SUMMARY

• 7 years of professional experience in Network engineering with Cisco Certified Network Engineer, performing Network analysis, design, Implementing, capacity planning with a focus on performance tuning and support of large Networks.
• Strong knowledge in Cisco Routing, Switching and Security with Cisco hardware/software (heavy Cisco shop) experience.
• Experience working on Cisco Catalyst Series 3750, 4500, 4900, 6500; Nexus 2000 and 5000 series switches.
• Extensive work experience with Cisco Routers, Cisco Switches, Load Balancers and Firewalls.
• Experience in layer - 3 Routing and layer-2 Switching. Dealt with Nexus models like 5K, 2Kseries, Cisco router models like 7200, 3800, 3600, 2800, 2600, 2500, 1800 series and Cisco catalyst 6500, 4500, 3750, 3500, 2900 series switches
• Knowledge of implementing and troubleshooting complex layer 2 technologies such as VLAN Trunks, VTP, Ether channel, STP, RSTP and MST. Implementation of HSRP, VRRP for Default Gateway Redundancy
• Worked with automation tools and different methods according to requirement. Also worked with IXIA and Spirent test.
• Involved in troubleshooting of DNS, DHCP and other IP conflict problems.
• Responsible for Check Point and Cisco ASA firewall administration across global networks.
• Experience in working with Cisco Nexus Switches and Virtual Port Channel configuration.
• Worked on F5 LTM, GTM series like 6400, 6800, 8800 for the corporate applications and their availability.
• In-depth knowledge and 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.
• Working experience with Natting techniques on firewalls such as Cisco PIX, Cisco ASA Appliance.
• Strong knowledge of TACACS+, RADIUS implementation in Access Control Network.
• Experience in Designing and assisting in deploying enterprise wide Network Security and High Availability Solutions for ASA.
• Experience working with Cisco Nexus 2148 Fabric Extender and Nexus 5000 series to provide a Flexible Access Solution for a datacenter access architecture Expertise in installing, configuring and troubleshooting Juniper EX Switches (EX2200, EX2500, EX3200, EX4200, EX4500, EX8200 series
• Expertise on JUNOS OS, J Series, M Series, MX Series.
• Enterprise Routing experience using protocols RIP v1 & 2, EIGRP, OSPF and BGP
• Expertise in installing, configuring and troubleshooting Juniper Routers ( E,J,M and T-series)
• Implementing security policies using Cryptography, ACL, SDM, PIX Firewall, IPsec, VPN, and AAA Security on different series of routers.
• Knowledge of implementing and troubleshooting complex layer 2 technologies such as VLAN Trunks, VTP, Ether channel, STP, RSTP and MST. Implementation of HSRP, VRRP for Default Gateway Redundancy.
• Experience with different Network Management Tools and Sniffers like Wireshark (ethereal), HP-Open view, RSA envision, and Cisco works to support 24 x 7 Network Operation Center.
• Experience with F5 load balancers andCiscoload balancers (CSM, ACE and GSS).
• Basic and advance F5 load balancer configurations, including migrating configurations fromCiscoACEto F5 and general troubleshooting of the F5 load balancers
• Excellent customer management/resolution, problem solving, debugging skills and capable of quickly learning, effectively analyses results and implement and delivering solutions as an individual and as part of a team.
• Efficient at use of Microsoft VISIO/Office as technical documentation and presentation tools.
• ConfigureVRRP & GLBP andVLANTrunking802.1Q & ISL, STP, Port Security on Catalyst 6500 switches.
• Knowledge of JUNOS platform and worked with IOS upgrade of Juniper devices.
• Experience with different Network Management Tools and Sniffers like Wireshark (ethereal), HP-Open view, RSA envision, and Cisco works to support 24 x 7 Network Operation Center.

TECHNICAL SKILLS

Routers: (1800, 2500, 2600, 2800, 3600, 3800, 7200).

Cisco Switches: (2900, 3500, 4000, 4500, 5000, 6500, Nexus 2k, 5k ).

