• Perform routine and emergency maintenance of all network related equipment, primarily routers, firewalls, LAN switches, CSU/DSU's, etc.
• Monitor, measure and report network availability, reliability and response time service levels.
• Provide network capacity planning and testing for the LAN/WAN environments.
• Design, install and troubleshoot IP based LANs/WANs and IP- based routing solutions. Implemented network with OSPF, BGP, EIGRP and RIP.
• Initialize familiarization with the management of Palo Alto Next Generation Firewalls as well as F5 load balancers.
• Administered security and NAT policies, fulfilling project requirements on Palo Alto 3050 & 5050 next-generation firewalls using PAN-OS 6.1. Set up VLANs and access ports connecting virtual machines using the NX-OS CLI on a Cisco Nexus 1000v virtual machine and VMWare vSphere Client networking.
• Design, install and troubleshoot security systems, including firewall (NAT, port filtering/forwarding, web proxy), content management (DNS and IP based solutions), VPN (site to site, remote access) and IDS.
• Develop and recommend strategies for network growth, security, and enhancements by maximizing functionality of network equipment such as routers, switches, firewalls, etc.
• Interface with vendors and suppliers to ensure adequate delivery and maintenance of equipment and services.
• Working extensively with Nexus 7000, 5000, 2000, Cisco 6500 series multilayer switches, Cisco 2960s series switches and Cisco 3560/3750s switches
• Initialize familiarization with the management of Palo Alto Next Generation Firewalls as well as F5 load balancers. Switches Nexus 2K/5K/7K, 9K. Cisco Catalyst 2900, 3500, 3700, 6500, 4500, 3850, 3560, 3750, 2960, Meraki MS-350
• Responsible for Cisco ASA firewall administration across our global networks.
• Maintain library of associated materials for all equipment, processes, and procedures, including network diagrams, device configurations, network topology information, etc.
• Introduced Network Redundancy in the whole Carey Network to completely remove Single Point of Failures to coincide with Mission Critical Application Centralization
• Actively involved in switching technology Administration including creating and managing VLANS, Port security - 802.1x, Trunking 802.1Q, RPVST+, Inter-VLAN routing, and LAN security on Cisco Catalyst Switches 4507R+E, 6509-E and Cisco Nexus Switches 2232, 5596, 7009.
• Migrated Frame-Relay WAN to MPLS IPFR network and designed and implemented QoS to provide efficiency for centralized applications, migrated routing protocol from EIGRP to BGP
• Implemented various management and monitoring tools like NetFlow Analyzer, Cisco Works to monitor network traffic and took appropriate steps for better usage of resources
• Supported clients with establishing high availability applications with load distribution by F5 Big- IP LTM/GTM.
• Experience with Checkpoint Firewall policy provisioning and modification of Palo Alto PA-500, PA-2k, PA-3k, and PA-5 k.
• Upgraded the software images of all Cisco network devices to include routers, switches and ASA firewalls.
• Provided fault isolation and rootcause analysis for threat related issues.
• Working on migrating AIX to RedHat Linux 6 and 7.
• Administer OpenStack networking environment and supporting hardware switches and firewalls.
• Extensive experience in configuring Layers routing and layer2/3 switching of Cisco based nexus 7K, 5K, 2K& 800lSR series Switches & routers.
• Configure Juniper SSL VPN and Cisco IPSEC
• Implemented Cisco Content Services Switch for providing High Availability to all business applications
• Designed and implemented an automated VPN failover for remote sites
• Configured load balancing on F5 and Cisco ACE load balancers to allow traffic going to the Bluecoat proxies to be optimized and load balanced.
• Administered security and NAT policies, fulfilling project requirements on Palo Alto 3050 & 5050 next-generation firewalls using PAN-OS 6.1. Set up VLANs and access ports connecting virtual machines using the NX-OS CLI on a Cisco Nexus 1000v virtual machine and VMWare vSphere Client networking.
• Deployed and maintained routing protocols such as OSPF, EIGRP, BGP, GRE, MPLS/VPN, HSRP and static routes on Cisco routers and switches and Juniper routers
• Implemented fail-free VPN for remote access for users and integrated with Cisco ACS and LDAP
• Implemented Wireless WAN backup for all remote sites to account for multiple failures over WAN
• Implemented Cisco IPS/IDS, NAC (Network Access Control), CS-MARS, CSM and CSA
• Managed all network and devices to include Cisco routers, switches, VPNs, SSL, Check Point, Cisco PIX, Cisco ASA, Cisco FWSM as well as content delivery networks (CSS, Citrix Netscaler and F5 BigIP LTM and GTM 1600 and 3400 load balancers) enterprise environment.
