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Senior Network Engineer. Resume

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New York, Ny

PROFESSIONAL SUMMARY:

  • 10+ Years of experience as a Network Engineer.
  • Thorough understanding of networking concepts pertaining to LAN, WAN protocols, Networking devices administration and maintenance.
  • Hands on experience in migrating the network infrastructure to Amazon,Google,Azure cloud technologies and adding firewall rules in the cloud architechure.
  • Hands on experience on Cisco 7200vxr, 7300, 4000, 3800, 2800, 2600 series routers and Cat 6500, 5000, 4000, 3750, 3560, 3500xl, 2950 series switches.
  • Expert in routing protocols RIP V1,V2, EIGRP, OSPF (Single Area and Multi Area) and BGP.
  • Experience in implementation, support and trouble shooting of VLAN’s including operational knowledge of spanning tree protocol STP, RSTP+, VLAN trunking, VTP, inter VLAN routing and ISL/802.1q.
  • Experience in providing Gateway redundancy by using High Availability protocols such as HSRP, VRRP and GLBP and by providing redundant paths in an architectural view of entire topology.
  • Hands on experience in planning and designing of IP addressing structure, sub - netting, VLSM.
  • Configuring and Troubleshooting NetScreenJuniper firewalls 5GT, 208, SSG 5, 140, 550, 550M, SRX 240,650,3600 and high end firewalls like ISG 1000, NS 5200 using NSM and Fortinet FG/FWF 60D,60C ;FG 200D firewalls via Fortimanager.
  • Configuring and troubleshooting Cisco,Juniper,PaloAlto,Fortinet Firewalls including UTM features like anti-virus, deep inspection (IDP), URL filtering and screening.
  • Configuring and trouble shootingCitrix Netscaler load balancers MPX 8000,14000,17550andAruba 3200,7220wireless Controllers
  • Working knowledge on different ticketing system tools (Remedy, Wiki,Servicenow,JIRA).
  • Strong interpersonal, organizational communication, customer service & presentation skills.
  • Excellent analytical skills, with the critical ability to identify security issues and quickly apply effective resolutions.
  • An effective communicator with exceptional interpersonal skills and experienced in training and mentoring technical team personnel during various phases of project and customer relationship management skills.

TECHNICAL SKILLS:

Protocols: RIP, RIP V2, EIGRP, OSPF, IS-IS, BGP, IGRP, HSRP, VRRP, GLBP, LACPPAGP, DNS, SMTP, SNMP, FTP, WLAN, 802.11/802.11 e, WEPPOP3, LADP, Juniper radius

Cloud technology: Amazon,Google,Azure.

LAN technologies: VLAN, Trunking, VTP, STP, MST, RSTP,PortMirroring,Etherchannel (PAGP & LACP, load balancing), Optimizing STP (Portfast, Uplink fast, Backbone fast, Root Guard, BPDU Guard), 802.1Q-in-Q, Tunneling, WiFi (802.11a/b/g/n)

WAN Technologies: Frame Relay, ISDN, PPP, HDLC, ATM, MPLS, Leased Lines, Cable modem,SONET, DWDM, DS1, DS3, T1, T3, OC3, OC12, OC48, OC 192.

Network Products: CISCO Routers 1700, 1800, 2500, 2600, 2800, 2851,3600, 3800, 7200. CISCO Switches 1900, 2950, 2950, 2960G. CISCO Campus Switches 550XL, 4948 Core Catalyst 4503, 4507 RE, Catalyst, 6500/6503/6507, Cisco PIX 500 series, Cisco ASA 5500/5520 series, Juniper Routers, MX240,QFXseries Juniper EX 4200,4300,4500,4550 seriesCitrix Netscaler Load balancers MPX 8000,14000,17550,Aruba wireless Controllers -3200,7220.

Network Management Tools: Whatsupgold, MRTG, HP Openview, Cisco WAN Manager, Cisco works 2000, solar winds

Monitoring Tools: Wireshark, NETBrain, OP5,SolarWinds,HP’sNNM,Net MRI

Authentication: RADIUS,TACACS+,Digital Certificates

Firewalls: Juniper (Netscreen&junos),Fortinet,Cisco ASA/PIX,Palo Alto.