Routing Protocol: (BGP, iBGP, OSPF, EIGRP, RIP), Routed Protocol TCP/IP.

Operating Systems: Cisco IOS, Cat-OS, Nexus-OS

Management tools: SNMP, Syslog, Sniffer, and Wire shark, HP Service Center 6.8, QIP

LAN Technology: VLAN, VTP, Inter-VLAN routing, ISL, dot1q, STP, RSTP, PVST, HSRP, GLBPVRF, Ethernet, Port security.

WAN Technology: Frame Relay, X.25, E1/T1/DS1/DS3, PPP, MPLS

Network Security: Knowledge of Cisco ASA, Layer 2 Security, VPN, IPsec and load balancing, VOIP

Network Management: SNMP v2, Cisco Works NCM, 3Com Network Analyzer, MRTG, Solar Winds NPM, TACACS, PCI Compliance Implemented traffic filters using Standard and HPNA,NMtools,NETISM. Extended access-lists, Distribute-Lists, Prefix-List and Route Maps.

Documentation: Microsoft Office, Visio

PROFESSIONAL EXPERIENCE

Confidential, Redmond, WA

Sr. Network Engineer

Responsibilities:

• Troubleshooting issues related to Layer 1/2 skills like switching / routing, WAN /Hardware and critical network links by coordinating with the vendor.
• Installing and configuring new cisco equipment including Cisco catalyst switches Nexus 5548 and Nexus 2k as per the requirement of the company.
• 24x7 on-call escalation support as part of the security operations team.
• Working configuration of new VLANs and extension of existing VLANs on/to the necessary equipment to have connectivity between two different data centers.
• Extensively working with VLAN and VxLAN
• Managing and providing support to various project teams with regards to the addition of new equipment such as routers switches and firewalls to the DMZs.
• Worked extensively in Configuring, Monitoring and Troubleshooting Cisco's ASA 5500.
• Experience in migration of VLANS.
• Handling enterprise outages effectively and driving towards the resolution. Coordination of fault escalations in conjunction with the 1st high-level technical management of high priority or technically complex calls.
• Working with Capacity management on network bandwidth utilization reporting of the sites WAN link and vendor co-ordination for new site turnovers / WAN links.
• Preparing Metrics report detailing on SLA performance of tickets and process quality report to analyze team performance & discussion on the improvement areas (By monthly).
• Providing training to new comers and effectively working towards a process quality improvement in the Team.
• Responsible for Cisco ASA firewall administration, Rule Analysis, Rule Modification.
• Supporting EIGRP and BGP based on the network by resolving level 2 problems of internal teams & external customers of all locations
• Performing troubleshooting on slow network connectivity issues, routing issues that involves OSPF, BGP and identifying the root cause of the issues.
• Extensive hands-on experience with complex routed LAN and WAN networks,routers and switches.
• Hands-on experience with Ether Channel, Spanning Tree, Trunking, ACLs, Syslog. Experience in the setup of HSRP, Access-Lists, and RIP, EIGRP, and tunnel installations.
• Proficiency in configuration of VLAN setup on variousCiscoRouters and Switches.
• Work assigned tickets to determine the point of failure and resolve problems remotely utilizing available tools and other Operation Center resources.
• Provide escalation support to L1 members ofnetworkteam.
• Worked with different ISP globally for any WAN circuit and BGP routing issues. Opening up cases for CE routers, Riverbed optimizer issues.
• Work & escalate problems effectively in order to meet customer SLA's (service level agreements).
• Perform problem management and root cause analysis for customers as required.
• Efficient at use of Microsoft VISIO/Office as technical documentation and presentation tools.

