SUMMARY

• Network Engineer with 8 years of expertise in Designing, Implementing and troubleshooting various Network Technologies.
• Provide scalable, supportable military grade TCP/IP security solutions along with expert TCP/IP network designs that enable business functionality.
• Hands - on experience, specializing in Cisco Environment in Data Center, systems, network and user administration, LAN / WAN and Security.
• Administration, engineering, and support for various technologies including proficiency in LAN/WAN, routing, switching, security, application load balancing, and wireless.
• Experienced in installation, configuration, design and ongoing maintenance of Cisco router and switches.
• Worked on Cisco Catalyst Switches 6500/4500/3500 series,
• Responsible for CheckPoint and Cisco firewall administration across global networks.
• Knowledge of managing, maintaining, administering, troubleshooting high end network devices such as cisco routers switches and firewalls.
• Policy development and planning / programming on IT Security, Network Support and Administration.
• Knowledge of Checkpoint VSX, including virtual systems, routers and switches
• Experience in Network LAN/WAN deployment,
• Experience with DNS/DFS/DHCP/WINS Standardizations and Implementations.
• Cisco ASA Firewalls, Palo Alto Networks Firewalls.
• Network Administration, monitoring networks for vulnerabilities or intrusions.
• Extensive understanding of networking concepts, (IE. Configuration of networks, router configuration and wireless security, TCP/IP, VPN, Content Filtering, VLANs, and routing in LAN/WAN, Ethernet Port, Patch Panel and wireless networks.)
• Experience with Network Redesign for Company Campus Locations and Moving from 6500 based Data Center to Nexus based Data Center.
• Built LAN/WAN TCP/IP network comprised of Cisco Switches (6500, 6509, 7613, 3550, 4900, 2960, 2950, 2900XL), Nexus 2k, 5k, 7k.
• Management and Monitoring by use of SSH, Syslog, SNMP and Bluecoat Proxies.
• Installation, configuration and troubleshooting of DNS and DHCP servers.
• Hands on experience in implementation of Router Redundancy Protocols like HSRP, VRRP and High proficiency in implementation of routing protocols RIP, RIP V2, EIGRP, OSPF and BGP.
• Configured IP addresses and subnet masks of workstations
• Configured Cisco routers and switches to hosts or servers Configured mail exchange servers, and other servers on Microsoft Outlook, and Mozilla Setup email on mobile phones and email exchange servers such as POP, POP3, IMAP, and SMTP.
• A broad understanding of computer hardware and software, including things such as installation configuration, management, troubleshooting, and support.
• Experience in Active Directory, GPOs, File & Print Server, FTP, Terminal Server, NAT, and Exchange Mail Server.
• Knowledgeable about IP Multicast, IGMP, IGMP version 2 and 3, CGMP, IGMP Snooping, PIM-Sparse and Dense Mode, F5/Big-IP Load Balancer.
• Have knowledge on F5 load balancers LTM and GTM series like 6400, 6800, 8800
• Coordinated with network operations center (NOC) for change notifications, alerts and escalation of security incidents.
• Knowledge with Cisco Call Manager, Unified Communications.
• Administration of production Windows Servers infrastructure that includes Domain Controllers, IIS Web Servers, SharePoint, File and Print and FTP/SFTP servers.
• Extensive experience in Windows 2008 R2/2008/2003 Wintel Servers at single or multi domain platforms.
• Proficient in installing and configuring Windows Server 2003, 2008, 2012 and Windows XP, 7 & 8 Professional Client Operating Systems.
• Experience in Microsoft Office Suite, Visio and Outlook

TECHNICAL SKILLS

Networking Concepts: OSI Model, TCP/IP, UDP, IPV4, IPv6, Subletting, VLSM

Routing Protocols: RIP, IGRP, EIGRP, OSPF, BGP, Static Routing, Route Filtering, Redistribution, Summarization

Gateway Load Balancing: HSRP, VRRP, GLBP

Infrastructure services: DNS, ICMP, SNMP, ARP, IRDP, NAT, SNMP, SYSLOG, NTP, DHCP, CDP, TFTP and FTP

