SUMMARY:

• Senior Network engineer with over 7+ years’ experience in Network implementation, Configuration, Troubleshooting, Performing Network analysis, Design and maintaining Enterprise networks by working with multiple vendor Routers, Switches.
• Extensive experience in LAN/WAN technologies, Routing/Switching protocols and Wireless Technologies including TCP/IP protocol suite and multi - protocol routing in Cisco environment.
• Troubleshoot, consult, and solve issues involving LAN/WAN switching and routing technologies such as, Load Balancing Using Port Channels, STP, RSTP, MSTP, VLAN, DHCP, and OSPF.
• Configuring BGP/OSPF routing policies and designs, worked on implementation strategies for the expansion of the MPLS VPN networks .
• Expertise in configuration of Cisco Catalyst Switches of 1900, 2900, 3550,3750,4500,6500, Cisco Routers of 1800,2500,2600,2800,3600,3800,7200,7600 IP addressing.
• Experience working with Cisco Nexus 2148 Fabric Extender and Nexus 5000 series to provide a Flexible Access Solution for a datacenter access architecture.
• Configured Nexus 7010 including NX-OS Virtual Port Channels, Nexus port profiles, Nexus Version 4.2 and 5.0, Nexus VPC peer links.
• 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.
• Basic and advance F5 load balancer configurations, including migrating configurations from Cisco ACE to F5 and general troubleshooting of the F5 load balancers.
• Experience in troubleshooting both connectivity issues and hardware problems on Cisco based networks.
• Configuring VLAN, Spanning tree, VSTP, SNMP on EX series switches.
• Configuring RIP, OSPF and Static routing on Juniper M and MX series Routers.
• Design and configuring of OSPF, BGP on Juniper Routers (MX960, MX480) and SRX Firewalls (SRX240, SRX550).
• Experience in installing and maintaining inventory of Computers hardware, software and licenses.
• Experience in technical documentation with change management using various Microsoft software (Visio, Word, Excel, etc.).
• Configure VRRP & GLBP and VLAN Trunking 802.1Q & ISL, STP, Port Security on Catalyst 6500 switches.
• Have knowledge on various advanced technologies like VOIP, H.323, SIP, QOS, IPv6, and Multicasting.
• Experience in diverse IT disciplines, including networking, technical support, programming, operating systems and system administration
• Dealt with the escalation problems for Routing, Switching and WAN connectivity issues using ticketing system remedy.
• Good knowledge and experience in Installation, Configuration and Administration of Windows Servers 2000/2003, Active Directory, FTP, DNS, DHCP, TFTP, Linux OS under various LAN and WAN environments.
• Proficiency in using and troubleshooting with help of reporting and incident ticketing tools such as ServiceNow, Remedy and ServiceWise .
• Strong interpersonal, organizational communication, customer service & presentation skills.
• Excellent customer management/resolution, problem solving and debugging skills with good verbal/written communications and presentation skills.

TECHNICAL SKILLS:

Cisco Routers: 1800,2500,2800,3600,4400,3700,3800,7200,7600,ASR & CRS series.

Cisco Switches: 2900,3500,3700,4000,5000,6500,4500.

Cisco Wireless: 3700AP, 3800AP, WLC.

WAN Technologies: FRAME RELAY, ISDN T1/E1, PPP, ATM, MPLS, leased lines, DSL modems.

LAN Technologies: Ethernet, Fast Ethernet, Gigabit Ethernet, NAT/PAT, FDDI. Cisco Secure Access Control Server (ACS) for TACACS+/Radius.  

Nexus Routers & Switches:  5k,7k,4948,2811,2600,2911,7609,6509,2960,1841,1941.

Juniper Routers & Switches: J2300, J6300, M7i, M10i. SSG-5, SSG-20 & EX-3200, EX-4200, Ex-8200.

Firewall Checkpoint: Cisco PIX, Cisco ASA.

Switch Models:  CAT 2800s, 3800s, 4500s, 6500s

Switch Series: 3500, 2900.

