SUMMARY:

• Network Engineer with 8+ years of Professional experience in designing, implementing and troubleshooting Cisco enterprise and data networks for mission critical business applications.
• Excellent working experience in implementing network solutions using TCP/IP protocol suite and OSI layers, system security, firewall infrastructure,network architecture and design.
• Successfully implemented several Cloud network systems for HR, Telecom, Health care business enterprises.
• Experience in troubleshooting both connectivity issues and hardware problems on Cisco - based networks and knowledge in working of Palo-Alto Networks.
• Experienced inagilemovement, attended daily scrum meetings as well as weekly and fortnight sprint meetings up on the manager’s request.
• Substantial experience in installing, configuring and troubleshooting Cisco 7600, 7200, 3800, 3600, 2800, 2600, 2500 and 1800 series Routers, Cisco Catalyst 1900, 2900,3560,4900, 6500 series switches and Nexus 5K,6K,7K and 9K series switches.
• Troubleshoot using ARP/RARP, ICMP, and SNMP protocols.
• Familiar in working with Load Balancers like F5 Big IP LTM and Cisco ACE 4710
• Skilled in working with Cisco ASA 5500 series firewall and Checkpoint firewalls.
• Experienced in working with Cisco Meraki .
• Experience in working with transport and core networks background and related OSS systems engineering.
• Workedwith TUFIN for pushing firewall policies and monitoring the logs.
• Experienced in using FIREMON firewall monitoring to update firewall policies and identifying the source IP’s and blocking them.
• Experience in working with Cisco Nexus 9372 PX and Fabric Extender 2248 TP with static pinning.
• Migrated core data centre network from 6509 to Nexus 9K (NX-OS mode).
• Hands-on experience on Cisco wireless controllers (Model 2504) and Access points (1602 and 1242)
• Proficient in configuring and troubleshooting RIP V1 & RIP V2, OSPF, EIGRP, BGP and Integrated IS-IS routing protocols.
• Skilled in designing and configuring of layer 2 & layer 3 networking features such as VLAN, VTP,ISL,STP,RSTP, PVST, RPVST, MST, Port Security, L2TP, VLAN and SIP trunking using 802.1Q,along with troubleshooting of inter-VLAN routing and PSTN calling tests.
• Strong command on IPV4 addressing, Subnetting and VLSM and familiar with IPV6 addressing.
• Proficient in installing and configuring DNS and DHCP server.
• Experienced with Citrix NetScaler and Cisco Open DNS
• Experienced with Air watch and Duo MFA for mobility management.
• Installing and configuring WAN networks using PPP, HDLC, and Frame Relay.
• Experience in configuring and troubleshooting site-to-site and remote access VPN solutions.
• Management and monitoring by use of SSH, Syslog, SNMP and NTP
• Familiar with the working of Cisco Unity, Call Manager, and UCCX.
• Working knowledge of MPLS services, NAT, sub-netting, also including WINS, LDAP, HTTP, HTML, HTTPS, TCP/IP, UDP, SNMP, IPSEC, PPTP
• Implemented traffic filters using Standard, Extended and Named access-lists.
• Experience with network monitoring tools such as Solar winds, HPNNMI and EMC smarts and network optimization tools like steel head.
• Good understanding of incident management, change management and root-cause analysis
• Experienced in incident management tools like Service Now and BMC remedy
• Good understanding of single mode, multi-mode fibre, and transceivers.
• Familiar with utilizing ksh scripts and bash and iRules.
• Analyse and define problems, prioritizes workflow, multitask, meet deadlines, remain flexible and maintain confidentiality.
• Understanding of latest security trends, vulnerability assessment techniques and attacks like DDOS and Man in the middle attack.
• Knowledge of IPS/IDS, Proxy and Linux Administration.
• Familiar with encryption algorithms like AES and RSA
• Extensive experience using Microsoft suite like Word, Visio, Excel, PowerPoint
• Highly motivated and diligent with the ability to work independently or as an integral part of a team and adequate in working with minimum supervision.

