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Sr. Network Engineer Resume

St, LouiS

SUMMARY:

  • A dynamic professional with 7+ years of experience in Networking and Security, including hands - on experience in Routing, Switching, Network design, Implementation and troubleshooting of complex network system by providing network support, installation and analysis for a broad range of LAN / WAN/MAN communication systems.
  • 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
  • Experience in configuring and troubleshooting OSPF, EIGRP, BGP, VLAN’s, Trunking, VTP, STP, PVST, RSTP, HSRP, 802.1q, and Ether-channels.
  • Experience securing and managing remote access using various VPN technologies like IPSec, SSL, and GRE.
  • Experience in Policy based filtering using Palo Alto Firewalls.
  • Working knowledge of network monitoring/management tools like Wireshark, TCP dump, Cisco Prime, PRGT, Solar Winds.
  • Good understanding of windows and VMware server automation using scripting language Power shell, VB Script, Power CLI.
  • Integrating Symantec DCS with NSX, providing server hardening.
  • Experience in Designing and assisting in deploying enterprise wide Network Security and High Availability Solutions for ASA.
  • Experience in Checkpoint, Cisco ASA firewall rule creation and implementation via change control procedures for testing and production push.
  • 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.
  • Used Bluecoat ProxySG Appliances to effectively secure Web communications and accelerate delivery of business applications.
  • Experience in installing and configuring DNS, DHCP server.
  • Installation, configuration and development of security policies using Juniper SRX firewalls and EX clustered switches.
  • Set up and managed the Cloud based monitoring of all Cisco Meraki wireless Aps and networks.
  • Designed and installed Aruba Wi-Fi network to supply wireless connectivity to both employees and guests using segregated VLANs.
  • Strong grasp of Bridging/Switching protocols knowledge (MPLS, STP, RSTP, 802.1x, 802.3)
  • Experience with convert Checkpoint VPN rules over to the Cisco ASA solution. Migration with both Checkpoint and Cisco ASA VPN experience
  • Performed load balancing and application level redundancy by deploying F5 BIG-IP LTM 3900.
  • Involved in the configuration and maintenance of IPSec Site-Site VPN.
  • Background in network design, including Wide Area Networking (WAN), Local Area Networking (LAN), Multiple Protocol Labeling Switching (MPLS), DS3.
  • Moderate knowledge in configuring and troubleshooting Cisco Wireless Networks,LWAPP, WLC, WCS, Standalone APs, Roaming, Wireless Security Basics, IEEE 802.11 a/b/g, RF spectrum characteristics.
  • Involved in designing and commissioning WAN infrastructure for redundancy in case of link failure. Responsible for technical evaluation, troubleshooting, overall project management, problem solving and turn-up of the service with the ISP.
  • Deploy, scale and automate network across multiple global datacenters supporting Amazon Web Services (AWS).
  • Created and design network layout and documented network system design with detail information using Visio software. Vendor co-ordination for hardware issues and assessment management.
  • Configuring and implementing routing protocols including RIP, TCP/IP, RIP v1/v2, OSPF, EIGRP, ISIS and BGP.
  • Daily responsibilities included monitoring remote site using network management tools, NetScout assisted in design guidance for infrastructure upgrade & help LAN administrator with backbone connection and connectivity issues
  • Working knowledge of frame relay, MPLS services, OSPF, BGP and EIGRP routing protocols, NAT'ing, sub-netting, also including DNS, WINS, LDAP, DHCP, http, HTML, HTTPS, TCP/IP, UDP, SNMP, OSPF, RIP, IPSEC, PPTP, VLAN, STP (Spanning tree Protocol), RTSP & Multicasting protocols.
  • Provisioning and Tier 3 support for all Avaya sets that include 2400, 2500, 4600, 6300, 7400, 8400 and 9600 phone sets.
  • Extensive knowledge of deploying & troubleshooting TCP/IP, Implementing IPv6, Translation from IPv4 to IPv6, Multilayer Switching, UDP, Ethernet, Voice & Data Integration techniques.
  • To secure configurations of load balancing in F5, SSL/VPN connections, Troubleshooting CISCO ASA firewalls, and related network security measures
  • Troubleshooting Layer 2 issues, Spanning Tree protocol, RSTP, MST, VTP, VLAN on Cisco - 6500 series switches and Juniper switches
  • Extensive knowledge in different networking protocols DHCP, DNS, FTP, VOIP (SIP, H.323, MGCP), Quality of Service (QOS).
  • Extensive knowledge in developing test plans, procedures, and testing Various LAN/WAN Products and Protocols.
  • Hands on experience on VCS, Video Applications, Session Control and Firewall traversal
  • Strong interpersonal, organizational communication, customer service & presentation skills.
  • Performed professional level documentation using Visio diagrams.

