SUMMARY:

• Cisco Certified Network engineer with over 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 enables 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.
• Advanced knowledge in design, installation and configuration of Juniper Netscreen Firewall ISG 1000/2000, SSG series and NSM Administration
• Worked on Cisco Catalyst Switches 6500/4500/3500 series,
• Expert in Cisco IOS for configuration & troubleshooting of routing protocols: MP-BGP, OSPF, EIGRP, RIP, BGP v4, MPLS.
• Experienced in DHCP,DNS, SMTP,FTP, HTTPS and web security architecture.
• Juniper, Check Point Cisco ASA, Cisco PIX and Palo Alto Firewalls 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.
• Strong knowledge of TACACS+, RADIUS implementation in Access Control Network.
• 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.
• Experience in configuring Cisco Catalyst 2960, 3750, 4500, 6500 and Cisco 2600, 2800, 3600, 3800, 7200, 7600 series routers, Load Balancers& Cisco Firewalls.
• 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.)
• Troubleshoot firewall configurations remotely supporting all managed firewall solutions.
• 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.
• Understand different types of NAT on Cisco ASA firewalls and apply them.
• Used BIG-IP Application Security Manager (ASM) for scanning the threats and inspecting the HTTPS.
• 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.

TECHNICAL SKILLS:

Cisco Platforms: Nexus 7K, 5K, 2K & 1K, Cisco routers (7600, 7200, 3900, 36002800, 2600, 2500, 1800 series) & Cisco Catalyst switches (6500, 4900, 3750, 3500, 4500, 2900 series)

Juniper Platforms: SRX, MX, EX Series Routers and Switches Networking ConceptsAccess Lists, Routing, Switching, Subnetting, Designing, CSU/DSU, IPsec, VLAN, VPN, WEP, WAP, MPLS, and VoIP, Bluetooth, Wi -Fi

Firewall: ASA Firewall (5505/5510), Checkpoint, Cisco ASANetwork ToolsSolar Winds, SNMP, Cisco Works, Wireshark

Load Balancers: Cisco CSM, F5 Networks (Big-IP)

WAN Technologies: Frame Relay, ISDN, ATM, MPLS, leased lines & exposure to PPP, DS1DS3, OC3, T1 /T3 & SONET

LAN technologies: Ethernet, Fast Ethernet, Gigabit Ethernet, & 10 Gigabit Ethernet, Port-Channel, VLANS, VTP, STP, RSTP, 802.1Q

Security Protocols: IKE, IPSEC, SSL-VPN

Networking Protocols: RIP, OSPF, EIGRP, BGP, STP, RSTP, VLANs, VTP, PAGP, LACP, MPLSHSRP, VRRP, GLBP, TACACS+, Radius, AAA

Languages: Perl, C, C++, SQL, HTML/DHTML

Operating System: Windows 7/XP, MAC OS X, Windows Server 2008/2003, Linux, UNIX

Documentation: MS Office, MS Visio

PROFESSIONAL EXPERIENCE:

Confidential, NYC, NY

Sr. Network Engineer

Responsibilities:

• Prepare equipment orders based on templates. Develop detailed template-based plans including: implementation, testing and back out procedures for allnetwork implementations, upgrades and modifications.
• Day to day activities involves the provisioning of the firewall policies, managing and administering the Juniper SRX and Checkpoint Firewalls at various zones globally.
• Configuring and managing Cisco ASA Firewalls (5585, 5550, and 5540) and use command line CLI, Cisco CSM, ASDM for day-to-day administration.
• Configured IPSec site-to-site VPN connection between Cisco VPN 3000 Concentrator and Cisco 3800
• Configuring IP, RIP, EIGRP, OSPF and BGP in routers.
• Working with High performance data centre switch like nexus 7000 series
• Hands on experince with Nexus 7010,7018, 5020, 2148, 2248 devices
• Migration of existing IPSEC VPN tunnels and Firewall rules from one Data Centre to another Data Centre, due to decom of existing Data Centre, which involved working with Partner Companies
• Responsible for Updating Access-list, prefix-list to 2500 Retail Routers across the country. Experience with LAN protocols like STP, RSTP, MST, VTP, VLAN and Port Channel Protocols like LACP, PAGP.
• Network Redesign for Company Campus Locations and Moving from 6500 based Data Centre to Nexus based Data Centre.
• Worked extensively in Configuring, Monitoring and Troubleshooting Cisco's ASA 5500 with ACL, NAT, Object Groups, Failover, Multi-Contexts.
• Responsible for layer 2 securities which was implemented using a dedicated VLAN ID for all trunk ports, setting the user ports to non-trucking, deployed port security when possible for user ports
• Enabled STP attack mitigation (BPDU Guard, Root Guard), using MD5 authentication for VTP, disabling all unused ports and putting them in unused VLAN.
• Implemented Site-to-Site VPNs over the internet utilizing 3DES, AES/AES-256 with ASA Firewalls.
• Responsible for cabling the switches, assigning IPs, port turn up and also troubleshooting the connection.
• Worked on migration from F5 LTM to A10 LTM
• Worked on F5 LTM, GTM series like 6400, 6800, 8800 for the corporate applications and their availability
• Provide front end on-call network support 24x7x365 for all network infrastructures in the co-operation