TECHNICAL SKILLS:

LAN Technologies: Ethernet, Fast Ethernet, Gigabit Ethernet, LWAP s, Token Ring, ATM LAN Emulation, FDDI, CDDI.

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

Routing Protocols: OSPF, EIGRP, BGP, RIP v1&v2, Policy Based Routing, Route Filtering, Redistribution, Summarization, and Static Routing

Switches: Nexus 5548, 5596, 6000, 7009, 7018; Cisco Catalyst: 6506, 6509, 4928, 4948, 4507, 4510, 3750, 3560, and 2960

Switching Technologies: VLANs, Inter-VLAN routing and Port Channels, VTP, Spanning Tree Protocols like PVST+, RSTP+, Multi-Layer Switching, Port security, VSS, CED and DCEF

Routers: Cisco 7606, 7609, 3845, 3660, 2921, 2691, 1812

Network Security: ASA 5550/5540 and Checkpoint Firewalls, Access Control Lists, IPSec, IDS, and IPS.

Load Balancers: F5 Network (Big-IP) LTM 8900 and 6400 F5 Big IP LTM and Cisco ACE 4710Protocols HSRP, GLBP, VRRPNEXUS featuresVDC, VPC, FEX, F & M Series line cards

VPN Technologies: GRE Tunnelling, Remote Access VPN, Site-to-Site VPN

Network Management: SNMP, Cisco works LMS, Cisco MWTM, and ALU 5620 SAM. Service Now and BMC remedy

Operating Systems: Linux 2.6 reportsMicrosoft Visio, Microsoft Excel, Microsoft Word.

IP Services: L2VPN, L3VPN, VPLS, VPRN, QOS

Simulation Tools: CSM, ASDM, RSA Envision, Wireshark, GNS3, and CCP

PROFESSIONAL EXPERIENCE:

Confidential, Wayzata, MN.

Network Engineer

Responsibilities:

• Handled escalations and resolved technical issues according to SLA
• Performed daily function of network equipment lifecycle: receiving, part identification, testing, RMA, upgrade, configure, storage, and deployment
• Tested Cisco IOS, IOS upgrades, configuration upgrades, implemented VLANS, Sniffers. Maintained the following Cisco platforms 7600, 7500, 7200, 7000, 3560, 2900, 2801, 2000, ASA55XX, Catalyst 6500, 4500, 3560 and 2900
• Implementing security policies using ACL, Firewall, IPSEC, SSL, VPN, IPS/IDS, AAA (TACACS+ & RADIUS)
• Monitored the network logs using FIREMON and TUFIN.
• Provided network access to more than 3000 people in office both wired and Wireless.
• Implemented 6807-XL as regular Layer3 devices and for user access used 3850 switches in IDF rooms.
• Worked with fabric extenders on cisco nexus 2000 and upgraded the Ios versions.
• Experienced in working with stack-wise and also virtual machine fabric extenders. Also Configured 3850 switches to serve users with redundancy
• Conducted root cause analysis on Network Incident and configured VSS in 6k and 7k catalyst series to avoid a single point of failure.
• Worked with Airwatch for mobility management of network devices.
• Performed version 12.2 IOS upgrades for 3750 stacked switches and 3550 stacked switches
• Hook up T1 circuits, run configuration and setup the routers and switches, for the clients
• Experienced in complete LAN, WAN development (including IP address planning, designing, installation, configuration, testing, maintenance etc.)
• Configured SIP trunk interfaces as well as ISR gateways.
• Experienced in proposing network design and Products bases on requirements-capacity, usage.
• Experience working with Cisco Nexus 2148 Fabric Extender and Nexus 5000 series to provide a Flexible Access Solution for datacentre access architecture.
• Installation and maintenance of Cisco Layer 3 switches such as 3750, 4500 X, 6500 in the multi-VLAN environment.
• Experienced in working with cisco unified communications.
• Worked with DUO MFA for authentication.
• Provided WAN network Optimization and improved network performance with steel head.
• Maintenance and configuration of Cisco ASR1000 series and 7200VXR routers at the data centre and deployment of 3900, 3800, 2951 and 2821 for branch connectivity.
• Dealt with monitoring tools like network packet capture tools like Wire-shark etc.
• Experience with upgrading firmware of Cisco UCS and Nexus switches.
• Performed migration from Site-to-site GRE tunnels network to MPLS-based VPN for customer's WAN infrastructure.
• Configured BGP, EIGRP and OSPF and Policy based Routing.
• Configured IP routing, access control lists, DNS/DHCP, quality of service, and VLANs according to internal documentation.
• Maintenance and troubleshoot F5 and CSS Load balancers for efficient performance and to increase reliability through redundancy.
• Monitoring the network using the network monitoring tools like Solar Winds and Omni centre to ensure network availability and perform necessary maintenance to support network availability.
• Used Protocol analysis tools to assess and pinpoint networking issues causing service disruption.
• Extensive knowledge and troubleshooting in data communication protocols and standards including TCP/IP, UDP, IEEE 802.3, Token Ring, Cable Modem, ADSL, Multilayer Switching, DoD standards