Switch Technologies: VLANs, VTP, STP, RSTP,PVST+, DTP, MLPPP, IEEE 802.1q, MPLS, ISL and dot1q, SMTP, VLAN, Inter-VLAN Routing, Light weight access point

WAN Technologies: Frame Relay, PPP, HDLC, (E1/T1/E3T3)

Security: VPN, NAT/ PAT, access-lists, IPSEC, Juniper SRX, TACACS+, RADIUS

Firewall: Cisco PIX, ASA, Juniper Secure Access VPN Appliance, Checkpoint and Palo Alto

Network Management Tools: Wireshark, Net flow Analyzer, Cisco Works, Ethereal, SNMP, and HP open view, OPNET

Load Balancers: Cisco CSM, F5 Networks (Big-IP) LTM 8900, Cisco ACE 4710

Operating Systems: Microsoft Windows Server 2003/2008/2012 , Windows XP/Vista/7/8, Linux

Other Technologies: VISIO, VMware, Mat Lab, GNS3, Microsoft Word, Excel, SQL

PROFESSIONAL EXPERIENCE

Confidential, Columbus, OH

Senior Network Engineer

Responsibilities:

• Working on Cisco 6509 and 4507 series switches for LAN requirements that include managing VLANs, Port Security and troubleshooting LAN issues.
• Configuring and installation of Cisco 2500, 3640, 7200, and 7940 Routers.
• Configured IPX/SPX, HDLC, PPP, TCP/IP, BGP, EIGRP, RIP, & HSRP.
• Configured TCP/IP addressing scheme to assigned IP blocks.
• Coordinated with LAN/WAN engineers the development and implements security policy.
• Part of a team working in L2/L3 Switching Technology Administration including creating and managing VLANs, Port security, Trucking, STP, Inter-VLAN routing, LAN security.
• Deploying Layer 2 security in Server Farms by configuring switch for 802.1x port based authentication.
• Prepared documentation for various VLANS and Voice sub networks and worked on Visio for the same.
• Performed switching technology administration including VLANs, inter-VLAN routing, Trucking, STP, RSTP, port aggregation & link negotiation.
• Performing network monitoring, providing analysis using various tools like Wireshark, Solar winds etc.
• Ensure Network, system and data availability and integrity through preventive maintenance and upgrade.
• Supporting EIGRP and BGP based PwC network by resolving level 2 &3 problems of internal teams & external customers of all locations.
• Coordinated with a team to remove EIGRP from all devices and making OSPF the primary routing protocol.
• Involved in the modification and removal (wherever necessary) of BGP from the MPLS routers.
• Installed and configured DNS and DHCP server.
• Troubleshooter DHCP and other IP conflict problems.
• Defined policies, NAT and anti-spoofing for internal, external networks as well as Internet gateways.
• Configuring remote users to access corporate LAN with VPN connectivity.
• Configured and installed new IP addresses for new users by using IP Addressing and Subnetting Scheme.
• Interfaced with various vendors for company products.
• Configured Frame-Relay, ISDN, ATM, Protocols, & load balancing switches.
• Configuring Virtual Device Context in Nexus 7010.
• Worked on Network support, implementation related internal projects for establishing connectivity between the various field offices and data centers.
• Implementation and configuration of F5 BIG-IP LTM-6400 load balancers.
• Involved in the redistribution into OSPF on the core ASA firewall.
• Responsible for Cisco ASA 5500 firewall administration, Rule Analysis, Rule Modification.
• Cisco ASA/Checkpoint Firewall troubleshooting and policy change requests for new IP segments that either come on line or that may have been altered during various planned network changes on the network.
• Installation and administration of Checkpoint R 75.40 Firewall

Environment: Cisco routers(7900,3600,2500), Cisco switches(4500,6500),Cisco ASA Firewall(5510), Routing protocols(EIGRP, RIP, BGP), Switching protocols(VTP,STP).