Servers: Domain Servers, DNS Servers, WINS Servers, Mail Servers, Proxy servers, Print Servers, Application Servers, FTP Servers

Remote Access: IP Sec VPN, VPN, Remote/Secure client, Site to site VPN, tunneling

Anti-Virus Management: McAfee ePO server centralized management.

PROFESSIONAL EXPERIENCE:

Confidential, New York, NY.

Senior Network Engineer.

Responsibilities:

  • Built the new office in NY using Juniper switches EX 4300,EX 4500 and Juniper routers MX240,Aruba wireless controllers,Fortinet firewalls, Citrix Netscaler loadbalancers.
  • Designed and implemented an IP addressing scheme with subnets for the new office in NY by implementing Subnetting/VLSM.
  • Built tunnels between various NYT sites using the Amazon,Google,Azure cloud technologies along with building various instances in the cloud inorder to migrate the network infrastructure to cloud technology.
  • Managed/lead the team and migrated/integrated the existing datacenter networks to cloud by building data centers and IPsec tunnels between them using the Amazon’s VPC, EC2, RDS AWS products, Google and Microsoft Azure cloud.
  • Added network ACL rules on Amazon VPC and configured VPC peering.
  • Configured/managed and added rules on Fortinet FG/FWF 60D,60C,90D,100D,500D ;FG 200D firewalls using CLI and via Fortimanager
  • VM64 and Juniper 650,3600 firewallsalong with upgrading the downgrading the code.
  • Built/managed Aruba 3200,7220wireless Controllers along with Aruba Airwave server.
  • Managed Citrix Netscaler load balancers MPX 8000,14000,17550.
  • Worked on an oncall 24/7 weekly rotation shift as a primary engineer for escalation for all network related issues, by acknowledging all the pages received on PagerDuty application.
  • Familiar with designing, configuration/installation/troubleshooting of Juniper MX240,QFX series routers and 4200,4300,4500,4550 switches.
  • Proficient in working with Juniper’s VGW and VMWare’s NSX firewalls.
  • Managed the network performance and traffic flow using Riverbed.
  • Configuration and troubleshooting of OSPF, BGP routing protocols.
  • Configured aggregated ether channels using LACP, trunks, VLans, VRRP in a LAN environment.
  • Proactively manage/upgrade/trouble shoot Juniperrouters,switches firewalls, Cisco,Fortinet Firewalls, Aruba wireless controllers via CLI,GUI and Citrix Netscaler load balancers .
  • Respond to inbound requests via phone, via JIRA ticketing tool for technical assistance with managed services in a timely manner within documented SLA.
  • Monitoring the firewalls/routers/switches by building the Solarwindstool and its Modules like Network Mapper/IPAM/NPM/NCM/Syslog
  • Managing ip address allocation via Infoblox and SolarWinds IPAM, DNS, DHCP.
  • Assist the internal IT group in maintaining, supporting, building and troubleshooting the managed services network and security environment. Working knowledge on Phyton/PERL scripting and on Forescout.
  • Working with change management team on change controls for network maintenance/repair activities during network impacting events and keeping executive management team abreast of progress and customer impact.
  • Manage outage bridges and repair activities during service impacting events and network outages.
  • Participated in network team building process by interviewing network resources and selecting an ideal candidate for the team.

Environment: Firewalls: Juniper SSG,SRX 3600 series and Cisco ASA 5500 series Fortinet FG/FWF 60D,60C ;FG 200D firewalls Juniper 650,3600 firewalls Routers: Juniper MX 240,QFX series and Switches: Juniper 4200,4300,4500,4550Load Balancers: Citrix Netscaler MPX 8000,14000,17550Cloud:Amazon,Google,Azure.

Confidential, Englewood Cliff, NJ.

Senior Network Engineer.

