers.
• Troubleshooting WAN using BGP, EIGRP AND OSPF.
• Configuration and installation of multi­protocol (IP, IPX) multi­interface Cisco routers.
• Used DHCP to automatically assign reusable IP addresses to DHCP clients.
• Integrated VoIP with PSTN and set up voice Gateway ensuring QOS for Cisco based Voice over IP and CDR for voice call Accounting
• Implemented ACLs and authenticated (EIGRP, BGP) to ensure high security on the network.
• Installed Cisco Wireless NIC’s (network interface cards) for Desktop PC’s and installed Cisco WAPs (wireless access point) and Cisco Routers.
• Monitored and Tracked network response time using Cisco works 2000 LMS.
• Handled customer services like clearing and troubleshooting their network problems.
• Configuration of VPN using IPSEC and PPTP protocols.
• Configuration of DHCP and DNS servers.
• Performed configuration and maintenance of Vlans using catalyst 6500.

Confidential

Network Admin

Responsibilities:

• Configured HSRP between VLANs, configuring Ether Channels, Port Channel on 6500 catalyst switch.
• Performed data center migration in Access, Distribution and Core layers.
• Configured Routing protocols such as RIP, OSPF, EIGRP, MPLS, static routing and policy based routing.
• Configured and troubleshot link state routing protocols like OSPF in single area and multiple areas.
• 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.
• Provided Technical Support and solutions for network problems.
• Implemented NAT solutions on WAN applications.
• Upgraded IOS troubleshot network outages.
• Performed configuration and troubleshot EIGRP and BGP.
• Upgraded Cisco ASA 5510 firewalls using 6500/7600 catalyst modules for enhanced performance, security and reliability.
• Provided on-call support for installation and troubleshooting of the configuration issues
• Configured STP for loop prevention and VTP for lnter-VLAN Routing
• Performed troubleshooting of connectivity problems using PING and Trace route
• Provided Technical support for improvement, up gradation and expansion of the existing network architecture
• Done troubleshooting of TCP/IP problems and connectivity issues in multi-protocol Ethernet
• Environment.
• IOS upgrade 1900, 2900, 3500 series Cisco Catalyst switches and 2500, 2600, 3600 series Cisco routers using TFTP.
• Installed and configured DHCP server.
• Involved in troubleshooting of DHCP and other IP conflict problems.
• Configured ACLs (Standard, Extended and Named) to allow users all over the company to access