SUMMARY:

• 10+ years of experience in Networking, including hands - on experience in providing network support, installation and analysis for a broad range of LAN /WAN/MAN communication systems.
• Strong hands on experience in installing, configuring, and troubleshooting of Cisco, and 1800 series Routers, Cisco Catalyst and 3500XL series switches.
• Highly skilled in implementing and troubleshooting complex layer technologies such as VLANs, VTP, Ether channel, STP, RSTP and MST and gateway redundancy protocols like HSRP, VRRP, GLBP.
• Proficient in Cisco IOS for configuration & troubleshooting of routing protocols: MP-BGP, OSPF, EIGRP, RIP, BGP v4, MPLS.
• Strong knowledge on Wireless Standards and Technologies, i.e. Ethernet, WAN, LAN, IEEE 802.11a, b, g, n (Wi-Fi). Cisco Wireless Management system, Cisco Meraki Products, PCI standards.Good knowledge on IEEE 802.15.1 (Bluetooth), Mesh networks, etc.
• Moderate knowledge in configuring and troubleshooting Cisco Wireless networks; LWAPP, WLC, WCS, stand-alone apps, roaming, wireless security basis, IEEE 802.11a/b/g, RF spectrum characteristics.
• Experience working with Cisco Nexus 2148 Fabric Extender and Nexus 5000 series to provide a Flexible Access Solution for a datacenter access architecture
• Experience in VPC, VDC, Fabric path and OTV configurations.
• Experience working on Cisco ASR 9001&ASR 1006.
• F5 BIG-IP application load balancing subject matter expert with particular concentration on layer load balancing using I-Rule scripting in TCL.
• Knowledge on automation tools such as Ansible, Chef and Puppet.
• Experience in writing scripts with Python to perform task automation.
• Hands on experience on windows server 2007, 2008, 2012.
• Experience in Designing and assisting in deploying enterprise wide Network Security and High Availability Solutions for ASA.
• Experience in working with Cisco Nexus Switches and Virtual Port Channel configuration also with Nexus 7K devices.
• Experience on dealing with VoIP information deployment including troubleshooting protocols like Session Initiation Protocol (SIP), Real-Time Transport Protocol (RTP), Media Gateway Routing Protocol (MGRP) and Session Description Protocol (SDP)
• Involved in troubleshooting of DNS, DHCP and other IP conflict problems.
• Knowledge of implementing and troubleshooting complex layer 2 technologies such as VLAN Trunks, VTP, Ether channel, STP, RSTP and MST. Implementation of HSRP, VRRP for Default Gateway Redundancy.
• Experience on dealing with Aruba Wireless products including Access Points, Mobility Access Switches and Outdoor mesh routers
• Hands on experience on dealing with Microsoft Azure cloud computing including implementing access lists in the Network Security Group.
• Responsible for Check Point and Cisco ASA firewall administration across global networks.
• Experience in working with Cisco Nexus Switches and Virtual Port Channel configuration.
• Worked on F5 LTM, GTM 8800 for the corporate applications and their availability.
• Experience working with Nexus 7K, 5K, 2K devices.
• Experience in testing Cisco routers and switches in laboratory and deploy them on site production.
• In-depth knowledge and hands-on experience in Tier II ISP Routing Policies, Network Architecture, IP Subnetting, VLSM, TCP/IP, NAT, DHCP, DNS, FT1 / T1 / FT3 / T3 SONET POS OCX / GigE circuits, Firewalls.
• Strong knowledge of TACACS+, RADIUS implementation in Access Control Network.
• Worked 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.
• Hands on experience in configuring and supporting site-to-site and remote access Cisco, IPsec, VPN solutions using ASA/PIX firewalls, Cisco and VPN client.
• Excellent customer management/resolution, problem solving, debugging skills and capable of quickly learning, effectively analyzes results and implement and delivering solutions as an individual and as part of a team.
• Experience in designing MPLS VPN and QoS for architecture using Cisco multi-layer switches.
• Hands on experience in configuring Cisco Catalyst 2960, 3750, 4500, 6500 and Nexus 3000, 5000, 6000, 7000 series switches and Cisco 2600, 2800, 3600, 3800, 7200, 7600 series routers,Load Balancers& Cisco Firewalls.
• Configuring BGP/OSPF routing policies and designs, worked on implementation strategies for the expansion of the MPLS VPN networks.
• Expertise in creating groups and pruning traffic flow using VLAN, VTP, ISL, 802.1Q.
• Performed switching technology administration includingVlans,inter-Vlan routing, trucking, port aggregation and link negotiation.

