PROFESSIONAL EXPERIENCE:

• Over Eight years of experience in network infrastructure design and Project Management.
• Good knowledge of troubleshooting, implementing, optimizing and testing of static and dynamic routing protocols such as IPSec, RIP, EIGRP, OSPF & BGP ability to resolve complex routing problems.
• Implementing, Troubleshooting of MPLS LDP, MPLS VPN’s.
• Well Experience with Cisco Unified Call Manager, Cisco Unified Call Manager Express, Cisco Unity, IP Communicator etc. Configured and managed IPT networks.
• Good Knowledge in integration and configuration of Cisco based VPN networks and ASA Firewall.
• Knowledge of implementing and troubleshooting complex layer 2 technologies such as VLAN Trunks, VTP, Ether channel, STP and RSTP.
• Expert experience in Cisco ACE and F5 (Versions 10.x and 11.x) Big - IP Load Balancers, customized using internal tools and creating of SSL and Digital Certificates.
• Developed and directed the implementation of tactical plans for access, backbone, and interoffice networks deploying CISCO 3750, 6500, 7609 Routers and Nexus 2k, 5k and 7k series switches, JUNIPER SRX, MX, TX series routers and EX4500.
• Cisco IOS, NX-OS and JUNOS configuration and troubleshooting.
• Implementing and troubleshooting Advanced IP services such as VoIP, QoS, Multicast, PIM-SSM technologies.
• Expert experience in Infoblox DNS/IPAM/DHCP appliance.
• Proficiency in Shell, Python and Perl script.
• Expert experience with configuring routers and switches from ground UP/from scratch to deployment.
• Evaluated and tested network systems to eliminate problems and make improvements.
• Excellent customer management/resolution, problem solving and debugging skills with good verbal/written communications and presentation skills
• Expert knowledge of cable connectors and replacement as RJ-11, RJ-45, V.35, RS-449
• Implementing and troubleshooting IPv6 networks.

TECHNICAL SKILLS:

Cisco Routers: 7500, 7200, 3750, 2600, 2800, 6500

Cisco Switches: 4500,6500,5500,5509,6513,4948,3500,2900,2960,Nexus 2K, 5K, 7K.

Juniper: MX, TX, EX, SRX, J series.

Load Balancer: Brocade ADX, Alteon, F5 Big-IP, Cisco ACE 4700 series.

Protocols: EIGRP, OSPF, BGP, RIP, HSRP, VRRP, GLBP, MPLS, TCP/IP, IPSEC.

Design Tools: MS Visio Network Professional, MS-Project

Network Tools: Lucent Vital Suites, SNMP, Spirent, Netcordia NetMRI, Scrutinizer, Cisco PRIME, Orion, IXIA, HP OpenView, NNM, SolarWinds, WireSharkNetwork Topologies: Frame Relay, ISDN, Gigabit Ethernet, OSI and TCP/IP layered architecture, SSL/TLS.

Carrier Technologies: MPLS, MPLS-VPN, LDP.

IP services: QOS, LFI/CRTP, Multicast, DNS, DHCP.

Scripting: Perl, Shell, Python, VBScript.

Servers: Sun, HP Blade center

Switching concepts: VLAN, STP, RSTP, VTP, Ether Channel (LACP, PAGP), Port Fast, IP Access control lists, Uplink Fast and Backbone Fast.

PROFESSIONAL EXPERIENCE

Confidential, Chicago, IL

Sr Network Engineer

Responsibilities:

