SUMMARY:

• 7+ Plus years of working experience in network design, Implementation, troubleshooting of complex networking system.
• Expertise is in supporting WAN & LAN connectivity of enterprise networks with MPLS WAN links.  
• Experience in operational support like handling trouble tickets, proposal and implementation of change requests.
• Hands on experience on configuring & troubleshooting EIGRP, OSPF, & BGP routing protocols.
• Hands on experience on configuring & troubleshooting IP Sec and GETVPN.
• Hands on experience on F5 load balancer.
• Expertise in Cisco switches - layer-3 Routing and layer-2 Switching. Dealt with Cisco router models such as ASR 1000 series and 7200, 3900, 3600, 2900, 2600, 1900 series and Cisco switch models 6500, 4500, 3750, 3500, and 2900 series.
• Working knowledge of CISCO NEXUS data center infrastructure with 5000 and 7000 series switches includes (5548, 7010) & Fabric Extender (2224, 2248) 
• Excellent working knowledge of TCP/IP protocol suite and OSI layers.  
• Hands on experience in installing and configuring DNS and DHCP server. 
• Experience with Firewall Administration, Rule Analysis, Rule Modification
• Experience with Administration of Cisco Secure ACS (TACACS+ and RADIUS) and ISE.
• Implemented the Cisco Wireless Controllers and Access points.
• Experience with Administration of Aruba Wireless Controllers and Access points.
• Designed and Configured the Guest Wireless using Aruba Clearpass.
• Experience with Administration of Riverbed Products Include OPNET.
• Experience in Network Management tools and sniffers like SNMP, HP-Open view, Wireshark and Cisco works to support network Operation Center. 
• Hands on experience on IOS upgrade of Cisco catalyst switches, Nexus switches & Routers.
• Having good knowledge in designing the network architectures.
• Configuration of VLANs (virtual LANs), Multilink, VSS, HSRP, STP and MST.
• IP Addressing, Sub Netting, Patting and Natting according to the requirement.

Technical Skills:

Switching:

Trunking protocols - ISL, 802.1Q. V.T.P., Switch ports Aggregation protocol - Ether channel, Spanning tree protocols - STP, RSTP, PVST+, and MST.

Gateway redundancy protocols - HSRP, VRRP, GLBP. LAN Security with 802.1x, DHCP snooping, DARP inspection, Private Vlans. Wireless Lan administration.

Nexus: CFS, VPC, VDC, ERSPAN

Switches: Cisco Nexus 7K, 5K, cat65xx, 4K, 450x, 37xx, 29xx

Routing: RIP, IGRP, EIGRP, OSPF, BGP, GRE, NAT, Multicast routing, VPN, VRF, Distribution lists, Route Maps, Route Redistribution, MPLS

Routers: Cisco 72xx VXR, 38xx,29xx, 19xx series ASR 10xx series

Security: IPSEC, SSL, 802.1x, AAA, TACACS +, RADIUS, SSH

Tools: Cisco works, Cisco ACS, Net flow, Wireshark, MS Visio.

PROFESSIONAL EXPERIENCE:

Confidential,

Network Engineer

Responsibilities:

• Handling & Maintaining complete Datacenter Infrastructure and remote sites. Handled L3 Escalations and Network Troubleshooting.
• Configuration Cisco routers & switches with BGP and OSPF routing protocols and GETVPN.
• Network Admin for Cisco Secure ACS and ISE
• Implementing the firewall change orders in time as per request.
• Handling and troubleshooting the priority incidents with in SLA.
• Coordinating with IT CoE’s for any new implementing process or any process migration.
• Attending weekly bridge calls for discussing the activities which was done in the week.
• New Installation, redundancy checks & IOS up gradation etc. in weekends. Troubleshoot and resolve the Confidential ’s problem within SLA.
• Maintaining the Uptime of the LAN and WAN.
• Preparation of RCA (Root Cause Analysis) for all problems.
• Proposed single & Redundant Core Architectures for their feasibility of upgrading the complete Network infrastructure setup.
• Responsible for F5 Load Balancer LTM and GTM
• Implemented VLAN’s in the network and segregate the industrial traffic to improve performance.
• TAC analysis preparation.
• Network Admin for Aruba wireless controllers and Access points.
• Designed and Implemented the Guest Wireless using the Aruba Clearpass.
• Implementation of HP management applications to include Network Node Manager (and associated software plug-ins), Network Automation, Network Performance Server.
• Worked on Riverbed devices for WAN bandwidth Optimization in the data centers for the sensitive market data applications.
• Delivered Departmental Efficiency through advanced engineering, technical support, and documentation procedures.