Confidential, Brea, CA

Network 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.
• Configured Nexus 7010 including NX-OS Virtual Port Channels, Nexus port profiles, Nexus Version 4.2 and 5.0, Nexus VPC peer links.
• Participated in the installation, configuration, and post installation daily operational tasks and configuration of the deployment of Cisco Nexus equipment.
• Designed 10 gigabit networks using Cisco Nexus 7000 series switches, and Cisco 3800 series routers.
• Managed rules on Cisco checkpoint NGX firewall.
• Worked with Juno OS and Juniper M&T series switches.
• Worked with Cisco ACE GSS 4400 Series global site selector Appliances.
• Networks using routing protocols such as RIP, OSPF, BGP and manipulated routing updates using route-map, distribute list and administrative distance.
• Also worked with the Riverbeds Appliances.
• 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).
• Worked with Host Master for shared web hosting.
• Experience in working with Network automation tools and testing for network change and configuration management.
• Worked with basic SQL quires in working with Database team in solving some of their network connection issues.
• Provided redundancy in a multi homed Border Gateway Protocol (BGP) network by tunings AS-path.
• Experience working with Exchange 2010 SP3 for planning and deployment.
• Experience with Security- Firewalls, NAT / PAT, IPSEC, S2S.
• Worked with Management tools like CSM and Cisco ACS.
• Worked with Cisco IOS, NX-IOS, IOS-XR.
• Worked with MPLS to improve quality of service (QoS) by defining LSPs that can meet specific service level agreements (SLAs) on traffic latency, jitter, packet loss and downtime.
• Worked with Load balancing device like F5 Big-IP local traffic manager (LTM) 1600.
• Experienced in working with BIG-IP Edge Portal and BIG-IP Edge Client.
• Experience with ALG (RTP, RTSP and FTP, DNS, HTTP), DHCP.
• Worked with Windows Power shell and power shell plus.
• Worked with F5 load balancer and Cisco ACE 4710 Load balancers.
• Implemented Hot Standby Router Protocol (HSRP) by tuning parameters like preemption.
• Implemented various OSPF scenarios on networks consisting of 7600 routers.
• 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.
• Negotiate VPN tunnels using IPsec encryption standards and also configured and implemented site-to-site VPN, Remote VPN.
• Tuned BGP internal and external peers with manipulation of attributes such as metric, origin and local preference.
• Worked with Nagios for monitoring of network services (SMTP, POP3, HTTP, NNTP, ICMP, SNMP, FTP, SSH).
• Worked on ASR 7000, 9000 series Cisco aggregation routers.
• Worked on FTP, HTTP, DNS, DHCP servers in windows server-client environment with resource allocation to desired Virtual LANs of network.
• Provided full visibility and notification of authorized and unauthorized network access with integration of CISCO ASA/FWSM and NAC solution.
• Installed, configured and set security policies on cisco and checkpoint firewalls, VPN.
• Analyzed and tested network protocols (Ethernet, TCP/IP) using Wireshark tool.

Environment: Checkpoint, F5 BIG-IP, LTM, GTM, RIP, OSPF, EIGRP, RIP, BGP, LAN, WAN, MPLS, Nexus 2K,5K,7K, PIX 501, Cisco VPN

Confidential, Alpharetta, GA

Network Engineer

Responsibilities:

• Responsible for implementing, supporting, and maintaining 24x7 network services.
• Coordinated efforts with Engineer’s to ensure all network devices conformed to defined network standards.
• Worked with MSC- Microsoft system center manager.
• Configured various Routing protocols such as RIP, OSPF, EIGRP, static routing.
• Provided configuration of STP and Port Security on Catalyst 6500 switches.
• Configure the Cisco CRS-1 Routing System, back out of configuration changes, and restore older versions of a configuration.
• Troubleshooting of Cisco 2800, 2900, 3900, 7200, 7600, ASR9k, CRS Series routers.
• Configure the Cisco IOS XR security features in both owner SDR and non-owner SDRs.
• Worked with Juniper Net Screen 500/5200 and also juniper SRX 650/3600.
• Worked on Fiber channel over Ethernet (FCOE) for connecting 10gigabit Ethernet networks.
• Maintaining Core Switches, creating VLANs and configuring VTP.
• Optimized performance of the WAN network consisting of Cisco 3550/4500/6500 switches by configuring VLANs.
• Experienced working with Tomcat and Apache servers in troubleshooting network issues for our internal server teams.
• Worked with Enterprise Intrusion Detection / IPS (Snort, Source fire, Juniper IDP, IBM ISS).
• Designed on - premise IVRs for integrating with the ACD and CRM systems to ensure maximum efficiency in call handling.
• Performed redistribution with OSPF, EIGRP, RIP version 1 and 2 to enable communication with backbone.
• Executed BPDU Guard, port-fast, uplink fast and other spanning tree features on various layer 2 and layer 3 switches.
• Worked on video from end-point in the network.
• Troubleshooting advanced Riverbed Issues and settings.
• Configured and optimization settings of Riverbed.
• Configured static NAT, dynamic NAT, dynamic NAT overloading.
• In-depth expertise in the implementation, optimization, troubleshooting and documentation of LAN/WAN networking systems.
• Route configuration and point code checks for System Technician and Network Technician.
• Worked with other team members in testing of the network architecture.
• Participated in quality system implementation project.
• Configure wireless routers on enterprise network.

