SUMMARY:

• Eight years of experience as Network Engineer in area such as routing, switching, firewall technologies, installation and analysis for a broad range of LAN / WAN communication systems.
• Involved in troubleshooting of DNS, DHCP and other IP conflict problems.
• Hands on experience in installing, configuring, and troubleshooting of Cisco and Juniper routers and switches (Nexus).
• Configured Juniper MX, EX and SRX series routers from scratch to match design and also maintained them on an enterprise level.
• Serve as Subject Matter Expert on global operations projects and architect network security solutions for customers utilizing a variety of cutting edge technologies (firewall solutions, IDS, and IPS).
• Experience in building the Firewalls using Juniper SRX routers.
• Experience with Solar Winds, Cisco Works, SNMP, Nagios, Splunk, Wireshark Analysis and Monitoring.
• Experience implementing Cisco UCS servers following Cisco best practices for unified communications on UCS.
• Experience supporting, upgrading, and trouble - shooting Cisco Unified Communications Manager infrastructure
• Proficient in resolving Connectivity and Troubleshooting issues and hardware problems on Cisco networks of configuring and troubleshooting of Layer 3 Routing protocols RIP, EIGRP, OSPF, ISIS and BGP and layer 2 protocols, VTP, STP and RSTP.
• Was part of the team that set up Lync 2010/2013 servers.
• Experienced in configuring wireless networks.
• Knowledge of implementing and troubleshooting complex layer 2 technologies such as VLAN Trunks, VTP, STP and RSTP. Implementation of HSRP, VRRP for Default Gateway Redundancy.
• Having knowledge and hands-on experience on IP Addressing, Sub netting, VLSM and ARP, reverse &proxy ARP, Ping Concepts.
• Strong work experience on MPLS, QoS, VPN, and WLAN technologies.
• Practical experience in Tier II ISP Routing Policies, Network Architecture, IP Subnetting, VLSM, TCP/IP, NAT, DHCP, DNS, Firewalls.
• Designing and developing cost effective network solutions for enterprise customers based on the business requirements.
• Experience in Designing and assisting in deploying enterprise wide Network Security and High Availability Solutions for ASA.
• Have configured firewalls using Palo Alto and also have distinguished knowledge of using Panorama for contacting all firewalls.
• Extensive knowledge on design using MS Visio based on client needs.
• Ability to Install, Operate, & Manage Large Networks & Security for the Co-located Servers, Production, Development, Staging & Lab Environments.
• Troubleshooting connectivity issues and application problems.
• Adept in preparing Technical Documentation and presentations using Microsoft Office.
• Experience in using Microsoft Project in estimating the time for the project completion and estimating everyday schedule of every team member.
• Experience in installing and configuring DHCP server.
• Troubleshooting server workstations, network monitoring, and upgrading systems.
• Experience in configuring Site-to-site and remote access VPN solutions.
• Experience testing Cisco routers and switches in laboratory scenarios and deploy on site for production.
• Excellent customer management/resolution, problem solving, debugging skills and capable of quick learning, implement and delivering solutions as an individual and as part of a team.

TECHNICAL SKILLS:

Network Configuration:  Advanced switch/router configuration (Cisco IOS access list, Route Redistribution/propagation)

Routing Protocols:  RIPv1, RIPv2, EIGRP, OSPF, BGP, IBGP, EBGP

Switching Protocols: VTP, 802.1Q, Spanning Tree Protocol, RSTP, VLANs

LAN Technologies: Ethernet, Fast Ethernet, Gigabit Ethernet, Wireless (802.11 a/b/g/n)

WAN Technologies: OC-192, OC-48, FRAME RELAY, PPP, T1/E1, HDLC, MPLS, DS3, Leased Lines, DSL Modems, ISDN (PRI/BRI), Fiber technology, Copper Cabling Technology

Security Technologies: ACL, IPSec, DMVPN, SSL, NAT, PAT, Palo Alto

Cisco Routers: 1800, 2600, 2800, 3600, 3700, 3800, 3900, 6500, 7200

Switches: 2900XL, 2950, 2960, 3500, 3550, 3560, 3750, 4500, 6500, Nexus 4k, Nexus 5k, Nexus 2k, Nexus 1k, Nexus 7k

Juniper Routers: MX480s, EX8200s, EX4500s, EX4200s, SRX110, SRX3400, SRX3600, SRX 5400/5600