Security: NAT, PAT, ACLs, ASA (5540, 5505) Firewall, FWSM, ASOM.

Routing: VPLS, MPLS, OSPF, VRRP, HSRP, IGRP, EIGRP, BGP, Redistribution, Static Routing.

Switching: VDC, VPC, VLAN, VTP, STP, RSTP, Ether-channel.

Load balancer: Cisco CSS, ACE, A10 Networks.

Network Tools: Wireshark, QIP.

Network Simulators: Packet tracer, GNS3.

Applications: MS office, Cisco prime, Inflobox, Amazon Redshift.

Documentation: Excel, Outlook, HP open view, MS Visio, MS word.

PROFESSIONAL EXPERIENCE:

Network Architect

Confidential, Albany, NY

• Worked on multiple large-scale WAN projects.
• Demonstrated experience with design, implementation and support of remote access solutions.
• Direct working experience with design, implementation and support of a multi-vendor network environments. Candidate must have experience in configuration and support of Cisco and Nortel routers/switches, Juniper VPNs/firewalls and checkpoint VPN’s/firewalls
• Direct working experience troubleshooting application issues using protocol analysis tools. (i.e. Wireshark, Infinistream, Sniffer)
• Direct working experience with design, implementation and support of Cisco/ Meraki wireless technologies, including both lightweight and autonomous
• Experience in design, implementation and support of QoS and traffic shaping technologies.
• Direct working experience with design, implementation and support of WAN/LAN technologies, including Multicast, RIP, BGP, OSPF, VLANs, Spanning Tree, CDP and Link Aggregation protocols.
• Experience with design, implementation and support of Intrusion Detection and Intrusion Prevention Systems
• Installed and configured Cisco Stratacom switches including the MGX 8850 and configured TDM and SONET transport gear in a high speed Central office environment.
•   Provided training and guidance on SONET, DWDM, ATM, T1/T3 and multiple WAN protocols.
•   Provisioned, tested and troubleshoot SS7, SIP, MGCP, Megaco, H.248, H.323, ITP, IPT, VOIP, QOS, RTP, and T1/T3.
• Upgraded and updated Cisco IOS from 12.3T to 12.4. Used to DHCP to automatically assign reusable IP addresses to DHCP clients.
• Configured IPV6 bypassing on LBG, FWG, ARG and ASA of various locations in order to reduce the load harmony.
• Installed and configured protocols like TCP/IP and Internet protocols on WAN network . 
• Worked with a team to install new GGSN’s and DPC2 upgrade for various locations.
• Configured routing policies, Vlan, Access list, policy-map, Crypto key for various BRC’s and BRP’s.
• Configured HSRP and Vlan trunking 802.1Q, Vlan routing on catalyst 4500 switches and nexus 7k switches.
• Configuring, managing and troubleshooting networks using routing protocols like BGP, RIP, EIGRP, Static routing and other policy based routing.
• Design, and configuring of OSPF, BGP on Juniper Routers and SRX Firewalls
• Implemented changes on existing configurations for the applications on F5 load balancer.
• Implementing firewall rules and Nat rules on the firewalls and troubleshooting flows
• Manage day-to-day operations and configuration of Check Point firewalls 
• Manage project task to migrate from Cisco ASA firewalls to Check Point firewalls.
• Worked extensively in Configuring, Monitoring and Troubleshooting Cisco's ASA 5500/PIX security appliance, Failover DMZ zoning & configuring VLANs/routing/NAT with the firewalls as per the design. 
• Installations and upgrades for Cisco Unified Communication components.
• Configured and performed troubleshooting on link state protocols like OSPF in single area and multiple areas
• Configured juniper ACX 1100, Cisco 3900 & 2900 routers and Cisco 4500 and 3750 catalyst switch using routing protocols such as OSPF and BGP also utilized juniper EX3200, EX 4500, Ethernet switch
• Assist in creating network design standards for hardware and software. Developing and maintain Network Documentation (Visio diagrams, Excel spreadsheets, Word documents, etc).
• Worked on Inflobox to update the DNS host.