• Implemented MPLS VPN (RFC 2547) Mechanisms on Cisco IOS and JUNOS.
• Actively participated in upgrading fast Ethernet, Layer 3 switched/routed LAN infrastructure from Cisco 3640 to Cisco 2811 ISR routers and switches at access level to 2950, 3550. This project also involved in configuring and testing EIGRP, BGP, IPsec (DMVPN).
• Configuring and troubleshooting Edge and Core routers in MPLS domain. Implementing MP-BGP Session between PE Routers.
• Worked on troubleshooting production issues related to MPLS VPN involving PE configuration, PE-CE link issues such as routing protocol configuration, Layer1 / Layer2 issues, BGP4 address-family related issues, MP-BGP.
• Implementing IPv6 for ATT DNS network and troubleshooting configuration and routing issues.
• Experience in working on Citrix Netscaler Application Delivery Controller.
• Troubleshooting issues related to STP, RSTP, VLANs and VTP for maintaining Layer 2/3 Switching intact.
• Created various engineering documents (MS Visio) for deployment in IP/MPLS backbone.
• Configured Policy statements, Route-maps, Access-lists, Routing instances.
• Managed vendor relations and placement of orders to supportsuccessful deployment of projects, both on the Edge and Core.
• Ability to work independently and also as part of a team, following established guidelines.
• Implemented Symantec endpoint encryption (SEE) to prevent data breaches for lost and stolen devices.
• Monitored and troubleshoot EIGRP, MPLS, multi area OSPF and OSPF scale issues.
• Installed Linux OS, and configured required network on the virtual machines.
• Employedvarious network monitoring system tools (Riverbed, Netcordia's NetMRI appliance, Cacti, Nagios) to monitor, measure, alert, evaluate and rectify connectivity and latency issues critical to Data Center and WAN performance.
• Deployed Palo Alto Firewalls for web filtering and application control.
• Create Scripts (bat, vbscript, powershell) for workstations/servers/AD/DNS/etc, AD LDAP report, AD adds/deletes/changes.
• Configured and deployed Cisco Nexus 1000v for VMware vSphere environment along with VSG for firewall functionalities.
• Configuring Static, ISIS, BGP and OSPF Routing Protocols on Cisco ASR 9000, 9001, 6500 series Routers.
• Maintain Symantec Endpoint Protection console to ensure client workstations receive updates and definitions.
• Configured multicast routing like PIM-SM, BSR, SSM, MSDP, performance testing on IXIA, SolarWinds
• Created Python framework to pull and analyze data not managed by SNMP
• Managed Servers using F5 Big-IP load balancers to provide uninterrupted service for the customers and also for load testing, performance tuning, troubleshooting. Used Nexus switches in Multi-tenancy environment using VPC, VDC and VRF.
• Configured security features such as IPSEC VPN, TLS, SSL.
• Work with customers to create secure SSL VPN, load balancing, and network configuration polices on multiple vendors that support over 50,000 users
• Good knowledge with management tools and servers installed at KHBP such as Cisco 1040 sensor, Quality Policy Manager (QPM), Cisco Service Monitor (CSM), Cisco Unified Operational Manger (CUOM), Cisco LAN Management Solution (LMS), and Cisco Prime Collaboration.
• Experience deploying BIG-IP F5LTM Load Balancers for load balancing and traffic management of business application.
• Configured and automated the deployment of Linux and VMware infrastructure through our existing kickstart infrastructure.
• Worked on Route-Reflectors to troubleshoot BGP issues related to customer route prefixes, BGP route filtering policy problems, ORF etc.
• Included Router and switch configuration (VLANs (802.1q), VTP, etc. on Nexus 2k, 5k, 7k Switches).
• Excellent knowledge of Juniper EX/SRX/J-Series platform, Cisco Routers/ASA/7K Nexus devices, Palo Alto Firewalls, Riverbed WAN optimization, and Talari.
• Installed, Configured and Maintained a network of more than 25 routers and 50 switches (Includes Cisco 3500, 2900, 4500 series and Nexus 2k, 5k, 7k switches).
• Configured and maintained Cisco catalyst switches with HSRP for redundancy and migration of existing infrastructure to GLBP for unequal load balancing in critical sites using weighted technique according to company policies.
• Worked extensively on Cisco Firewall ASA 5500 Series (Configured ACLs in Cisco 5540 ASA firewall for Internet Access requests for servers, Protocol Handling, Object Grouping and NAT.)
• Implementing logical systems in Juniper MX480 and MX960 to design core network simulation.
• Installed and configured Juniper EX 2200, 4200, 6200, 8200 switches and Netscreen/SRX firewalls.
• Worked on Cisco Secure Access Control Server (ACS) for Windows to authenticate users that connects to a VPN 3000 Concentrator. Router/ Microsoft VPN Server in order to access certain limited network resources from customer locations.
• Utilized VBScript and HTML/HTA to automate the configuration of 802.1x port/interfaces.
• Complete network monitoring and performance testing with IXIA breaking point and traffic generator for fiber optic and Ethernet channel.
• Managed a Citrix XenApp 5 farm consisting of 7 servers. Installed and published server applications, created policies and performed server upgrades.
• Worked on Extensively on Cisco Firewalls, Cisco PIX (506E/515E/525/) & ASA 5500(5520/5540) Series.
• Configured & maintained IPSEC Site-to-Site VPN.
• Experience with convert Checkpoint VPN rules over to the Cisco ASA solution. Migration with both Checkpoint and Cisco ASA VPN experience.
• Played important role in managing timelines during the deployment process of network assets (routers, cards, facilities, Fiber Drawers, etc.,) and integration. Configured and tested server features such as Response Rate Limiting, Response Policy Zone.