Miscellaneous: DHCP, DNS, TFTP, FTP, SMTP, TCP/IP, ARP

Tools: Wireshark, GNS3, SolarWinds, Nagios, GNS3, OpNet, VMWare

Operating Systems: Microsoft XP/Vista/7/8, Linux, Windows Servers 2003/2008, and OS X, Lync 2010/2013

Languages: Python, Java, C++, C

PROFESSIONAL EXPERIENCE:

Network Engineer

Confidential, Middletown, NJ

• Configured Router RIP, OSPF, BGP routing.
• Reverse proxy implementations (Cisco, Bluecoat, F5, Juniper and Redline).
• Monitoring and advanced filtering of malicious HTTP requests using reverse proxy caches and application level firewalls.
• Worked with Cisco unified IP phones and experience in working with UACs (Unified Attendant consoles) to handle calls efficiently.
• Was responsible for configuring SIP for video conferencing and other multimedia sessions.
• Was responsible for migrating the router from Juniper to Cisco
• Upgrading and Backing up Router IOS
• Register, Add or Delete the IP addresses to the IP Plan.
• Worked extensively on MPLS, HSRP and VRRP environment.
• Negotiate VPN tunnels using IPSec encryption standards and also configured and implemented site-to-site VPN, Remote VPN.
• Performing network monitoring, providing analysis using various tools like Wireshark, Solar winds etc.
• Involved in maintaining Nagios by adding and removing devices for monitoring, and reporting the health of the Nagios process.
• Packet capturing, troubleshooting on network problems with Wireshark, identifying and fixing problems
• Excellent troubleshooting knowledge on T1, T3, OC-3 and OC-12.
• System testing with PPP, L2TP, STP, and ACLs enabled.
• Installed and configured Cisco’s ASA firewall versions 8.4 and updated it to 9.0.
• Supporting, upgrading, and trouble-shooting Cisco Unified Communications Manager infrastructure.
• Involved in Installing and Configuring a Cisco secure ACS server for AAA authentication (RADIUS and TACACS+).
• Performed OSPF, BGP, DHCP, and Ethernet implementation.
• Worked extensively on network testing and troubleshooting.
• Adding the extra blades to Distribution Switches.
• Configuring and troubleshooting type of routing to route traffic flow per customer requirement as primary, backup/load balanced, and load splitting.
• Designing network plan of routing policies with route maps, distribution lists, and access-list.
• Used DHCP to automatically assign reusable IP addresses to DHCP clients.
• Worked with Palo Alto PAN-200s and 500s.
• Implemented the Cisco Secure Access Control Servers (ACS) to offer centralized command and control for all user authentication, authorization and accounting (AAA).
• Performed Switching Technology Administration including creating and managing VLANS’s, Port security, Trunking, RSTP, Inter VLAN routing, LAN security etc.
• Worked on Inconsistent VLAN issues and removed the VLAN across the trunks and implemented Rapid Spanning tree from STP.
• Worked with Lync 2013 server.
• Duties also included repair and testing of electronic systems; identify and repair any defective component or wiring, and document testing and repair activities with test data sheets and production reports.
• Configure and maintain security policies on Fortinet firewall.
• Assisted in Managing multiple NEBS pre-test projects staging, testing, generating test report to uploaded to Cisco internal engineering database, allowing for 24/7 access.
• Worked with some Juniper routers to switched and helped in migration into Cisco equipment. Responsible for configuring OSPF and BGP on Juniper routers including some firewall configurations.
• Helped in the migration of Juniper to Cisco routers.

Environment: Juniper and Cisco Routers, Cisco Switches, Routing Protocols, LAN, WAN, TCP/IP, Tunneling, Firewall, VPN, MPLS, Wireshark, VLAN, VTP, RSTP, ACL, Monitoring Tools (Solar winds).