Confidential,

Engineer - Network Management

Responsibilities:

• Handling & Maintaining complete remote sites. Handled all L2 escalations and Network Troubleshooting.
• Implementing the change orders in time as per request.
• Handling and troubleshooting the priority incidents with in SLA.
• Troubleshoot and configure Cisco 6500, 4500, 3750 & 3560 switches.
• Install new 6500, 4500 & 3750 switches and 3750 stack switches.
• Troubleshooting and configuring Nexus 3K & 5K switches.
• Upgrade IOS on switches to 6500, 4500, 3750, 3560 switches & Nexus 5k switches.
• Configure new Vlans with HSRP and troubleshoot HSRP & Spanning tree issues.
• Configure and troubleshoot OSPF on Core switches.
• Configure and manage BGP and advertise required network subnets on network.
• Manage BGP & WAN link between datacenter and remote sites.
• Convert Branch WAN links from TDM circuits to MPLS and to convert encryption from IPSec/GRE to GetVPN.
• Experience on a mesh 6500 and 5500 series routes and switches to support the core trading system. Involved in designing data communications and networks utilizing that utilize a mixture of frame relay, point to point T1, T3 & OC3 lines
• Migrate and upgrade IOS Datacenter switches and WAN devices.
• Troubleshoot and resolve routing issue.
• Handling and troubleshoot wireless issue and new access points implementation.
• Configuring IPSEC VPN (Site-Site to Remote Access) on SRX series firewalls
• Working on Network Security policies and implement it across all the firewalls Ensuring Site level redundancy. Ensuring network devices redundancy.

Confidential

Network Engineer

Responsibilities:

• Review and approve changes raised by planning & engineering team.
• Implemented new ultra-secure networks in multiple data centers that included Cisco 6500 series, Juniper security devices, and F5 Big IP’s.
• Implement changes in respective change windows.
• Trouble shoot supplier IPSec VPN tunnel issues and resolve the issues.
• Handling and troubleshooting the priority incidents with in SLA.
• Implemented Voice VLANS, UDP, SIP, and RTP and provide QOS by DSCP and IP Precedence.
• Used DHCP to automatically assign reusable IP addresses to DHCP clients.
• Integrate VoIP with PSTN and setup voice Gateway ensuring QOS for Cisco based Voice over IP and CDR for voice call Accounting.
• Migration of Devices to new Nexus switches and firewalls to new ASA 5555 series.
• Upgraded IOS on Nexus 7K switches and ASA firewalls.
• Configure and troubleshoot OSPF on Core switches.
• Configure BGP peers and advertise required network subnets on network.
• Maintain & configure F5 load balancer devices.
• Trouble shoots and resolves IPSec VPN Issues.
• Maintain datacenters.
• Created network diagrams and documented the traffic flow.
• Working on Network Security policies and implement it across all the firewalls Ensuring Site level redundancy. Ensuring network devices redundancy.
• Coordinate with planning & engineering team on new migrations and implementations.
• Attending weekly bridge calls for discussing the activities which was done in the week and upcoming implementations and migrations.

Confidential

Engineer, Network Management

Responsibilities:

• TAC analysis preparation.
• Detailed documentation done for present entire Genpact LAN & WAN data network on its stability, reliability and performance.
• Help negotiate hardware, software, and circuit contracts for customers
• Redesign customers office copper and fiber cable plant for scalability
• On present network improved WAN links performance between WAN
• Deployed CISCO ASA 5520 in place of PIX and configured remote VPN’s.
• Deployed CISCO 3845 in place of 3640 with less down time to increase the performance and reliability.
• Deployed CISCO 3750 in place of 3508 Switches with less down time.
• Initiated network infrastructure upgradation project.
• Recommended and implemented best practices in data network management.
• Managing all network devices at four sites.
• Recommendations given for data network based on current and future business needs.
• Implemented 6509 core switch and configured VLANS and routing.
• Provided network operational support
• Implemented legacy autonomous Cisco wireless infrastructure to 4404 Wireless LAN Controller.
• Performed 802.11a/g/n Wireless Site Survey and Design using Airmagnet suite of tools that included Wireless Survey Pro and Spectrum Analysis.
• Implemented CISCO 1242 Access points at Genpact for the laptop and other mobile users.
• Documentation done throughout the process of the up gradation and gave Knowledge transfer to the local team.
• Diagnose and Troubleshooting network problem over WAN and LAN in ISP level.
• Network Monitoring: Checking of all the router interfaces, Latency, CPU Utilization, Bandwidth Utilization and network related Errors, Backup for configuration, Change management, Incident Logs.
• Installing, configuring and troubleshooting of routers
• Configuration of RF devices such as subscriber units and access points and troubleshooting of customer WAN issues.
• Design and execution of installation and configuration of LAN/WAN as per organizational requirements
• Performing LAN and VLAN troubleshooting
• Planning, designing and configuring IP Addresses, Subnet masks and gateway addresses for the customers.
• Coordinating with vendors towards the entire erection and installation process.
• Maintaining master list of customers.
• Preparing Customer network diagrams.