TECHNICAL SKILLS:

Routers: Cisco 7600, 7200, 3800, 3600, 2900, 2800, 2600

Routing: OSPF, EIGRP, BGP, RIP v1/v2, PBR, Route Filtering, Redistribution, Summarization, and Static Routing.TCP

Switches: Nexus 2K/5K/7K, Cisco Catalyst 6500, 4500, 3850,3560, 3750, 2960

Switching: LAN, VTP, STP, PVST+, RPVST+, Inter VLAN routing & Multi-Layer Switch, Etherchannels, Transparent Bridging. LINUX

Network Security: Cisco ASA 5540, ACL, IPSEC,F5 Load Balancer,Checkpoint, Wireless Networks,control

Load Balancer: F5 Networks (Big-IP) LTM 8900 and 6400. Palo Alto,Juniper,automation

LAN: Ethernet (IEEE 802.3), Fast Ethernet, Gigabit Ethernet

WAN: PPP, HDLC, Channelized links (T1/T3), Fiber Optic Circuits, Frame Relay, MPLS

Gateway Redundancy: HSRP and GLBP

WAN Optimizer: Riverbed Steelhead Appliance

DHCP and DNS: Infoblox

Various Features & Services: IOS and Features, IRDP, NAT, SNMP, SYSLOG, NTP, DHCP, CDP, TFTP, FTP.

AAA Architecture: TACACS+, RADIUS, Cisco ACS.

Network Management: Wireshark, Solarwinds,Netscout, Nagios

PROFESSIONAL EXPERIENCE:

Confidential, St.louis

Sr. Network Engineer

Responsibilities:

  • Configuring, troubleshooting, managing and maintaining Cisco ASA firewalls, load balancers, routers & switches (Catalyst 6513 and Nexus 5k & 7k).
  • Basic knowledge with Cisco MDS9513 SAN switches.
  • Experience on DNS appliance-Infoblox and NTP appliance-Spectracom.
  • Management of Infoblox Grid Manager to manage DNS Forward and Revers Lookup Zones.
  • Experience with migrating catalyst 6500 to Cisco Nexus in the data center environment.
  • Deploy, Monitor & Troubleshoot 80+ Switches using Nagios XI monitoring tool.
  • Designed and implemented a brand new campus LAN/WAN using Cisco routers, switches, and Checkpoint firewalls
  • Nexus OS, IOS and CAT OS upgrade procedures and Pre/Post checks for customer production upgrades.
  • Configuring GLBP, VLAN, VTP's, Trunking 802.1Q, STP, Port security on Catalyst 6500 switches.
  • Assist in remediation of identified security vulnerabilities associated with network security infrastructure components.
  • Experience in Physical cabling, IP addressing, configuring and supporting TCP/IP.
  • Sound comprehension of Security arrangements including ACL, Firewall, IPSEC, SSL, VPN, IPS/IDS, AAA (RADIUS).
  • Working experience in Start-up and Shutdown scripts, file system maintenance backup scripting and automation using Shell scripting, Bash and Perl.
  • Configured VMware ESXi 4.0/5.0/5.5/6.0/6.5 and build VMs with Windows 7/8/2008/2012 R2 OS and Centos/Linux 5, 6.0 Operating systems on the Server farm.
  • Configure and tested Cisco AP and Controller design solutions for TWC Wi-Fi Core.
  • AAA implementation using Cisco Secure ACS (TACACS, RADIUS).
  • Evaluate various reports including Firewall logs, TACACS reports, bandwidth utilization reports and network health checks.
  • Excellent knowledge and experience on multi-vendor platforms like Cisco, Juniper, Checkpoint, F5 Big-ip LTM load balancers, Bluecoat, Riverbed, Citrix, and VMware
  • Designed and implemented networking for disaster recovery sites.
  • Design, deployment, and maintenance of enterprise AWS network and VPC deployment to adhere to AGILE development methodology.
  • Assist in planning, design, and installation of network segmentation firewall rules to support security architecture designs, strategies and compliance
  • Participate in the team review of firewall configuration prior to implementations.
  • Handling Incident & Problem Management, Changes & Documentation.
  • Configuring VLAN, Spanning tree, VSTP, SNMP on EX series switches
  • Unix/Linux administrative support.
  • Expertise in maintenance of layer2 switching tasks which advocate VLAN, VTP, STP, RSTP, PVST, RPVST, configuring of ether channel with LACP and PAGP along with troubleshooting of inter-VLAN routing.
  • Working knowledge on LAN virtualization by VMware NSX and good understanding on vSphere and Citrix Xenserver.
  • Assist in documenting of network security infrastructure component.
  • Work collaboratively and have good written and oral communication skills.
  • Hands on experience in Installing and Configuring Palo Alto PA-3060 Firewalls to protect Data Center.
  • Configured VMware Auto deploy software on VCenter Servers to facilitate auto discovery of ESXI Host on UCS Blades.