Environment: Cisco 3550/4500/6500 switches and Cisco 2800/2900/3900/7200/7600 routers, Cisco ASA, Checkpoint, WAN, LAN, OSPF, BGP, RIP, EIGRP

Confidential, Arlington - VA

Network 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.
• Implemented various EX, SRX and J series juniper devices.
• 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.
• Worked on F5 BIG-IP LTM 8900, configured profiles, provided and ensured high availability.
• Configures Cisco 1231 Access points with 5959 and 4941 antennas (802.11/a/g).
• 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 HSRP and various OSPF scenarios on networks consisting of 7600 routers.
• 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.
• Extensively worked on Nexus 5k and 7K, configured and troubleshooted.
• Continually monitor, assess and improve network security, test and implement new security technologies.
• 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.
• Deployment of use cases such as SaaS, IaaS, and data center migration.
• Configured BPDU Guard, port-fast, uplink fast and other spanning tree features.
• Worked on FTP, HTTP, DNS, DHCP servers in windows server-client environment with resource allocation to desired Virtual LANs of network.
• Implementing NAT solution's on wan applications
• Responsible for day to day management of Cisco Devices, Traffic management and monitoring.
• Migration from Cisco to Palo Alto firewall.
• Worked on Cisco Routers, Active /Passive Hubs, Switches, Cisco PIX Firewall, Nortel VPN Concentrators TCP/IP, NAT and Checkpoint ESX/GSX firewall.

Environment: Cisco 3750/3550/3500/2960 switches and Cisco 3640/ 0/3845/3600/2800 routers, Cisco ASA5510, Checkpoint, Cisco Nexus7K/5K 60 / 09, VPN, RIP, EIGRPBGP, OSPF, Cisco Wi-Fi router ISP, 800, MSE.

Confidential

Network Engineer

Responsibilities:

• Worked on Cisco 2500, 2600, 2800 series routers and 1900, 2900 series switches
• Replaced outdated Cisco switches and routers in existing Data center and installed new Cisco switches and routers including migration of series router
• Designed the IP addressing scheme using VLSM and configured IP addressing Performed activities such as initial user account creation, established LAN connectivity, file and resource sharing management, internet connectivity, FAX and email service setup
• Expanded LAN to accommodate 200 plus users. Coordinated installation and repair work. Diagnosed and corrected clients network related issues
• Installed and configured LAN/WAN as per organizational / client requirements, governed by communication protocols
• Performed tasks that include Configuring and constant administration of Static routing, Default Routing & dynamic Routing Protocols like RIP, OSPF & EIGRP.
• Implemented dedicated VLAN ID for all trunk ports, set user ports to non-trunking, and deployed port security when possible for user ports for layer 2 security
• Worked to set up the TFTP server for backing up the IOS images and configuration files of Cisco Routers and Switches and troubleshooting the file servers.
• Performed network evaluations, troubleshooting a variety of network problems, and implementing various software and hardware upgrades efficient performance.
• Troubleshoot Cisco hardware: Inspected devices, Read device LEDs, loose connections, cards, dirty devices, interior IOS upgrade, switch configuration usage of Visual Switch Manager, switch port configuration, port monitoring. Watch over Flooding Control/Network port.