Environment: Cisco 2948/3560/4500/3560/3750/3550/3500/2960/6500 switches and Cisco 3640/12000/ 7200/3845/3600/2800 routers, Cisco Nexus 7K/5K, Cisco ASA 500,, RIP, OSPF, BGP, EIGRP, CRS, LAN, WAN, VPN, HSRP,NAT/PAT, IPSEC, TCP/IP, Juniper Routers, SRX, LBG, FWG, ARG, ASA,VOIP,QOS,RTP,Sonet,DWDM,T1/T3.

Sr. Network Engineer

Confidential, Winchester, Virginia

• Delivered high level technical support, including identifying and resolving problems on Cisco supported products for e-Commerce infrastructure, which includes external and internal routing for DMZ servers. 
• Implemented cable multi-service operator (MSO) to capture traditional Telco subscribers with IP telephony and provide relevant QOS.
• Configured EIGRP, BGP, and MPLS, Firewall, QOS by SDM and provide security by Prefix list, Access- List and by Distribution list.
• Integrated Checkpoint and Juniper  firewall into client's existing network to provide security for applications.
• Configuring failover and working on SSL -VPN when in active/standby failover on SRX firewall. 
• Configuration of IPSEC L2L and SSL  VPN connectivity for the projects.
• Implemented new ultra-secure networks  in multiple data centers that included Cisco, Juniper security devices. 
• Responsible for designing and implementation of customer's network and Security infrastructure.
• Involved in complete LAN, WAN, Extranet redesign (including IP address planning, designing, installation, pre configuration of network equipment, testing, and maintenance) in both Campus and Branch networks.
• Assisted with troubleshooting all network issues with routers and switches when necessary and consulted with on call tech as needed for client.
• Validate existing infrastructure and recommend new network designs.
• Installed and maintained Cisco and Load Balancer and documentation.
• Manages network device configurations, logical names and addresses, network design and implementation.
• Configured and designed LAN networks with Access layer switches such as Cisco 4510, 4948, 4507 switches.
• Used Python script to perform tasks required.
• Has expertise in LAN/WAN technologies (fast Ethernet, Layer2 & 3 switched/routed LAN, and Frame Relay).
• Moved Core switches and several non-Cisco devices under strict deadlines to maintain network functionality. 
• Routing Protocols, Networking Layer1, 2, 3 Switching concepts, LAN/WAN technologies, Wireless Networking, TCP/IP concepts.
• Installed and configured DHCP, DNS Server.
• Scheduled preventive maintenance for fire-protection systems, including new protocols. Utilize MS Windows, Word, and Excel for reporting/documenting process. 
• Worked with Cisco and Juniper equipment to troubleshoot various problems.
• Modified router configurations programming with additional VLANs, port assignment.
• Estimated Project costs and created documentation for project funding approvals.
• Satisfactorily Resolved Problems in timely manner with focus on providing a high level of support for all customers. 

Environment: Cisco 7200/3845/3600/2800 routers, TACACS, EIGRP, RIP and Vulnerability Assessment tools like Nessus, Red Hat, Solaris, Juniper VPN's and SSL.