Confidential, Austin, TX

Sr. Network Security 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 switches. Also worked with ASR 1K and 7K.
• Configured networks using routing protocols such as RIP, OSPF, BGP and manipulated routing updates using route-map, distribute list and administrative distance for on-demand Infrastructure.
• Configured OSPF redistribution and authentication with type 3 LSA filtering and to prevent LSA flooding.
• Configured OSPF over frame relay networks for NBMA and point to multipoint strategies.
• Implementing traffic engineering on top of an existing Multiprotocol Label Switching (MPLS) network using Frame Relay and Open Shortest Path First (OSPF).
• Provided redundancy in a multi homed Border Gateway Protocol (BGP) network by tunings AS-path.
• Implemented Hot Standby Router Protocol (HSRP) by tuning parameters like preemption.
• Implemented various OSPF scenarios on networks consisting of 7600 routers.
• Responsible to work on Juniper M320, T640 and other MX series Juniper devices.
• Configured policy based routing for BGP for complex network systems.
• Configured Multiprotocol Label Switching (MPLS) VPN with Routing Information Protocol (RIP) on the customer’s Site.
• Tuned BGP internal and external peers with manipulation of attributes such as metric, origin and local Preference.
• Cisco Secure Access Control Server (ACS) for Windows to authenticate users that connects to a VPN 3000 Concentrator.
• Worked on FTP, HTTP, DNS, DHCP servers in windows server-client environment with resource allocation to desired Virtual LANs of network.
• Responsible for day to day management of Cisco Devices, Traffic management and monitoring.
• Also involved in designing and implementing IP MPLS network.
• Involved in provide higher technical support to NOC and other operation teams regards to IP/MPLS infrastructure.
• Helped team members in configuration of Juniper 4350, 6350, and 2320 routers as well as EX 2200, 4200, 6200 and 8200 switches.
• Member of Network testing team. Also worked with Qos.
• Responsible for Manual testing, reporting defects and working closely with development in narrowing down issues.
• Worked with automation tools and different methods according to requirement. Also worked with IXIA test. Also used different tools like ANUE and JDSU.
• Developed the necessary libraries for the different to run different Network test.
• Responsible to run different kind of Network test. This includes MPLS, BGP, SNMP, and Firewall. Also worked with testing with traffic generator.

Confidential, Stamford-CT

Network Specialist

Responsibilities:

• Assisted in troubleshooting LAN connectivity and hardware issues in the network of 100 hosts.
• Studied and analyzed client requirements to provide solutions for network design, configuration, administration, and security.
• Involved in troubleshooting IP addressing issues and Updating IOS images using TFTP.
• Maintained redundancy on Cisco 2600, 2800 and 3600 router with HSRP.
• Created a backup and recovery policy for software application and verified peripherals are working properly.
• Monitor performance of network and servers to identify potential problems and bottleneck.
• Performed RIP & OSPF routing protocol administration.
• Interacted with support services to reduce the downtime on leased lines.
• Troubleshoot problems on a day-to-day basis & provide solutions that would fix the problems within their Network.
• Monitor the operability and reliability of the network.
• Maintenance and Troubleshooting of connectivity problems using Ping, Trace route.
• Managed the IP address space using subnets and variable length subnet masks (VLSM).
• As a Team member also worked with F5 load balancer and SONET technology.
• Responsible to help team for troubleshoot, configure and resolve the issues regarding F5.
• Support design and planning of Juniper MX, EX and TX Series network routing products within the Customer infrastructure.
• Support ongoing efforts in defining best practice policies for Juniper product applications used by Customer.
• Proactively perform corrective maintenance for IP/MPLS network.
• Review and evaluate all ITC technical documents related to IP/MPLS network.
• Helped team to build up SONET Networks.
• LAN cabling in compliance with CAT5 standards.
• Responsible to configure and troubleshoot the windows 2003 and 2008 servers.
• Worked along with the team in ticketing issues.
• Daily responsibilities included monitoring remote site using network management tools, assisted in design guidance for infrastructure upgrade & help LAN administrator with backbone connection and connectivity issue Other responsibilities included documentation and support other teams.