Confidential, Plano, TX

Network Engineer

Responsibilities:

• Coordinated with remote technicians for installation and/or troubleshooting of store networking equipment (verification gear is showing up on network and functioning properly, troubleshoot issues, escalate as necessary)
• Worked exclusively on retail environment
• Worked on wide array of different projects, ranging from server installs / probes to configuring Layer 2 and Layer 3 devices, for implementation into new and existing switching blocks.
• Install, upgrade and configure Riverbed WAN Optimizers.
• Used Scrutinizer to analyze network congestion across Large Scale MPLS network.
• Provided strategic technical direction, roadmap design, installation, and configuration of all IP-based PBX telephone systems/services.
• Worked as Linux administrator for Linux servers running different business applications.
• Designing, Implementing, Maintaining Virtual Infrastructure Environment using VMware.
• Configured IronPort encrypted TLS connections for secure email communications.
• Configuring various advanced features (Profiles, monitors, iRules, Redundancy, SSL Termination, Persistence, SNATs, HA on F5 BIGIP appliances SSL termination and initiation, Persistence, Digital Certificates, Executed various migration/upgrade projects across F5 and hands on with F5 BIGIP LTMs/EM.
• Troubleshoot Wide Area Network related issues, and successfully implemented network-wide- (SEP)-Symantec Anti-Virus deployment.
• Identify capacity and performance issues to ensure uninterrupted service.
• Experienced in developing Web Services with Python programming language.
• Monitoring LAN and WAN network connections utilizing SNMPv3, Riverbed and Spectrum tools.
• Strong hands on and troubleshooting experience on check point and Palo Alto firewalls.
• Utilization of Web-Development technologies, including HTML, DHTML, CSS, ASP, XML, JQuery, VBScript and JavaScript.
• Configure Cisco 3550 Layer 2 and Layer 3 and supervise equipment installation and cabling work.
• Worked with PIM, IGMP and Multicast Protocols.
• Deployed 5525 firewalls for all the stores.
• Routine maintenance of the sites through OSS Citrix ICA client and Imanagerm2000.
• Worked with VMware vSphere Update manager on the vcenter server as well as on an individual server component for a linked mode vcenter configuration.
• Extensively used TCP/IP tool like TELNET for remote login to the routers and SSH for secure login.
• Building & configuring Red Hat Linux systems over the network, implementing automated tasks through crontab, resolving tickets according to the priority basis.
• Implemented CACTI network monitoring (via SNMP) and alerting on all corporate network gear, allowing the team to identify abnormal network behavior and react accordingly.
• Managed various teams involved in site surveys, cabling specifications, Network equipment installation and configuration.
• Proficient in Layer 1 circuit troubleshooting
• Hands on experience with ipv6.
• Responsible for information protection through Symantec Backup Exec (12.5).
• LAN cabling in compliance with CAT5 standards.
• Installed and configure Active Directory, DC, PDC, DHCP and AD integrated DNS servers and migration strategy.
• Responsible for implementing QoS technologies Cisco Call Manager, Unity, and IPCC, Cisco ASA's, IPSec, SSL, VPN, and PKI technologies.
• Seasoned professional in Check Point firewall policy administration and support between various zones.
• Worked with senior managers to design and document the design of local area networks for the Jcp stores
• Utilized Riverbed for Network Monitoring
• Configuring and maintaining TACACS+ for AAA
• Guided technicians in troubleshooting all complex network issues with routers and switches
• Good knowledge with Routing Protocols, Networking Layer1, 2, 3 Switching concepts, LAN/WAN technologies, Wireless Networking, TCP/IP concepts.
• Centralized Application Enabler for WAN sites thru Citrix Server.
• Hands on experience with Alcatel and Nexus switches
• Fluent with telnet, SSH, FTP and TFTP.
• Fluent in Cisco IOS and switch and router administration.
• Responsible for Check Point, Cisco ASA and Palo-Alto firewalls configuration and administration across global networks.
• Rebooted Pos server, non-pos server and utility server with the Help of Ts-pad.
• Expertise and extensive experience in managing ASA/SRX Firewalls, Catalyst switches and customer integration. Ability to setup devices, modify ACL’s and trouble shoot issues.
• Strong knowledge and experience with Microsoft office suite (word, Excel, PowerPoint and vision)
• Work with Data Network Design team as needed to ensure vendor transport requirements are adequately met in the published design specification document.