  • Configuring IPSEC VPN (Site-Site to Remote Access) on SRX series firewalls.
  • Configured routing protocols OSPF, EIGRP, RIP and BGP V4.
  • Responsible for Cisco ASA firewall administration across our global networks.
  • Involved in configuring and implementing F5 BIG-IP LTM, GTM load balancers to maintain global and local traffic.
  • Deployed SolarWinds agents to Windows and Linux servers. WMI was also used to monitor the servers.
  • Performed Avaya PBX cross connects and utilized Avaya System Administrator to issue user extensions.
  • Managed Moved, Added and changes for Avaya PBX System.
  • Experience on dealing with Aruba Wireless products including Access Points, Mobility Access Switches and Outdoor mesh routers.
  • Performance monitoring of various applications and web servers to maintain quality of service and network stability.
  • Packets capture using bluecoat proxy and analysis the packets and communicating them with vendor for further investigation.
  • Network Monitoring using SNMP and other tools such as SPLUNK, SolarWinds
  • Upgraded existing network to Juniper switches, as well as Juniper routers also Provide support installing, configuring, and troubleshooting hardware and software.
  • Good knowledge in network hardware and technologies including f5 load balancer, Firepass, Edge gateway, checkpoint firewalls, DNS Architecture, SSL VPN, routers, switches, SDH, DWDM Ethernet, frame relay, wireless, Infoblox, Nortel, Cisco ASA firewall etc.
  • Support Network Technicians as they require training & support for problem resolution including performing diagnostics & configuring network devices.
  • Configure outbound web flow policies on Palo Alto devices.
  • Expertise on various AWS Services in Compute, Storage, Network, Database, Monitoring and Security.
  • Cloud design: Participate in Amazon AWS / Microsoft Azure network design and implementation.
  • Participated in the design and implementation of the next generation NSX SD-WAN product portfolio.
  • Configuring Virtual Chassis for Juniper switches EX-4200, Firewalls SRX-210
  • Analyzed and tested network protocols (Ethernet, TCP/IP) mistreatment Wireshark tool.
  • Hands on experience with layer 2 and layer 3 configurations, troubleshooting and dealt with Nexus models like 7k, 5k and 2k series in data centers
  • Support senior wireless network engineer in researching, planning and implementing wireless network security protocols and technologies.
  • Experience with conventions, for example, Frame Relay, IEEE 802.11 and VLAN, OSPF and BGP, DNS, DHCP, FTP, NTP, SNMP, SMTP and TELNET.
  • Installing and configuring DNS, DHCP server.
  • Configured the Cisco 1850 and 1830 mobility express controller and APs for the WLAN environment.
  • Involved in designing and commissioning WAN infrastructure for redundancy in case of link failure.Responsible for technical evaluation, troubleshooting, overall project management, problem solving and turn-up of the service with the ISP.
  • Configuring RIP, OSPF and Static routing on Juniper M and MX series Routers.
  • Involved in implementing & Designing the switched network. Configured STP, VTP and dot.1q in switching network.
  • Experience in configuring and troubleshooting IPSEC site to site VPN solutions.