• Good experience and knowledge of Cisco Routers, Switches and load balancers- Cisco CRS12K, ASR9K/1K, ISR3925e, 2951, 6880 Series, Nexus9k/7k/5k/2k, VPC/vDC, Cisco 7600 Series, Cisco 6500 Series, cisco 4500 series, 3650, 3750 series, 2960 series and F5, and Juniper MX960.
• Designing, Implementing LAN/WAN configurations on Cisco Nexus 9k, 7k, 5k, Catalyst 6500 switch.
• Implemented Cisco ACE for better application availability and performance improvement
• Currently working on getting the network certified for PCI for data in motion and rest
• Worked on Juniper MX240 and MX480.
• Documented and Analyzed log of Cisco PIX series firewall.

• Manage network security including PIX firewalls, IDS, VPN, and web monitoring.
• Oversee VPN security and ensure that security requirements are met by configuring the Cisco PIX for VPN Remote access and site-to-site VPN tunnels using 3DES and either MD5 or SHA.
• Coordinate with NAVCIRT to resolve security-related incidents.
• Configure, maintain, troubleshoot and provide solutions for load balancing on F5, ACE, and CSM load balancers.
• Configured routes on Palo Alto firewalls 3060, 5060, 7050.
• SolarWinds Network Performance Monitor, Network Configuration Manager, Network Traffic Analyzer (NetFlow) and IP Address Manager.
• Monitor operation and performance of OpenStack clouds to proactively identify maintenance issues.
• Monitoring LAN/WAN network environments including routers, switches, Security Appliances, and software applications.
• Worked on ASA (5540/5550) Firewalls. Implemented Security Policies using ACL, Firewall, IPSEC, SSL, VPN, IPS/IDS, AAA (TACACS+ & RADIUS).
• Deploying of VLANs, port and IP allocations and planning on ASR Mk, Nexus '9k, 7k, 5k, Mk and its downstream devices.
• Configured EIGRP, RIP, OSPF and Static routing on Juniper M and MX series Routers for Lab Environment.
• Ensure that workstations meet DoD Security standards and DITSCAP requirements using the Real Secure ISS scanner and Harris Stat Scanner to run scans based on DoD requirements.
• Configure Cisco 3750G/3620 perimeter router access lists; configure and maintain Cisco 3620, 4000 and 2500 series routers, Cisco Catalyst 5500 , 2950, 3750, 6509 Switches; Access Server AS 5300; perform LAN/WAN troubleshooting; and monitor the network using Cisco Works and Network Monitor.
• Implement and administer SMS for the entire NMRC site, Windows NOS administration and troubleshooting, and assist in disaster recovery planning.
• Experience with enterprise-class security products such as web proxy, reverse proxy, load balancing, IDS/IPS, DLP, Firewall, IPsec/SSL VPN, WAN/LAN, wireless and remote connectivity.
• Maintain Intranet and Internet for NMRC
• Evaluate existing QoS configurations across all Cisco platforms, Catalyst and Nexus, and provide recommendations to improve performance and consistency in the delivery of latency sensitive applications: voice, video, critical applications
• Have configured ACI for remote Authentication in the respective organization, manage project task to migrate from Cisco ASA firewalls to Checkpoint firewalls.
• Design and Implement Backup Strategy for NMRC NAS and other servers using Veritas Backup Exec 9.1
• Manage Exchange Server 5.5 and Octel Unified Messenger Server for Voice Mail
• Design and Implement Remote Access using Citrix Metaframe Presentation Server 4.0
• Experience Palo Alto, Network Security, Juniper Firewalls, SSL VPN, Checkpoint, RSA, Cisco Nexus, Cisco ACE, Cisco Wireless.
• Design and configuring of OSPF, BGP on Juniper Routers and SRX Firewalls.
• Doing Prep Work for migration to Active Directory for NMRC
• NMRC/WRAIR LAN Re-Design: Upgrading the network from a central core design to a collapsed core network allowing for a 10GB backbone and replacing the existing CAT 8540 switches with highly redundant 6500 series switches.
• Responsible for the administration and support of Cisco ACE and CSS load balancers.
• Replacing the 5500 access layer switches with GB/VoIP capable 4506 series switches.
• Planning for the future implementation of Cisco VoIP.
• Implementing OSPF as the routing protocol of choice and
• Implementing VRRP as the standby protocol replacing HSRP.
• Worked on Checkpoint Platform including Provider Smart Domain Manager. Worked on configuring, managing supporting Checkpoint Gateways.
• Good knowledge on Riverbed Virtual Services Platform (VSP) and Big-IP F5 Load balancers.