Environment: Cisco routers (7200, 3800, 2800) and Cisco switches (6500, 3700, 4900, 2900), Nexus (7K, 5K & 2K) Routing Protocols (EIGRP, OSPF, BGP), Checkpoint, F5 load balancing

Confidential, Mclean, VA

Network Engineer

Responsibilities:

• 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).
• Actively managed IP Communications, audio/video conferencing, mobility, and presence.
• Responsible for the analysis/troubleshooting of large-scale enterprise VoIP networks.
• Configuring RIP, OSPF and Static routing on JuniperM and MX series Routers
• Configuring VLAN, Spanning tree, VSTP, SNMP on EX series switches
• Design, and configuring of OSPF, BGP on Juniper Routers and SRX Firewalls.
• Worked on HSRP for load balancing.
• Designing data communications and networks utilizing that utilize a mixture of frame relay, point to point T1, T3 & OC3 lines
• Worked on F5 LTM, GTM series like 6400, 6800, 8800 for the corporate applications and their availability
• Involved in iRule management like loading rules, writing iRule syntax using TCL language
• Involved in design and implementation of Data Centre Migration, worked on implementation strategies for the expansion of the MPLS VPN networks
• Experience converting Cat OS to Cisco IOS on the Cisco 6500 switches
• Designed MPLS VPN and QoS for the architecture using Cisco multi-layer switches
• Cisco IOS experience on 3600/7200 class hardware in complex WAN environment and experience on Cisco OS and IOS on CAT6500 in a complex data centre environment
• Hands on experience installing Sup720 for Cisco 6509-E series and its Gigabit Ethernet port deployment in the core network
• Configuring IP, RIP, EIGRP, OSPF and BGP in routers.
• Experience in deploying EIGRP/BGP redistribution and the changing the metrics for the primary and backup paths for the packet prioritization and EIGRP tuning
• Experience on a mesh 6500 and 5500 series routes and switches to support the core trading system. Involved
• Hands on Experience testing iRules using Browser(IE), HTTP watch
• Involved in SNMP Network management. Worked on various scanning and Sniffing tools like Ethereal
• Upgrades and backups of Cisco router configuration files to a TFTP server
• Implementing and maintaining backup schedules as per the company policy
• Experience working with Nexus 7010,7018, 5020, 2148, 2248 devices
• Manage Cisco Routers and troubleshoot layer1, layer2 and layer3 technologies for customer escalations
• Configuring IPSEC VPN on SRX series firewalls
• Provided redundancy in a multi homed Border Gateway Protocol (BGP) network by tunings AS-path.
• Worked on Juniper J series j230, M 320 routers and EX 3200 series switch.
• Created engineering configuration, Security Standards, documenting processes and Network documentation using Microsoft Visio
• Troubleshooting and installing of CRS, ISR, GSR, ASR9000 and Nexus devices.
• Installation, Configuration and Administration of ADS, DNS, DHCP and Web proxy (ISA)server
• Upgrade Cisco Routers, Switches and Firewall (PIX) IOS using TFTP
• Implemented the concept of Route Redistribution between different routing protocols
• Switching related tasks included implementing VLANS, VTP, STP and configuring on Fast Ethernet
• Administration of Cisco 11.x and 12.1 versions and higher
• Monitored all Cisco equipment’s using Cisco Works
• This includes Artifacts for regular Health Checks, IP and System Integrity, Change management, Problem management, Logical Access Controls, Network Connectivity, Service Registration and Performance Management
• Installed and configured the Cisco routers 2800 in two different customer locations. It includes coordinating with Verizon and AT&T in order to bring the serial interface up for T3 link. Also, configuration includes frame relay, BGP and VPN tunnel on GRE
• VLAN Configurations, troubleshooting and Firewall ACLs and Object-Groups configuration and support
• Configured IPSec site-to-site VPN connection between Cisco VPN 3000 Concentrator and Cisco 3800

Environment: Juniper firewalls 5GT, 208, SSG 5, 140, 550, 550M, NSM, IDS/IPS 6500/3750/3550/3500/2950 switches, Juniper (M320, T640), Load balancing, Cisco 7200/3845/3600/2800 routers, TACACS, EIGRP, RIP, OSPF, BGP, VPN, MPLS, Ether Channels.