Network Engineer

Confidential, Sunnyvale, California

• Configuring, Operating and supporting the Cisco routers 7200, 3800, 3600, 2600 series, 2500, Cisco ASA5200 series, Cisco catalyst 1900, 2900 series, 3500 series, 3700 series and 6509E series, PIX firewall, AD modem, Cisco Access control server(ACS), VPN Concentrators, Cisco IOS and Cat OS, Cisco ACL. 
• Installed and configured Cisco 2800, 3800 routers and 2950, 3700, 6500 switches.
• Configuring Static, IGRP, EIGRP, and OSPF Routing Protocols on Cisco 1600, 2600, 2800, 3600, 7300 series Routers.
• Design network  and create physical and logical network  layout diagrams
• Configured Site-to-Site IPsec VPN tunnels to peer with different clients and each of client having different specifications of Phase 1 and Phase 2 policies using Cisco ASA 5500 series firewalls. 
• Has expertise in LAN/WAN technologies (fast Ethernet, Layer2 & 3 switched/routed LAN, and Frame Relay).
• Maintained and managed networks running OSPF and BGP routing protocols.
• Configured route redistribution between OSPF and EIGRP in a multi-area OSPF network.
• Enabled STP attack mitigation (BPDU Guard, Root Guard), using MD5 authentication for VTP, disabling all unused ports and putting them in unused VLAN. 
• Daily monitoring of network traffic using sniffers and access logs to troubleshoot and identify network issues.
• Primarily responsible in designing and maintaining the budget for the whole network .
• Implementation of Virtual LANs across Routers and Switches. 
• Implemented and Configured IP Routing Protocols: OSPF, EIGRP, and RIPv2.
• Performed switching administration including VLANs, inter-VLAN routing, trunking, port aggregation.
• Route redistribution and route update manipulation using route-maps, distribute lists and AD manipulation and link negotiation.
• Troubleshooting the Network  Routing protocols (BGP, EIGRP and RIP) during the Migrations and new client connections.
• Configured and resolved various OSPF issues in an OSPF multi area environment.
• Configured and played with various BGP attributes such as Local Pref, MED, Extended Communities, Route-Reflector clusters, Route-maps and route policy implementation. 
• Enabled SNMP traps for our Cacti Monitoring tool to monitor traffic and check the regular health of Servers and Network  Devices 
• Assist in determining network hardware and bandwidth needs.
• Worked with engineering team to resolve tickets and troubleshoot L3/L2 problems efficiently.
• Deploying VoIP phones and providing access to voice and data traffic with QoS policies.
• Preformed IOS upgrades and reconfigured devices afterwards.
• Updated documentation as necessary.
• Worked with Remedy Ticketing tool in maintaining and keep a track of logs/monitor  • Designed and implemented IP Addressing, Subnetting, Route Summarization and Route Distributions 
• Mapped, Network Diagrams and physical identification in MS Visio.

Environment: LAN, WAN, Subnetting, VLAN, VTP, VPN, NAT, OSPF, BGP, EIGRP, Cisco Routers ASR1002X/ 3945/3845/2800/3600 , Load Balancer (BIG-IP), Cisco ASA Firewalls, STP, VLAN, VTP, VPN, NAT, OSPF, BGP, EIGRP

Network Engineer

Confidential

• Worked on Cisco Layer 2 & 3 switches (spanning tree, VLAN).
• WAN Infrastructure running OSPF as core routing protocol.
• Support various Routers like 2600/3600/7200 series routers.
• Use of TCP Dump to troubleshoot access issues.
• Installing service pack upgrades
• Configure Cisco VPN 3000 Concentrator to allow VPN clients.
• Configured authentication in OSPF and BGP.
• Configured and troubleshoot OSPF and EIGRP.
• Troubleshooting IOS related bugs based on past history and appropriate release notes.
• Work on different connection medium like Fiber and Copper Connectivity.
• In-depth expertise in the implementation of analysis, optimization, troubleshooting and documentation of LAN/WAN networking systems.
• Planning and configuring the routing protocols such as OSPF, RIP, and Static Routing on the routers.
• Performed and technically documented various test results on the lab tests conducted.
• Planning and configuring the entire IP addressing plan for the clients' network.
• Assist the certification team and perform configuration of LAN/WAN technologies such as Ethernet, Fast Ethernet, and Gigabit Ethernet.
• Configured port-fast, uplink fast and other spanning tree features.
• Support Complex 6500 /5500 Series Switches.
• Preparation of all Branches Link up time/down time report to maintain SLA with Customer.
• Build and maintain Visio documentations for Clients.
• Managing User accounts using Active Directory.
• Help negotiate hardware, software, and circuit contracts for customers.

Network support technician

Confidential

• 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 ( Confidential, Confidential, and Confidential ) And CPE Router ( Confidential, Confidential, Confidential 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.
• Trained for new employee mentoring, training and coaching.