Responsibilities:

  • Worked as part of a team for Cisco Product Support. Troubleshooting by providing relevant knowledge base articles and other information. Installation and Configuration of LAN (Ethernet)/ WAN set up for Clients.
  • Designing, configuration/installation/troubleshooting of Cisco 3600,Nexus 7K, ASR 1K,9K routers and catalyst switches 6500, 3700.
  • Designed and implemented an IP addressing scheme with subnets for different departments.
  • Maintenance and Troubleshooting of connectivity problems using Ping, Trace route.
  • Planning and Implementation of Subnetting, VLSM to conserve IP addresses.
  • Configured STP for loop prevention and VTP for Inter-VLAN Routing.
  • Configuration and troubleshooting of EIGRP, OSPF, BGP routing protocols.
  • Configured static/dynamic NAT .
  • Supported various LAN environments consisting of Cisco 6500 series switches.
  • Configured ether channels, trunks, VLans, HSRP,VRRP/GLBP in a LAN environment.
  • Proactively manage/upgrade/trouble shoot customer’s Cisco routers,switches, Juniper, Palo Alto Firewalls via CLI,GUI .
  • Use strong TCP/IP networking skills to perform network troubleshooting to isolate and diagnose common network problems.
  • Respond to inbound requests via phone, via HP’s PPMC & Service now ticketing tool for technical assistance with managed services in a timely manner (within documented SLA) to support, threat and other cases
  • Respond to needs and questions of customers concerning their access to network resources through their managed device including the VPN issues.
  • Monitoring the firewalls/routers/switches usingOpen View, Net MRI, Network authority, Net QOS, Site scope, Concord health and HP’s Network Node manager.
  • Adhere to policies, procedures, and security practices.
  • Managing ip address allocation via infoblox, DNS, DHCP.
  • Upgrading and downgrading various switches,routers,firewalls.
  • Interface with onsite clients to understand the quality aspects and expectations, as needed.
  • Collaborate effectively with local team members and offshore staff to create best practice processes.
  • Resolve problems independently and understand escalation procedure.
  • Oversee continuous process improvement: documenting that the processes are effective.
  • Take the lead on communicating process improvements to the management team.
  • Configuring site-to-site VPN tunnels using Cisco/Juniper firewalls.
  • Maintained the network using Net Brain tool.
  • Assist the internal IT group in maintaining, supporting, building and troubleshooting the managed services network and security environment.

Environment: Firewalls: Juniper SSG,SRX 3600 series and Cisco ASA 5500 series and PIX 515E,525 series and Palo Alto 7000,5000, 3000 series Routers: 3600,Nexus 7K, ASR 1K,9K and Switches: 6500, and 3700.

Confidential, ForthWorth, Tx

Network Security Engineer.

Responsibilities:

  • Proactively manage customer Firewall’s (FW), Intrusion Detection Systems (IDS), Intrusion Prevention Systems (IPS) and other security threat data sources .
  • Configuring, managing, and upgrading FW, IDS, IVS, IPS, NAC, Encryption and a wide variety of other security products/appliances .
  • Using strong TCP/IP networking skills to perform network troubleshooting to isolate and diagnose common network problems .
  • Responding to inbound requests via phone and other electronic means for technical assistance with managed services in a timely manner (within documented SLA) to support, threat and other cases Respond to needs and questions of customers concerning their access to network resources through their managed device.
  • Adhere to policies, procedures, and security practices.
  • Resolving problems independently and understand escalation procedure.
  • Collaborate effectively with local team members and offshore staff to create best practice processes .
  • Overseeing continuous process improvement: documenting that the processes are effective.
  • Taking the lead on communicating process improvements to the management team .
  • Assisting the internal IT group in maintaining, supporting, building and troubleshooting the managed services network and security environment.
  • Adding Policies to the SRX 3600, 240, ISG firewalls and monitoring the logs.
  • Implementation, configuration of Juniper VPN tunnel between the two locations.
  • Changing the Pre-shared key authentication to Digital Certificate authentication on the SRX 240 firewalls.
  • Configuring and troubleshooting Juniper Firewalls including UTM features like anti-virus, deep inspection (IDP), URL filtering and screening.
  • Aware of network analyzing tools like tcpdump, WireShark, Ethereal, 3CDaemon, SecureCRT, Nmap, for monitoring STRM( Security threat Response Manager), NSM (Network Security Manager) for Juniper firewalls
  • Implementation, administration: Designing / Configuration changes, Defining events/signatures policies and its actions, Logging and Log analysis.