Confidential, Providence, RI

Network Engineer

Responsibilities:

• Installation and Configuration of Cisco Catalyst switches 6500, 3750 & 3550 series and configured routing protocol OSPF, EIGRP, BGP with Access Control lists implemented as per Network Design Document and followed the change process as per IT policy It also includes the configuration of port channel between core switches and server distribution switches
• Router/ Microsoft VPN Server in order to access certain limited network resources from customer locations
• Involved in the redistribution into OSPF on the core ASA firewall.
• Experience on HSRP for load balancing.
• Involved in the removal of 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.
• Involved in designing L2VPN services and VPN-IPSEC authentication & encryption system.
• Tuned BGP internal and external peers with manipulation of attributes such as metric, origin and local P.
• Responsible for turning up BGP peering and customer sessions, as well as debugging BGP routing problems.
• Designing and Implementation of (LAN) VLANs, VTP, Spanning Tree (STP), Trunking (dot1q and ISL) and Ether channel.
• Installed and configured four PIX 525 and two ASA 5505 in customer locations. In addition to that, two PIX firewall configured for the Guest access
• Key contributions include troubleshooting of complex LAN/WAN infrastructure that include routing protocols EIGRP, OSPF & BGP
• Configuring, Installing and troubleshooting on Check Point Devices.
• Good knowledge on Intrusion Detection and Intrusion Prevention System.
• Knowledge on multiplex techniques such as DWDM.
• Troubleshoot and Worked with Security issues related to Cisco ASA/PIX, Checkpoint, IDS/IPS and Juniper Netscreen firewalls.
• Experience with Synchronous Optical Networking (SONET) over optical fibre.
• Involved in Configuring and implementing of Composite Network models consists of Cisco7600, 7200, 3800 series and ASR 9k, GSR 12K routers and Cisco 2950, 3500, 5000, 6500 Series switches.
• 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.
• Implemented Hot Standby Router Protocol (HSRP) by tuning parameters like pre-emption.
• 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.
• Managing health check of Network devices this is involves upgrading IOS on every quarter after checking the vulnerability of IOS and reviewing the configuration
• Experience in HSRP standby troubleshooting & Experience in configuring & upgrading of Cisco IOS
• Installation, Configuration and troubleshooting Cisco switches and Firewall on multi-mode context based environments
• 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.

Environment: CISCO routers and switches, Access Control Server, VLAN, Trunk Protocols, CISCO ASA, DHCP, DNS, Spanning tree, Nimsoft.

Confidential

Network Engineer

Responsibilities:

• Configured Cisco Routers for OSPF, IGRP, RIPv2, EIGRP, Static and default route.
• Worked on HSRP for hop redundancy and load balancing.
• Configured the Cisco router as IP Firewall and for NATing Configured RSTP, MST and used VTP with 802.1q trunk encapsulation.
• Provided port binding, port security and router redundancy through HSRP.
• 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.
• Responsible for Internal and external accounts and, managing LAN/WAN and checking for Security
• Settings of the networking devices (Cisco Router, switches) co-coordinating with the system/Network administrator during any major changes and implementation
• Routing protocols OSPF, RIP & BGP
• Implementation of name resolution using WINS & DNS in TCP/IP environment
• Configured FTP server for inside/outside users & vendors

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

Confidential

System/Network Engineer

Responsibilities:

• Worked on Cisco routers 7200, 3800, 2800 and Cisco switches 4900, 2900
• Key contributions include troubleshooting of complex LAN/WAN infrastructure that include
• Configured Firewall logging, DMZs & related security policies & monitoring
• Creating Private VLANs & preventing VLAN hopping attacks & mitigating spoofing with snooping & IP source guard
• Installed and configured Cisco PIX 535 series firewall and configured remote access IPSEC VPN on Cisco PIX Firewall
• Enabled STP Enhancements to speed up the network convergence that include Port-fast, Uplink-fast and Backbone-fast
• Configured network access servers and routers for AAA Security (RADIUS/ TACACS+)
• Other responsibilities included documentation and change control
• Responsible for Configuring SITE TO SITE VPN on Cisco Routers between Head Quarters and Branch locations
• Implemented the security architecture for highly complex transport and application architectures addressing well known vulnerabilities and using access control lists that would serve as their primary security on their core & failover firewalls
• Installation & configuration of Cisco VPN concentrator 3060 for VPN tunnel with Cisco VPN hardware & software client and PIX firewall
• Involved in troubleshooting of DNS, DHCP and other IP conflict problems
• Used various scanning and sniffing tools like Wire-shark
• Hands on Experience working with security issue like applying ACL’s, configuring NAT and VPN
• Documenting and Log analysing the Cisco ASA 5500 series firewall
• Configured BGP for CE to PE route advertisement inside the lab environment
• Spearheaded meetings & discussions with team members regarding network optimization and regarding BGP issues

Environment: Netrep, Solar winds, Windows server NT /2000 Windows XP.