Environment: Cisco 3640/1200/7200/3845/3600/2800/2600/3500/7613 Routers, Cisco 3750/3550/3500/2960/4500/6500 Switches,LAN,WAN,EIGRP,OSPF,RIP,BGP,F5 Load Balancer,VTP,DNS,VLAN,HSRP,HTP,IPV4,Nexus 5K,7K,LTM,GTM

Confidential, Atlanta, GA

Network Engineer

Responsibilities:

  • Assisted with troubleshooting all network issues with routers and switches when necessary and consulted with on call tech as needed for client.
  • Validate existing infrastructure and recommend new network designs.
  • Maintain and implement all Checkpoint firewall, Cisco ASA firewall and Palo alto change requests from clients. This includes assisting in the correct determination of application flows necessary.
  • Good hands on HPNA Automation and Systems Integration •
  • Designed and installed Aruba Wi-Fi network to supply wireless connectivity to both employees and guests using segregated VLANs.
  • Knowledge of modifying and maintaining the Bluecoat Proxy Pac file.
  • Installed and maintained Cisco and F5 Load Balancer documentation.
  • Responsible for network design, bandwidth allocation, IP address allocation, supervising installation, configuration and maintenance on major network technologies.
  • Trade show technical Network design/implementation, demos, Customer Site Installs, Legacy (UNIX) based system support.
  • Worked with various internal organizations during pre/post deployment phase of different type of circuits.
  • Troubleshooting of hardware, software and connectivity issues for Avaya PBX, Modular Messaging, Avaya Communication Manager.
  • Working knowledge on LAN virtualization by VMware NSX and good understanding on vSphere and Citrix Xenserver.
  • Advanced level knowledge of any of the following protocols OSPF, EIGRP, HSRP, VLAN, and TCP/IP.
  • Used Windows Server Manager to build a server on a VMware ESXI for RDE Technology
  • Install and configure Meraki (MX80, MX60) Appliance via Meraki MX400 Cloud.
  • Installed and configured Cisco 2600, 2800, 3600, 3800 routers and 2950, 3700, 6500 switches.
  • Maintained and managed networks running OSPF and BGP routing protocols.
  • Daily monitoring of network traffic using sniffers (Wireshark) and access logs to troubleshoot and identify network issues.
  • Developed scripts and made changes to call flows within the Avaya PBX.
  • Adding Websites to blocked list on the bluecoat proxies based upon business requirements.
  • System administration of Redhat Linux DNS servers.
  • Administration of Juniper SSL VPN, Web sense Web Security and Iron port.
  • Implemented rules on Juniper SRX 550 at the server farm.
  • Program and implement Automation systems including electrical schematics, PLC ladder logic
  • Knowledge on Amazon AWS Virtual private cloud services.
  • Network monitoring and alert response and remediation using SolarWinds.
  • Performed switching technology administration including VLANs, inter-VLAN routing, Trunking, port aggregation.
  • Responsible for the settings, configuration and maintenance of WAN/LAN and related hardware/software including Riverbed WAN optimization appliances, Juniper firewalls, switches, routers and VPN appliances, Palo Alto firewalls
  • Route redistribution and route update manipulation using route-maps; distribute lists and AD manipulation and link negotiation.
  • Tracked, reported, and resolved Network, Firewall, VTC & Webcast problems.
  • Providing Tier II support in the provisioning, end-to-end test and turn-ups and maintenance of the major accounts. Optimizing Network by continuously and extensively working with customer to upgrade and optimize network and Circuit Move Add Changes including detailed design documentation.
  • Created and managed an array of VM products included VMware and HyperV.
  • Performed Layer I, II and III troubleshooting, while maintaining trouble ticket tracking, following internal/external escalation procedures and customer notifications. Configured Cisco Routers for BGP, OSPF, RIP, RIPv2, EIGRP, Static and default route in a VPN environment using MPLS.
  • Implemented and troubleshooted the MPLS network.
  • Configured AWS Virtual Private Cloud environment and networking inside the VPC
  • Implemented changes and upgrades to network equipment and perform quality assurance reviews of those upgrades. Reviewed all changes to network configuration for technical accuracy and impact.
  • Developed network automation scripts using Python and Netmiko to fill knowledge gaps in the VCU network implemented One Time Password Secondary Authentication solution for Juniper SSL VPN clients that reduced Customer access time by two weeks
  • Provided Network Support in the designing and implementation of Point to Point over T1s Frame Relay, DSL over ATM and IP over Frame Relay and Gigabit Ethernet.
  • Documentation of network resources, systems, peripherals, procedures and policies for optimization of IT resources and security.
  • Performed troubleshooting, while maintaining trouble ticket tracking, following internal/external escalation procedures and customer notifications. Configured Cisco Routers for OSPF, RIP, IGRP RIPv2, EIGRP, Static and default route.
  • Provided firewall policy configuration and services with Juniper SRX 240 & 650 service gateways.
  • Experience in Network Management Tools and sniffers like SNMP, SOLARWINDS, STATSEEKER, HP-Open view, Wireshark and Cisco works to support 24 x 7 Network Operation Center.
  • Proficient in using Network Management Application layer software's like SNMP, Solar winds, NTP and Syslog
  • Responsible for Checkpoint and Cisco ASA firewall administration across global networks.
  • Generating RCA (Root Cause Analysis) for critical issues of layer1/layer2/layer3 problems.
  • Co-ordinated with the Data Network and Security team and came up with possible solutions.
  • Work on Physical site Inventory verification, gather information of various Cisco Network devices and Security Devices to develop Run book and Spec Book.
  • 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.
  • Configuration and troubleshooting of Cisco catalyst 6509, 7613 with supervisor cards.
  • Experience with implementing and maintaining network monitoring systems (Cisco works and HP Open view) and experience with developing complex network design documentation and presentations using VISIO
  • Estimated Project costs and created documentation for project funding approvals.