Network Engineer

Responsibilities:

• Experienced in configuring and implementing of composite Network models consists of Cisco7600, 7200, 3800 series routers and Cisco 2950, 3500, 5000, 6500 Series switches.
• Networks using routing protocols such as RIP, OSPF, BGP, EIGRP and manipulated routing updates using route-map, distribute list and administrative distance.
• Experienced in Switching Technology Administration including creating and managing VLANS’s, Port security, Trunking, STP, Inter-VLAN routing, LAN security etc. Deploying Layer 2 security in Server Farms by configuring variousswitches for 802.1x port-based authentication.
• Configured OSPF redistribution and authentication with type 3 LSA filtering 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.
• Worked on documentation and created Visio diagrams using MS Visio.
• Worked on F5 BIG-IP LTM 8900, configured profiles, provided and ensured high availability.
• Worked on F5 and CSM load-balancers deploying many load balancing techniques with multiple components for efficient performance.
• Troubleshooting issues related to Layer 1/2/3 skills like switching / routing, WAN /Hardware, and critical network links by coordinating with the vendor.
• Experience working with Cisco IOS-XR on the ASR9000 devices for MPLS deployments.
• Troubleshooting various network security related issues using Cisco SDM.
• Managed mobile devices using Airwatch.
• Monitoring links using Solar Winds and Syslog and network optimization with steel head.
• Performed switching technology administration including VLANs, inter-VLAN routing, Trunking, port aggregation
• Experience with Cisco ASR’s, Catalyst 6500 series switches, 2800 series, and 3800 series, 2900 series and 3900 series routers.
• Configured VPC, FEX and VDC’s on Nexus 5K, 7K and familiar with 9K.
• Coordinate with Server, Security, Application teams along with 3rd party vendors to provision and setup third party servers, network devices in Data Centre environment.
• Worked on ASA 5510/5520 and catch point firewalls configuration and Implementation for the network.

Network Engineer

Responsibilities:

• Handled SRST and implemented and configured the Gateways
• Constructed dial plans in the Call Manager and also remotely troubleshot various implementation problems.
• Experienced in L1/L2 Switching Technology Administration including creating and managing VLANs, Port security, Trunking, STP, Inter-VLAN routing, LAN security.
• Upgraded load balancers from Radware to F5 BigIPsv9 which improved functionality and scalability in the enterprise. Managed the F5 Network (Big-IP) LTM 8900 and 6400 appliances to include writing iRules, SSL offload andthe everyday task of creating WIP and VIPs.
• Configuring ASA 5550/5540 Firewalls.
• Configuring STP for switching loop prevention and VLANs for data along with Configuring port security for users connecting to the switches.
• Worked on commissioning and decommissioning of the MPLS circuits for various field offices.
• Working on Network design and support, implementation related internal projects for establishing connectivity between the various field offices and data centres.
• Ensure Network, system and data availability and integrity through preventive maintenance and upgrade.
• Responsible for service request tickets generated by the helpdesk in all phases such as troubleshooting, maintenance, upgrades, patches and fixes with all-around technical support.
• Deployment of Cisco 6500 switches in standalone and VSS modes with SSO and NSF
• Supporting EIGRP, OSPF, and BGP-based network by resolving level 1 &2 problems of internal Sites.
• Providing daily network support for Global-wide area network consisting of MPLS, VPN, and point-to-point site.
• Experience working with Network management software NSM.
• Design and configuring of OSPF, BGP on Cisco Routers and SRX Firewalls.
• Implementing and Maintaining Network Management tools like Service Now and BMC remedy