Network Engineer

Confidential,Herndon,VA

• Network Engineer Design, implementation and operational support of routing/switching protocols in complex environments including OSPF, EIGRP, Spanning Tree, 802.1q etc.
• Managed fast Layer 3 switched/routed LAN/WAN infrastructure as a part of Network team. The LAN consisted of Cisco campus model of Cisco 3550 at access layer, Cisco 6513 at distribution/core layer. Switches Replace branch hardware with new 2851 routers and 2960 switches.
• Worked with juniper EX series routers for configuring BGP as part of the border network team.
• Configure and maintain security policies on Fortinet firewall and manage Forti-Manager/ Forti-Analyzer.
• 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.
• Lead design engineer for F5 network load balancers . Installation and implementation of both F5 and Citrix load balancers.
• Worked Extensively on Cisco Firewalls, Cisco PIX (506E/515E/525/) & ASA 5500(5510/5540) Series.
• Experience working on different monitoring tools such as Wireshark, SolarWinds to analyze and resolve the issues.
• Excellent Troubleshooting Skills and Customer Centric approach.
• Configuring and troubleshooting of Layer 3 routing protocols such as EIGRP, OSPF and BGP.
• Coordinated with Network Administrator regarding BGP/OSPF/EIGRP routing policies and designs, worked on implementation strategies for the expansion of the MPLS VPN networks.
• Designed QOS policies for critical applications based on business requirements and traffic patterns.
• Worked with Wireless Network Engineer in deploying and configuring Cisco 1100 Series access point for network connections.
• Work on firewall policy for the network configured on Checkpoint Firewall.
• I configured and deployed Cisco Unified Communications manager express for conference call and efficient call control.
• Configure Edge and Ring Fortinet firewalls with redundant links
• I also provide support for testing, system integration, installation scripts and other related duties to support the program.
• Worked with system, network, security, and storage engineering teams to prepare and configure new servers for the environment.
• Helped in implementing GR-1089-Core, and GR-63-Core standards for NEBS Level 1 & 2 lightning surge tests, AC power/over voltage tests. Improved passing rate for formal NEBS testing by 50%.
• Analyzed and diagnosed a significant customer problem and created solutions by running tests in parallel that met aggressive deadline, and delivered higher value testing ahead of schedule.
• Was part of the team which deployed Enterprise Edition pool (EE servers) for Lync 2013.
• Troubleshoot network issues related to application access and performance.
• Responsible for troubleshooting day-to-day support issues and Performance related issues.

Environment: Cisco 6509/3750/3550/3500/2950 Nexus 2000, 6500 switches, Cisco 7200/3845/3600/2800 routers, TACACS, EIGRP, RIP, OSPF, BGP, VPN, MPLS, and Ether Channels.

Network Engineer

Confidential,Columbia,MD

Responsibilities:

• Configuring and troubleshooting inter VLAN routing with 802.1Q trunking and L3 switches, VTP, Spanning tree.
• Configuring, Implementing and Troubleshooting (MHSRP) on Cisco Nexus 7000 Series devices
• Configuring, maintaining and troubleshooting Cisco layer 3/ layer 2 switches.
• Configuring IP RIPv2, OSPF and BGP in routers. Routing related tasks includes, providing Cisco router configuration
• Designing rules (ACL, security policies) to ensure better security.
• Hands on experience in configuring QoS on Cisco Routers/Switches.
• Monitoring and maintaining LAN/WAN networks using Snort and sniffer trace.
• Configuring VLAN and enabling IP routing in order to allow restricted connections from some resources.
• Integrate VoIP with PSTN and setup voice Gateway ensuring QOS for Cisco based Voice over IP and CDR for voice call Accounting.
• Was also responsible for configuring SIP.
• Installing and configuring Checkpoint and ASA firewalls, VPN networks and redesigning customer security architectures.
• Design and Implement Remote access VPN server using Cisco ASA.
• Creating a rule on the checkpoint firewall for a NAT (used ACLs to block unauthorized users) to the VLAN IP and allowing the IPSec traffic.
• Analyzed current network by understanding limitations of access points and monitoring TX-RX rate using NAGIOS system.
• Recommend designs to ensure consistency within networks.
• Experience with F5 load balancing.
• Day-to-day activities involved maintenance, upgrading, and troubleshooting of Ethernet, Fast Ethernet, and Gigabit Ethernet LANs.
• Testing the whole hardware equipment according to NEBS standards.
• Design tests and implement interface programs for maintenance and administrative duties performed in 24-hour 7 days a week environment while developing security procedures. Manage network performance, exchange mail servers, and perform related duties to mail service users.
• Used DHCP to automatically assign reusable IP addresses to DHCP clients.
• Created extensive architecture and design documents such as (site network diagrams, logical LAN/WAN diagram, network device list (servers/routers/switches), server information sheets) that will be used in the handoff from engineering to operations.