• Redesigning the VLAN architecture to make better use of the IP address space.

• Monitor, evaluate & report on health of both Wide & Local Area (WAN/LAN) Networks.
• Implementing and troubleshooting WAN technologies like Frame –Relay, PPP, ATM, ISDN, T1, DS3, OC3 and SDLC
• Configured VPN to allow remote users access to corporate network. Configured Client VPN technologies including Cisco’s VPN client via IPSEC.
• Implement changes on switches, routers, load balancer (F5 and CSS), firewalls, wireless devices per engineer’s instructions and troubleshooting any related issues.
• Has done the Configuration on BIG IP (F5) Load balancers and monitored the Packet Flow in the load balancers.
• Worked with Palo Alto firewalls PA3060, PA5060 using Panorama servers, performing changes to monitor/block/allow the traffic on the firewall.
• Designed, configured, and implemented distribution and access layers network infrastructure for a new building using Cisco Nexus 7009s and using VPCs to floor switches (Catalyst 4510s)
• Configured and maintained Switches & Routers
• Optimized performance of the WAN network consisting of Cisco 4500/5500 switches by configuring VLAN’s for web traffic management and load balancing.
• Implementing and troubleshooting firewall rules in Cisco ASA 5525, 5580, Checkpoint R77.20 Gaia and VSX as per the business requirements.
• Working on different modules of Checkpoint Next Generation firewall R77.30 such as IPS.
• Used F-5Load balancers to increase capacity (concurrent users) and reliability of applications.
• Performed switching technology administration including VLANs, inter-VLAN routing, trunking, port aggregation & link negotiation. Enabled STP Enhancements to speed up the network convergence. Handled STP, VTP, VLAN related issues and tasks. Hands-on experience in Catalyst 2900, 1900 series switches.
• Designed and Configuring the WAN infrastructure, consisting of multiple T1 and T3 lines, Cisco routers, Cisco switches, Load balancers, Dell and Sun servers.
• Proficient with F5 LTM and Cisco CSM load balancer in-between the servers inside the server farm and DMZ. Dealt with F5 load balancing of web traffic and data center environment failover for HA servers.
• Configured OSPF, BGP and EIGRP routing protocol.
• Extensive experience on network cabling for both Fiber and UTP cabling for network building
• Re-design of Internet connectivity infrastructure for meeting bandwidth requirements. This involved negotiating with ISPs, switching from T1 to Flexible T3 lines and configuring/replacing existing Cisco 1605 series routers with Cisco 3640 routers.
• Re-engineered BGP routing (Route Maps, AS-Path prepend, MED, Local Preference) to load balance traffic across multiple ISP links.
• Configured and deployed various Cisco routers, Cisco Nexus Switches and Cisco ASA firewalls in the data center environment.
• Implemented load balancing between Cisco L3 switch by HSRP and GLBP.
• Worked with customers to define, plan and execute technology solutions that are specific to their needs. Deployment and configuration of F5 BIG IP load balancer (LTM, GTM, ASM, and APM Modules).
• Financial Management during the project to ensure timely use of project budget.
• To interact with Global account managers, technical presale team to understand the solutions which has been offered to our global customers and deliver the solution.
• Install and configure the Cisco routers for MPLS (IP VPN QoS), internet and Ethernet private lines.
• Assist in configuring routing protocol: Static routes, RIP, IGRP, EIGRP, OSPF, and BGP.
• Integrate Avaya setup.
• Primary responsibility is to design and deploy various network security & High Availability products like Checkpoint , Cisco ASA other security products
• Experience with enterprise-class security products such as web proxy, reverse proxy, load balancing, IDS/IPS, DLP, Firewall, IPsec/SSL VPN, WAN/LAN, wireless and remote connectivity.

* 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 (NTL 250, TERAYON, and MOTOROLA) And CPE Router (Cisco-Linksys, Belkin, D-LINK 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.
• IOS upgrades on catalyst series switches like 2900, 3560, 3750.
• Troubleshoot TCP/IP problems and connectivity issues in multi-protocol Ethernet environment.
• Implemented trunking protocols like 802.1q on 3750 switches.
• Configured ACLs to provide accessibility and restrict unauthorized users.
• Involved in maintaining STP, RSTP and PVST+ for the catalyst switches I worked on.
• Configured and maintained RIP, OSPF and routing protocols on 2600 and 3600 series Cisco routers.
• Maintaining and troubleshooting of connectivity problems using Ping, Traceroute.
• Assisted in racking and stacking.
• Technical assistance for LAN/WAN management and customer issues.
• Other responsibilities also included documentation.