Network Engineer

Responsibilities:

• The key responsibility of LAN and WAN maintenance and troubleshooting any network related problems.
• Also experienced in upgrading the necessary IOS and making sure that there is high data availability.
• Maintained the software for the Citrix and find the defects in the network and satisfied the customers when they have any issues on this.
• Worked in data centre application optimization services with the help of Citrix presentation server for load balancing, server health balancing etc.
• Helped in setting up the GRE tunnelling over IPSEC between to data centres.
• Provideda high level of security to the network by installing ASA 5510 along with ACLs.
• Extensively worked on layer 2 features like STP, VLAN, and VTP and implemented them on new switches and used to troubleshoot any issues.
• Tasks included in performing network administration issues like configuring RPVST+, Port security etc.
• Also gave technical support in the issues which involved tasks of debugging OSPF and HSRP features.
• Dealt with troubleshooting the EIGRP and OSPF protocols during the process of migration and establishing new client setups.
• Coordinate with peers and customers dealing with wireless network innovations also responsible for maintaining wireless IPS infrastructure.
• Created Ksh scripts for transferring files between application server and Data base server
• Created bash programs to enable consistent server configurations in all servers.
• Used ksh scripts for running network automation processes.
• Used to be responsible for resolving the service request tickets from the help desk which involved in providing entire technical support.
• Had hands on experience on configuring and implementing Prefix-lists, Route-maps, Ether-channels.

Network Engineer

Responsibilities:

• Helped the team to Configure, Manage and troubleshoot 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.
• Maintained complex LAN/WAN networks with several VLANS and provided support for routing protocols.
• Managed IP address and implemented IP Access Lists.
• Configured and troubleshoot VLAN, VTP, STP and Trunks.
• Maintained communications with internal customers during the problem resolution process.
• Maintenance and troubleshooting of connectivity problems using Ping, Trace route.
• Troubleshoot network problems using Wireshark.
• Managed the IP address space using subnets and variable length subnet masks (VLSM).
• Installed LAN cabling in compliance with CAT5 standards.
• Installed and configured protocols like TCP/IP and Internet protocols including Local Area Networking, routing and HTTP.
• Installed wireless access points (WAP) at various locations in the company.
• Monitored remote site using network management tools, assisted in design guidance for infrastructure upgrade & help LAN administrator with backbone connection and connectivity issue.

Jr. Network Engineer

Responsibilities:

• Documented the company’s design, implementation and troubleshooting procedures.
• Monitored the Network performance based on company’s Service Level Agreement (SLA).
• Configured VLANs with 802.1Q tagging according to the Server team’s requirements.
• Performed IOS upgrades on various catalyst series switches and maintained latest IOS versions according to company’s policy.
• Worked on server farm by using the Citrix application servers by providing optimization to the traffic/data flowing across the WAN and caching data at the local WAASs.
• Traffic flow across the enterprise network is maintained in our organization by this Citrix server.
• Responsible for cabling and labelling based on day to day requirement, and Racking & Stacking of network equipment.
• Used to make sure that there is no connectivity related problems using PING and Traceroute .
• Provided Helpdesk support by identifying and escalating the tickets to the specific groups.
• Resolving all computer related problems, such as troubleshooting operating system failure, scheduling and updating virus checks on servers and desktops.