TECHNICAL SKILLS:

Routers: 2500, 2600, 2800, 3600, 3700, 3800, 7200, 7609, ASR1k

Firewalls: Juniper SRX, Cisco ASA and Check Point

Routing: OSPF, EIGRP,BGP,RIP, PBR, Route Filtering, Redistribution, Summarization, Static routing

Switches: 2900XL, 2950, 2960, 3560, 3750X, 4500, 6500

Switching: VLANs, Dot1Q, VTP, STP, RSTP, VLAN Maps, HSRP, GLBP, CEF, DCEF, Port Security LAN/WAN Technologies Ethernet, Frame relay, MPLS, HDLC, PPP, T1, T3, OC Standard, ISDN

Operating System: Windows 7/XP, Windows Server 2008/2003

Protocols: IP, TCP, UDP, ICMP, NAT, DNS, DHCP, SNMP, IPSEC, SSL, HTTP, SSH.

VPN Technologies: IPSEC, SSL

WORK EXPERIENCE:

Sr. Network Engineer

Confidential, Coppell, TX

Responsibilities:

• Responsible for leading design, engineering and certification of Internet Hosting and Application Services network components
• Perform WAN and LAN IP network service infrastructure design and engineering; service prototyping and laboratory experimentation
• Formulate detailed network topology layout and traffic flow
• Responsible for determining and certifying selected network technologies
• Provide tiered support including working with the client organizations to analyze technical problems and recommend solutions
• Implement VLANS between different departments and connected them using trunk
• Experience in HSRP standby troubleshooting & Experience in configuring & upgrading of Cisco IOS on 1800, 1900, 2900, 2500, 3900, 7500, 800, 7200, 3750, 2350, 4000, 2960, 3560, 6509
• Deploy and Configure Palo Alto Firewall into production
• Experience in designing and troubleshooting of complex BGP and OSPF routing problems
• F5 Load Balancer setup Adding web servers, LTM Nodes, Pools and members, static and dynamic Load Balancing, destination NAT, iRules, exporting QKView files for Troubleshooting.
• Setup F5 for Test and Production environment
• Troubleshot and configure PAN firewall for Security Policies, Site to Site IPsec VPN, Zones protection profiles, URL Filtering, PAN upgrade, Vulnerability and Spyware Protection, File Blocking and as well pushing configuration from Panorama

Sr. Network Engineer

Confidential, Irving, TX

Responsibilities:

• Provided configuration and troubleshooting skills for data networks including LAN, WAN, WLAN and, Cisco routers, switches, firewalls, wireless access controllers, and other network infrastructure devices as well as Cisco voice and collaboration products
• Configured and maintained Cisco routers, switches, NEXUS, and firewalls (IOS and NX-OS)
• Spearheaded the Core Switch Migration Project from WS-C6506-E to 6513
• Configured switches from scratch to production environment
• Configured STP for loop prevention and VTP for Inter-VLAN Routing
• Experienced in configuring routing protocols like EIGRP, RIPv2, OSPF protocols.
• Configured routing protocols such as OSPF, EIGRP, Route redistribution between OSPF and EIGRP
• Evaluated, analyzed & implemented firewall policies to meet business requirements
• Monitored traffic and access logs in order to troubleshoot network access issues
• Configured and implemented Site-Site VPN connection
• Troubleshot and configured PAN firewall for Security Policies, Site to Site IPsec VPN, Zones protection profiles, URL Filtering, PAN upgrade, Vulnerability and Spyware Protection, File Blocking and as well pushing configuration from Panorama
• Configured access-list, NAT, Object grouping on ASA 5505, 5510, 5545
• Setup policies on PAN firewall and assisted in Troubleshooting for multiple locations
• Setup VPN connection between Cisco ASA and Palo Alto firewalls
• Configured and troubleshot DMVPN for multiple Locations both local and abroad.
• Migrated Cisco ASA environment to Palo Alto firewall
• F5 Load Balancer setup Adding web servers, LTM Nodes, Pools and members, static and dynamic Load Balancing, destination NAT, iRules, exporting QKView files for Troubleshooting
• Configured F5 for Test and Production environment
• Administered A10 Load balancer configuration Stage and Production environment. Adding SLB Virtual Servers, Virtual Service, Service Group, Servers .Setup Virtual service Templates, Health monitor, aflex rule. Removed weak ciphers and Added strong ciphers for Grade B ratings.