Confidential, Bohemia,NY

Network Engineer

Responsibilities:

• Tested various BGP features like local-preference, MED, Weight and replicated customer issue problems in the testing environment lab.
• Hands on experience with troubleshooting and managing Storage Area Networks.
• Performed various Line card memory upgrades, PRP memory upgrades and fabric upgrades on Cisco routers.
• Handle customer escalations related to Internet connectivity issues, VPN issues (OSPF sync issues), etc; work with various technical teams to find a resolution in a timely fashion.
• Minor experiencing in scripting, have a personal script used to manage multiple network devices using automated commands (VBScript) using OpenSSH.
• Deploy and maintain a Network Monitoring System. I decided to go with Nagios for NMS and Cacti and Graphite for graphing services.
• Configured policy maps, class maps and access lists on 6500.
• Protecting sensitive assets and retaining productive network environment, including implementation of new antivirus software (Symantec Endpoint protection) to combat viruses and malware.
• Configuring and troubleshooting Juniper MFC and MFA for the content caching.
• Resolved various Router configuration issues to provide redundancy and alternate routing using EBGP attributes like AS-PATH, local Pref.
• Designed secure VPN architecture, including MPLS VPN for various customers which includes ISP’s.
• Hardware, software and firmware upgrades of VMware systems and components.
• Support F5 GTM for top level domain and F5 LTM for application load balancing and SSL Offload.
• Involved in configuring / troubleshooting issues relating to routers, switches.
• Knowledge on QOS and defined class of service (COS) WRED and WFQ for bandwidth management.
• Monitored and troubleshoot the protocols EIGRP, OSPF and MPLS
• Provided support for BGP, EIGRP, HSRP and MPLS globally for various customers.
• Developed route redistribution mechanism between BGP and OSPF for large scale international networks.
• Switches standardization- Includes replacing old switches with standard Cisco 3500 switches, upgrading Cisco IOS/Cat OS on Cisco 3500, modifying switch configuration, adding authentication, logging and SNMP configuration parts.
• Installed and configured Cisco 2500, 2600, Nexus 2224 and 5548, Cisco catalyst switches 2924xl, 5000s, and configure CSU/DSU to support WAN Links.
• Configuring OSPF, RIP, EIGRP protocols and IP Subnetting, Routers and Switches.
• Worked as an operational support engineer for various WAN problems.

Confidential

Network Engineer

Responsibilities:

• ExperienceinsupportofLANandMANNetworks.
• Reviewing requirements, design, development, and test strategies to identify information security risks and ensure the proper security controls are part of theapplication/productsolution.
• Helping to define and implement an information security structure and design framework including applications design; end-user environment; hardware, software and network environment; and methodologies and standard.
• Engineering and architecting enterprise routing/switching protocols: OSPFv3,EIGRP,BGP,IBGP/EBGP,STP,Fabricpath,VpC's.
• Creating and maintaining reference architectures, technical standards andnetworkdiagramsforLAN/WAN/Datacenternetworks.
• Implementing, configuring and supporting cloud based application environments: Microsoft Azure, Vmware/vcenter and Cisco UCS, Amazon web servicesVPNdeployment.
• Configured ASA firewalls and installed it into enterprise network. Also F5 Load balancer LTMs to divide traffic from the web servers.
• Effective team player with strong verbal and written communication skills and innovative thinking.
• In-depth understanding of multiple operating systems.
• Maximizingnetworkefficiencybymonitoringperformance, troubleshooting network problems and outages, scheduling upgrades.
• Reporting network operational status by gathering and prioritizing informationandmanagingprojects.

Confidential

Network Engineer

Responsibilities:

• IOS upgrades on Catalyst 1900, 2900, 3500 series switches and 2500, 2600, 3600 series routers.
• Racking, stacking, and cabling network-based, IT systems.
• Configuration of Access List ACL (Std., Ext, Named) to allow users all over the company to access different applications and blocking others.
• Configuring of IP Allocation and sub netting for all applications and servers and other needs throughout company using FLSM, VLSM addressing.
• Troubleshot the issues related to routing protocols.
• Perform routine network maintenance checks as well as configure and manage printers, copiers, and other miscellaneous network equipment.
• Installing operating systems, software and hardware on computers.
• Responsible for Data Backup, System Update, Recovery and Restore, and Spyware removal.
• Assisting Junior and Senior Engineers, on-site management of cable-wiring technicians.
• Troubleshot problems on a day to day basis and documented every issue to share it with design teams.
• Configured Virtual Switching Systems (VSS) using two Cisco Catalyst 6500E switches to provide redundant route processors - Active-Standby Control Plane, Active-Active Data Plane.
• Configured IPv4 and IPv6 PIM Sparse Mode, Source Specific Mode and Bidirectional to test Multicast in a VSS environment using Ixia as the Traffic generator.
• Configured Ixia Explorer to ensure Stateful Switch over (SSO) is fine in a VSS environment.
• Faster Cisco IOS version upgrades using In-Service Software Upgrade (ISSU) within a VSS environment ensuring that customers experience no downtimes and able to provide continuous access to applications, data, and content from anywhere and anytime.
• Upgraded Multi Chassis Ether-channel links to 10 GE links.