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Sr. Network Engineer Resume

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Dallas, TX

SUMMARY

  • Around 8 years of strong experience in planning, designing, implementing, maintaining and troubleshooting of the network.
  • Technically proficient in Installation, Configuration in Cisco/Juniper switches, Cisco/Juniper routers, Cisco Access Points, Cisco ASA firewalls, Check Point Firewalls, Palo Alto Firewalls and F5 Load Balancers.
  • Expert Knowledge on OSI Model, TCP/IP Model, Cisco IOS, NX - OS.
  • Good experience in routing protocols such as RIP, EIGRP, OSPF, BGP.
  • Experience in configuring ACLS both standard and extended and also switch port security.
  • Experience in IP addressing, sub netting and VLSM.
  • Proficiency in configuring Nexus switches of 2k, 5k and 7k series.
  • Experience in Amazon Web Services (cloud) EC2, S3, EBS and configuring VPC, ELB, DNS.
  • Expertise in network protocols, Firewalls and Communication Network design.
  • Strong hands on experience in layer-3 Routing and layer-2 Switching.
  • Performed Data Center migration of Cisco Catalyst Switches with the new Nexus Switches.
  • Having experience in Cisco Dynamic Fabric Automation (DFA) solution.
  • Expertise in implementing switch security and firewalls.
  • Expertise in implementing security policies like ACLs, NAT, PAT, IPS, IDS, VPN.
  • Experience in redundancy protocols such as HSRP, VRRP and good knowledge in GLBP.
  • Good knowledge in Intrusion Detection and Prevention.
  • Good knowledge on fiber optics and mainly in the field of T1/E1, OC 192, DWDM.
  • Implementation of FabricPath in the data centres.
  • Successfully implemented VRF technology on Cisco technology.
  • Proven ability to absorb new material and transfer knowledge to co-workers and users.
  • Involved in troubleshooting of DNS, DHCP and other IP conflict problems.
  • Strong knowledge of Network Access Control Server, RSA SecurID two-factor authentication, digital certificates & logging.
  • Expert understanding of switching * VLAN, Voice VLAN, VTP, STP, PoE, Ether channel, HSRP, Routing Protocols etc.
  • Experience with Palo Alto Networks Next Gen firewalls.
  • Good hands on exposure on Remote Access VPN - Cisco ASA/Juniper
  • 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.
  • Adept in preparing Technical Documentation and presentations using Microsoft VISIO/Office
  • Able to communicate well and convey information with the team members, and the staff of the organization and also with the other vendors.

TECHNICAL SKILLS

Domain Area: Network Designing, Network Troubleshooting, Network Security etc.

Networking Equipment: Cisco 2500,2600,2800,3600,3800,7200,7600 series routers; Juniper MX10, MX 40 Cisco 1900,2900, 3500,3750,4900,6500 series catalyst switches Nexus 1000v/ 2000/3000/5596/7018. Juniper EX 2300, EX 3300 Cisco Aironet 1200/2600/3600 Cisco ASA Firewall 5505, 5506-X, 5512-X Check Point Firewall GAiA R77 Palo Alto Firewall 7k, 5k series.

Routing Protocols: Static Routing, RIP V1, V2; EIGRP, OSPF, BGP, MPLS, ACLs, Route Redistribution and Summarization, VRF.

LAN Technologies: Ethernet/ Fast Ethernet/ Gigabit Ethernet networks, VLANS, VTP, STP (CST, PVST, RPVST+, RSTP), 802.1q, ISL, Ether channel, EVPL, HSRP, VRRP, GLBP, Cisco SLB, GSLB, F5 load balancers.

WAN Technologies: Cloud

Wireless Network Tools: 802.11 Standards, TCP/IP, OSI Layer, Fiber Optics, T1/E1, DWDM, OC192.