Network Engineer

Confidential, Lewisville, TX

Responsibilities:

• Maintained a thorough understanding of the basics behind the Internet and its workings (DNS, Security, IP Routing, HTTP, VPN, etc.).
• Configured and setup Cisco Firewalls, VPN Concentrators and Security appliances for access to vital business applications environments.
• Designed, setup and configured complex wireless networking that supports open or secured access and the ability to support voice and video applications.
• Maintained a thorough understanding of Local Area Networking.
• Assisted in the design of multi-server environments including IP address schemes, DNS, WINS, Ether Channel (Bonding), etc
• Managed assigned projects and program components to deliver services in accordance with established objectives
• Established networking environment by designing system configuration, directing system installation, defining, documenting, and enforcing system standard
• Maximized network performance by monitoring performance, troubleshooting network problems and outages, scheduling upgrades and collaborating with network architects on network optimization
• Undertook data network fault investigations in local and wide area environments, using information from multiple sources
• Secured network system by establishing and enforcing policies, and defined and monitored access
• Supported and administered firewall environments in line with IT security policy
• Reported network operational status by gathering, prioritizing information and managing projects
• Remote troubleshooting and fault finding if issues occur upon initial installation;
• Updated job knowledge by participating in educational opportunities, reading professional publications, maintaining personal networks and participating in professional organizations

Network Engineer

Confidential, Dallas, TX

Responsibilities:

• Maintained and administered Palo Alto Firewalls
• Maintained and administered Cisco wide area routers
• Maintained and administered Cisco Nexus Core Network and 6500/Catalyst access/edge Network
• Maintained and administered F5 load balancers
• Maintained and administered A10 load balancers
• Maintained and administered Data Center power and cooling systems
• Assisted in the delivery of all Unified Communication and Network Infrastructure projects
• Supported of local and long distance carrier circuits, configuration, Quality of Service and routing
• Monitored overall network performance, identifying poor quality lines, underutilized circuits, cost reduction initiatives, upgrade needs and service improvement opportunities
• Maintained current documentation for all voice and data network systems using standard templates including cable systems, equipment inventory, spares, and floor plans
• Communicated frequently and effectively with all levels of internal customers; continuously applies quality improvement methodologies to improve these work processes
• Analyzed user-generated trouble tickets to determine cause of reported problems and take appropriate action for resolution.
• Assisted in the support, management and day to day operations of the corporate firewall and network infrastructure, including 24x7 on-call support
• Executed hardware and software life-cycle management policies and procedures as it relates to the voice and data Network to meet business needs
• Deployed a robust, stable, and manageable LAN/WAN/DMZ for the network
• Managed projects from inception to completion
• Configured and supported switches, routers, load balancers, and firewalls
• Provided 1st/2nd level support for network escalations
• Monitored and responded to event dashboards

Network Administrator

Confidential

Responsibilities:

• Directed the installation and maintenance of PC applications, including Microsoft Office Suite, print drivers, and network settings
• Ensured timely and accurate integration of systems and provided education to teams on the proper usage of programs
• Launched and maintained network operations; assembled computer and network hardware, supported clients and network engineers, and escalated issues as necessary
• Identified, troubleshot, diagnosed, and resolved hardware or software issues while achieving minimal system downtime
• Coordinated and led the upgrades of PC and network hardware and software components, including LAN and WAN technologies
• Proven successes in the administration of multi-site WAN/LAN networks
• Expert in configuring and maintaining Cisco routers, switches, NEXUS, and firewalls (IOS and NX-OS)
• Expert in setting up VPN for multiple clients
• Ability to provide configuration and troubleshooting skills for data networks including LAN, WAN, WLAN and Cisco routers, switches, firewalls, wireless access controllers, and other network infrastructure devices
• Ability to operate Layer 2 protocols such as VTP, STP, RSTP, PVSTP+, MST and other VLAN troubleshooting issues
• Ability to configure STP for loop prevention and VTP for Inter-VLAN Routing
• Ability to configure ASA Firewall for multiple clients
• Experience in configuring routing protocols like EIGRP, RIPv2, OSPF protocols