Environment: Cisco routers (7600, 3800, 2800) and Cisco switches (6500, 3700, 4900, 2900), Nexus (7K, 5K & 2K), Data Centers, FEX, Routing Protocols (EIGRP, OSPF, BGP), ASA, Palo Alto, Fortinet, F5 load balancing, STP, VLAN, MD5, 3DES, AES, OTV, CitrixVLANS, SNMP, NAT, cisco IO, HSRP, VLAN trunking 802.1Q, F5 Networks Big IP, CISCO ASA and Checkpoint firewall, Palo Alto 3000, 5000 series

Confidential, NY

Network Engineer

Responsibilities:

  • Configuring routing protocols OSPF, EIGRP, RIP, MPBGP, LDP and BGPV4.
  • Provided estimated bandwidth requirements for data replication, to best determine adequate timing for migration service levels
  • Documented migration of data center from legacy switches to nexus switches
  • Configuring HSRP between VLANs, Configuring Ether-Channels, Port Channel on 6500 catalyst
  • Switches Replace branch hardware with new 2851 routers and 2960 switches.
  • Worked on Cisco ACE load balancers. Experience with F5 load balancers - LTM, GTM series like 6400, 6800, 8800 for the corporate applications and their availability.
  • Implemented WLAN Aruba Wireless Access Points and its Controllers at various corporate sites fort 11n Infrastructure and its legacy technologies.
  • Setup Access list and configured Firewall.
  • Developed CTI solution to integrate Avaya AES 4.2.
  • Some familiarity with Zabbix, AWS, Git, Nginx, Ansible.
  • Deploying, Scaling and troubleshooting many Datacenters across all of AWS network fabrics.
  • Migrated to Juniper EX series switches from Cisco 3500 series and 6500 series switches.
  • Hands on experience in installing, configuring and administration of Firewalls including Cisco PIX, Cisco ASA, Checkpoint, Palo Alto and Load Balancers like Big-IP F5 (LTM and GTM).
  • Implemented QoS for Voice traffic.
  • Design and Building Software-Defined Data Center environment, including Vmware, VCenter, NSX and Cisco ACI.
  • Understanding of SDN/NFV ecosystem SDN controller with Real-time engagement, support diagnostics, billing and business automation for SDN.
  • Provided hands-on support for environment including on-call support for switches, routers and servers. Used Solar winds, DHCP, DNS to troubleshoot issues.
  • Planned and executed the migration from PSTN to IP Telephony, CUCME and 7960 IP Phones.
  • Designed and implemented IT security policies and networked backup systems.
  • Documented and maintained technical diagrams, documented logical and physical topology, and other IT procedures.
  • Implement wireless security components, WPA2/WPA/ TKIP/AES. Perform full/incremental backups on core devices, websites, and servers.
  • Reviewed, approved, procured various IT hardware and software products to fulfill strategic and operational needs of various departments.
  • Worked with management and various departments to develop procedures and troubleshoot problems as they arose.
  • Hands-on experience in creating security zones and security policies on branch Juniper SRX 240 and SRX 100 firewalls.
  • Coordinated with higher-level support and external vendors for resolution
  • Maintained all servers & network equipment with current stable firmware, IOS images & access control lists.
  • Experience in installation, configuration and management of VMware vSphere network test environment.
  • Adding Websites to the URL filtering blocklist in Bluecoat Proxies and upgrading firmware on the bluecoat proxies.
  • Configure and maintained IPSEC and SSL VPN's on Palo Alto Firewalls
  • Implemented strategies for operating systems, virus protection, mail systems and Internet services
  • Study single point failures & design WAN structure in such a way that there are no failures in network in case of any device or link failure.
  • Performed scheduled Virus Checks & Updates on all Servers & Desktops.
  • Resolved all computer related problems, monitored and maintained system functionality and reliability by identifying ways to prevent system failures

Environment: Cisco 2600/2800/3600/3800 Routers, Cisco 2950/3700/6500/7613 switchesFirewall,RIPv2,OSPF,BGP,EIGRP,LAN,WAN,MPLS,F5 Load Balancer, VLAN, Trunking, ATM, PPP

Confidential

Windows/Network Administrator

Responsibilities:

  • Installed and configured DHCP, DNS Server.
  • Worked on configuration and installation of new desktops for users using GHOST, EZ copy and Disk-to-Disk copy
  • Updated the anti-virus, spam blockers, and other security software so that the systems are always secured
  • Primary network configuration and support for global infrastructure between branch sites utilizing SD-WAN and WAN Optimization technologies (incorporating full redundancy via hardware and WAN Link Load Balancing).
  • Configured and troubleshooting Riverbed WAN optimization software to improve the network acceleration at the user end.
  • Implementing VoIP solutions using SIP & H.323, also have sound knowledge of Avaya VoIP.
  • Black listing and White listing of web URL on BlueCoat Proxy servers.
  • Knowledge about wild fire feature of Palo Alto
  • Resolved all computer related problems, monitored and maintained system functionality and reliability by identifying ways to prevent system failures
  • Understand the JUNOS platform and worked with IOS upgrade of Juniper devices
  • Identifying technical problems and debugged hardware and software related to LANs/ WANs.
  • Upgradation of nexus OS from 6.2.2a to a higher version to increase performance and support new features on both N7010 & N7710 chassis
  • ASA/PA firewall Log Maintenance and Policy Maintenance. Troubleshooting complex Checkpoint issues, Site-to-Site VPN related.
  • Switching related tasks included implementing VLANS, VTP and configuring ISL trunk on Fast - Ethernet channel between switches.
  • Troubleshot Cisco hardware: Inspected devices, Read device LEDs, loose connections, interior IOS upgrade, switch port configuration, port monitoring, watch over Flooding Control/Network port.
  • Develop and implement strategies to support the current and future needs of the company.
  • Configured Cisco Routers 2600 series using RIP, OSPF and EIGRP.
  • Configured Cisco Switches 2900.
  • Strategies include operating systems, virus protection, mail systems and Internet services

Environment: Cisco 2600/2800 Routers, Cisco 2950/3700 switches, OSPF,BGP,EIGRP,LAN, WAN, MPLS, VLAN, Trunking.

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