Confidential

Network Engineer

Responsibilities:

• Responsible for the configuration, implementation and operation of Cisco 3745 routers Cisco 6509 and 3560 L2/L3 switches.
• Removed Cisco 3600 and 2600 series routers and Cisco 2900 series switches from the current infrastructure and replaced them with the Cisco 6509 or 3560 L2/L3 switches.
• Configured RSTP, MST and used VTP with 802.1q trunk encapsulation. Provided port binding and port security wherever required. Provided router redundancy through HSRP.
• Configured ether channels using PAgP and LACP.
• Designed ACLs, VLANs, troubleshooting IP addressing issues and taking back up of the configurations on switches and routers.
• Provided testing for network connectivity before and after install/upgrade.
• Switching related tasks included implementing VLANS and configuring ISL trunk on Fast-Ethernet and Gigabit Ethernet channel between switches.
• Experience in Cisco switches and routers: Physical cabling, IP addressing, Wide Area Network configurations (Frame-relay and ATM).
• Performed troubleshooting, while maintaining trouble ticket tracking, following internal/external.
• Escalation procedures and customer notifications.
• Design service for /upgrade/configure ALU’s IP/MPLS products e.g. 7705 SAS, 7210 etc.
• Configured Cisco Routers for OSPF, IGRP, RIPv2, EIGRP, Static and default route.
• Worked on HSRP and GLBP for first hop redundancy and load balancing.
• Configured the Cisco router as IP Firewall and for NATting.
• Prepare, update, and maintain technical and logistical network documentation.
• Configuration, Management, Troubleshooting of Network devices (Routers, Switches). Maintained the Telecommunication Connectivity using DSL and T1 Lines.
• Worked on Routers Cisco 2620, Cisco 3750, and Cisco 2950 Switches & Link sys wireless access points.
• Worked on Windows server 2003. Responsible to configure, troubleshoot and installing application the Windows 2003 servers.
• Maintained complex LAN/WAN networks with several VLANS and provided support for routing protocols.
• Managed IP addressing and implemented IP Access Lists.
• Configured and troubleshoot VLAN, VTP, STP and Trunks.
• Installing and configuring protocols like TCP/IP and Internet protocols including Local Area Networking, routing and HTTP.
• RMA’s and provided 24x7 supports.
• Member of Network Test team and responsible for routine Network test.
• Responsible for resolve any issue in routine Network test and need to escalate higher technical team, if there is any major issue.
• Worked on comprehensive test strategy and test plan based on the features to be tested, with focus on customer deployment and use-case scenarios.
• Worked with cross-functional teams throughout the project life cycle.

Confidential

Network Engineer

Responsibilities:

• Provided Level 1 Support for Broadband Connection to Virgin Media customer
• Worked As a Technical Support Executive under Virgin Media.
• Received inbound calls of technical nature, independently resolved customer complaints, concerns and inquiries regarding their Internet connection.
• Managed LAN and Wireless Network and performed troubleshooting On LAN, WLAN, Customer Modems (NTL 250, TERAYON, and MOTOROLA) And CPE Router (Cisco-Linksys, Belkin, D-LINK and Dynamode).
• Set up Home Network and provided troubleshooting and full support on virgin- media security Software (PC-guard).
• Troubleshoot a wide range of technical support issues and connectivity problems such as authentication, connection speed, e-mail configuration, and loss of synchronization.
• IOS upgrades on catalyst series switches like 2900, 3560, 3750.
• Troubleshoot TCP/IP problems and connectivity issues in multi-protocol Ethernet environment.
• Implemented trunking protocols like 802.1q on 3750 switches.
• Configured ACLs to provide accessibility and restrict unauthorized users.
• Involved in maintaining STP, RSTP and PVST+ for the catalyst switches I worked on.
• Configured and maintained RIP, OSPF and routing protocols on 2600 and 3600 series Cisco routers.
• Maintaining and troubleshooting of connectivity problems using Ping, Traceroute.
• Assisted in racking and stacking.
• Technical assistance for LAN/WAN management and customer issues.