Environment: Cisco Routers, Cisco Switches, Routing protocols, HSRP, VRRP, IPSEC VPN, VPN, QOS, ASA firewall, Load balancer, VLANS, VTP, RSTP, ACL, NAT, IDS/IPS, RADIUS, TACACS+

Network Engineer

Confidential

Responsibilities:

• Installed and configured routers along with Cisco switches including 3750 and 6500.
• Performed configuration and troubleshooting of EIGRP and BGP.
• Dealt with upgrading the Cisco hardware and migration of the router and switches.
• Designed new enterprise MPLS VPNs, as needed for policy and security reasons.
• Worked with Network Administrator in the installation and configuration of ASA firewall.
• Implemented Site-to-Site IPSec VPN connecting to branch offices and the corporate office.
• Configured Remote access IPSec VPN for remote users to communicate with the corporate office.
• Installed and configured DHCP server.
• Involved in troubleshooting of DHCP and other IP conflict problems.
• Designed QoS policies for critical applications based on business requirements and traffic patterns.
• Performed switching technology administration including VLANs, inter-VLAN routing, Trunking, STP, RSTP, port aggregation & link negotiation.
• Analyzing and testing network protocols (Ethernet, TCP/IP) using Wireshark, Nagios and SolarWinds.
• Participated in on call support in troubleshooting the configuration and installation issues.
• Other responsibilities included Support other teams, change control.
• Define deployment standards and configuration baseline to replace Nokia IP series firewalls with CheckPoint appliance firewalls and FortiNet ultra-low latency firewalls.

Environment: Cisco Routers, Cisco Switches, Routing protocols (EIGRP, BGP), MPLS VPN, HSRP, GLBP, PBX, IP Telephony, ASA firewall, IPSEC VPN Tunnel, Load Balancer CSS, QoS, ACL, VLANs, VTP, STP, RSTP, DNS, DHCP

Network Engineer

Confidential

Responsibilities:

• Implementing new/changing existing data networks for various projects as per the requirement.
• Troubleshooting complex networks layer 1, 2to layer 3 (routing with MPLS, BGP, EIGRP, OSPF protocols) technical issues using Juniper routers.
• Providing support to networks containing more than 2000 Cisco devices and also helped in migration from juniper to Cisco devices.
• Worked with Juniper EX and SRX routers.
• Helped in building the firewall with juniper SRX routers such as SRX 3400/3600.
• Performing troubleshooting for IOS related bugs by analyzing past history and related notes.
• Carrying out documentation for tracking network issue symptoms and large scale technical escalations.
• Ensure Network, system and data availability and integrity through preventive maintenance and upgrade.
• Involved in L2/L3 Switching Technology Administration including creating and managing VLANs, Port security, Trucking, STP, Inter-Vlad routing, LAN security.
• Worked on the security levels with RADIUS, TACACS+.
• Completed service requests (i.e. - IP readdressing, bandwidth upgrades, IOS/platform upgrades, etc.)
• Managing the service request tickets within the phases of troubleshooting, maintenance, upgrades, fixes, patches and providing all-round technical support.
• Commissioning and Decommissioning of the MPLS circuits for various field offices.
• Preparing feasibility report for various upgrades and installations
• Identify, design and implement flexible, responsive, and secure technology services
• Modified internal infrastructure by adding switches to support server farms and added servers to existing DMZ environments to support new and existing application platforms.
• Configured switches with port security and 802.1 as for enhancing customer’s security.
• Monitored network for optimum traffic distribution and load balancing using Solar winds and Wireshark.
• Configuring servers, router and switches to send SNMP traps to Network Management System (Nagios).
• Validate existing infrastructure and recommend new network designs.
• Created scripts to monitor CPU/Memory on various low end routers in the network.
• Installed and maintained local printer as well as network printers.
• Handled installation of Windows NT Server and Windows NT Workstations.
• Handled Tech Support as it relates to LAN & WAN systems
• Configuring and troubleshooting multi-customer network environment.
• Involved in network monitoring, alarm notification and acknowledgement.
• Subnetting networks, troubleshooting DHCP and DNS Servers.

Environment: Juniper Routers, Juniper Switches, Routing Protocols, TACACS, EIGRP, RIP, OSPF, BGP, VPN, MPLS, and Ether Channels