Amazon Web Services: Airmon-ng

Communication Protocols Tools: PPP, Frame Relay, SSL, HTTP, MPLS, 802.11 Citrix NetScaler, Solarwinds, PRTG Monitor

Communication Concepts: VoIP

Monitoring Tools: VPN, Multicasting, IPSEC VPN, TLS, SSL

Platforms: Asterisk server, SIP, RTP

Applications: Zenoss, Netcool, Solarwinds Cisco IOS, NX-OSWindows XP, Vista, 7, 8, 10 and LINUX MS VISIO, MS Office

PROFESSIONAL EXPERIENCE

Confidential, Dallas, TX

Sr. Network Engineer

Responsibilities:

  • Installation, configuring and managing the Cisco, Juniper Routers and switches of series 2800, 3700, 3800, and 7200, Juniper MX10, MX 40 also catalyst switches 2900, 3500, 4500, and 6500, Juniper EX 2300, EX 3300 and good knowledge on Cisco IOS and NX-OS.
  • Configured fabric path, VPC, VDC on Nexus 7k series.
  • Configured OSPF and modified OSPF costs to reduce delay and bandwidth to divert the traffic and also performed OSPF summarization.
  • Configured BGP and performed route
  • Cisco routers of series 7600 and 7200 on all edge routers and also the Nexus switches 5k, 7k.
  • Configuration of VPC, ELB, Route 53 and monitoring the network using cloudwatch in AWS.
  • Enabled Spanning Tree Protocol, STP BPDU guard and VLANs on switches within the organization.
  • Designing and configuration of F5 load balancer both BIG-IP LTM and DNS.
  • Configured Check Point Firewall and Cisco ASA Firewall.
  • Migration of Check Point to Palo Alto Firewalls.
  • Installation, upgradation and troubleshooting of Palo Alto firewalls.
  • Configured RADIUS and TACACS server.
  • Configured the ether channel between the switches in order to improve the bandwidth and connectivity between the switches.
  • Performed racking and mounting of the switches and also installation of the fiber optics of OC 192 and T1.
  • Configured Cisco GSLB and SLB loadbalancer.
  • Configured LAN/WAN and also maintained the routers in the network which includes OSI Layer, TCP/IP, DNS, DHCP and NAT.
  • Monitored network with the tools like SNORT, Solarwinds.
  • Configured and managed VLANs, 802.1Q Trunk, RPVST+, Inter-VLAN routing, HSRP and LAN security for Layer-2 and Layer-3 switching domains as per the organization's requirement plan.
  • Involved in the configuration and maintenance of IPSEC Site-Site VPN.
  • Troubleshooting the issues with the MPLS VPN connectivity and also Configured Virtual Routing Forwarding (VRF) on Cisco routers.
  • Worked in configuration of Cisco Access Points 2600.
  • Analyzing and troubleshooting wireless networks using Airmon-ng.
  • Involved in providing access to user machines and partners outside our network by SSL and IPsec VPN tunneling.
  • Part of team in planning for the proposed network.

Environment: Cisco Routers (7600, 7200, 3800, 3700, 2800), Juniper (MX10, MX 40), Cisco catalyst Switches (6500, 4500, 3500, 2900), Nexus switches (5k, 7k), Juniper (EX 2300, EX 3300), Routing Protocols( OSPF, BGP), Communication Protocols(MPLS), Authentication(RADIUS, ACACS) Sniffing Tools(Wireshark), Wireless Tools (airmon-ng MS Visio, IPSEC VPN, Cisco IOS, NX-OS, Solarwinds, And Zenoss).

Confidential, Dallas, TX

Network Engineer

Responsibilities:

  • Established network between various fields of the company such as data centers and field offices.
  • Configuring, monitoring, and troubleshooting of the cisco routers and switches for the network established between field offices and data centers with a good knowledge on Cisco IOS.
  • Monitored the network with the help of Solarwinds.
  • Ensuring 24/7 connectivity of the network is the key responsibility.
  • Configured AAA (authentication, authorization and accounting) on all routers.
  • Secured Network access using RADIUS.
  • Configured Nexus switches 2k, 5k, 7k with a good knowledge on NX-OS.
  • Configuring and troubleshooting routing protocols on LAN/WAN which includes EIGRP, OSPF, BGP.
  • Configured EVPL to support multiple EVCs
  • Provided switching security which includes port security, STP, VLAN for both data and voice.
  • Deployed DWDM cabling (fiber optics) in the new office which contains OC12, OC 48, and OC 192 and also done cabling on T1 cables.
  • Configured redundancy protocols such as HSRP and VRRP.
  • Configured RADIUS and TACACS server.
  • Configured F5 load balancer and also Citrix NetScaler to monitor the network, load balancing and also GLBP, creating a site for web interface for the internal clients.
  • Configured Cisco ASA Firewall.
  • Monitored the network traffic using monitoring tool Netcool.
  • Maintenance of WAN in the organization which includes OSI Layer, TCP/IP.
  • Automated configuration backup to the TFTP server using Python script.
  • Configured IPSEC VPN between the main office and the remote locations.
  • Analyzing the wireless networks using Airmon-ng and writing a detailed report about the power of the various access points at different places.
  • Troubleshooting network with the tools such as Wireshark, tcpdump.
  • Established MPLS VPN between branch offices located in various locations and Configured Virtual Routing Forwarding (VRF) on Cisco routers.
  • Configured frame relay on external routers that connected the branch offices of various locations.

Environment: Cisco Routers (7600, 7200, 3800, 3700, 2800), Routing Protocols (EIGRP, OSPF, BGP) Communication Protocols(MPLS), Redundancy Protocols (HSRP, VRRP), Wireless Tools(airmon-ng) Authentication (RADIUS and TACACS)

Confidential, Santa Clara, CA

Network Engineer

Responsibilities:

  • Configured Firewall logging, DMZs& related security policies & monitoring.
  • Installed and configured Cisco ASA 5500 series firewall and configured remote access IPSEC VPN on Cisco ASA 5500 series.
  • Hands on Experience working with security issue like applying ACL’s, configuring NAT and VPN.
  • Documenting and Log analyzing the Cisco ASA 5500 series firewall.
  • Responsible for Internal and external accounts and, managing LAN/WAN and checking for Security.
  • Work on different connection medium like Fiber and Copper Connectivity.
  • Planning and configuring the entire IP addressing plan for the clients' network.
  • Assist the certification team and perform configuration of LAN\WAN technologies such as Ethernet, Fast Ethernet, and Gigabit Ethernet.
  • WAN Infrastructure running OSPF & BGP as core routing protocol.
  • Support various Routers like 2600/3600/7200 series routers.
  • Responsible for Configuring SITE TO SITE VPN on Cisco ASA 5500 series firewall between Head office and Branch office.
  • Installed and configured Cisco ASA 5500 series firewall and configured remote access IPSEC VPN on Cisco ASA 5500 series.
  • Planning and configuring the routing protocols such as OSPF, RIP, and Static Routing on the routers.

Environment: Routing Protocols (EIGRP, RIP, BGP),Cisco switches (2900, 4900, 2900), Cisco ASA Firewall (5510) Switching protocols (VTP, STP, GLBP).

Confidential

Network Engineer

Responsibilities:

  • Configured RIP and EIGRP on 2600, 2900 and 3600series Cisco routers
  • Involved in troubleshooting of DNS, DHCP and other IP conflict problems
  • Implemented VTP and Trunking protocols (802.1q and ISL) on 3560, 3750 and 4500series Cisco Catalyst switches
  • Provided on-call support for installation and troubleshooting of the configuration issues
  • Configured Standard, Extended, and Named Access Lists to allow users all over the company to access different applications and blocking others
  • Planned and implemented Subnetting, VLSM to conserve IP addresses
  • Configured STP for loop prevention and VTP for Inter-VLAN Routing
  • Performed troubleshooting of connectivity problems using PING, and Trace route
  • Provided Technical support for improvement, up gradation, and expansion of the existing network architecture
  • Done troubleshooting of TCP/IP problems and connectivity issues in multi-protocol Ethernet environment.
  • IOS upgradation 1900, 2900, 3500 series Cisco Catalyst switches and 2500, 2600, 3600 series Cisco routers using TFTP

Environment: Cisco Routers (7600, 7200, 3800, 3700, 2800), Cisco catalyst Switches (6500, 4500, 3500, 2900), Routing Protocols (EIGRP, OSPF, BGP), Sniffing tools (Packet Sniffer, Wireshark, SNORT Syslog Server).

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