Environment: Juniper firewallsSRX 240,3600 and high end firewalls like ISG 1000, NS 5200, UTM features, network analyzing tools liketcpdump, wireshark, Nmap, secureCRT, SSL.

Confidential, Sunnyvale, California

Network Engineer

Responsibilities:

  • Tested various EBGP attributes such as Local preference, AS-PATH and extended communities.
  • Product testing and support for Access layer switches such as Cisco 4510, 4948, 4507, distribution layer switches such as 6513, 6509, 6504 and a routed core.
  • Implemented L3 Switching: CEF, MLS, Ether channel in the network.
  • Configuring and troubleshooting BGP, EIGRP, OSPF and RIP routing protocols for enterprise network on Cisco 6513, 4507 routers.
  • Tested and upgraded various IOS releases for various Cisco routers.
  • Implementation of the LAN IP infrastructure using L2 / L3 switching, VLAN, VTP, Inter VLAN Routing, Spanning tree, Switch ports (access and trunks) Gigabit Ethernet and truncking .
  • Worked on issues related to customer access-lists.
  • Configured TACACS and AAA for various routers and switches.
  • Replicating customer specific scenarios in lab for troubleshooting purpose and reproducing the problems in the lab
  • Active monitoring and LAN/WAN support
  • Established interactive communication with the end users to understand their day-to-day problems and subsequently provide satisfactory solution in time.
  • Provide a daily / weekly / monthly quality score to each agent to improvise the performance.

Environment: Routers: Cisco 6513, 4507 and Switches: Cisco 4510, 4948, 4507, 6513 and 6509.

Confidential, Chicago,IL

Network Engineer

Responsibilities:

  • Configuring and managing Cisco 7204, 3825, 3945 routers and 3750 data and power stack switches in a 10/100/1000 multi VLAN distributed network.
  • Configuring VLAN's, defining ACL’s and assuring WAN availability and optimal throughput via the use of BGP, OSPF, and HSRP on6500, 3750, Nexus 5000, Nexus 7000 switches.
  • Utilizing Network Instruments Observer, Observer Infrastructure Enterprise, tcpdump, WireShark network monitoring tools.
  • Network systems planning and diagramming Visio for documentation.
  • Using a protocol analyzer to identify and resolve network issues, communication port identification, and network usage trends.
  • Experience with LAN hardware including patch panels, Fiber Optic, Cat5e and Cat 6 wiring.
  • Supporting and maintaining SSL VPN, VPN tunnel, and Cisco client remote access.
  • Interacting with telecom provider to report, troubleshoot, and install service upgrades.
  • Administrating F5Load Balancers like creating new pools and VIPS,adding/deleting/modifying load balancing rules.
  • Administration of firewalls like creating/modifying object groups, adding/deleting/modifying appropriate rules and Access Lists.
  • IP/DNS administration like adding/modifying/deleting IP and DNS assignments using Infoblox tool.
  • Documenting environment/configuration of the environment (e.g. topology) and specific devices - ensure inventory systems.

Environment: Routers: 7204, 3825, 3945,7200Switches:6500, 3750, Nexus 5000, Nexus 7000,Firewall and VPN:(PIX/ASA) (firewall and VPN) Load Balancer:(F5) IP/DNS:Infoblox.

Confidential, Newark,Delaware

Network Engineer

Responsibilities:

  • Configuration and Installation of Cisco routers 3600and catalyst switches 6500, 3700.
  • Designed and implemented an IP addressing scheme with subnets for different departments.
  • Maintaining and troubleshooting of connectivity problems using Ping, Trace route.
  • Planning and implementation of Subnetting, VLSM to conserve IP addresses.
  • Configured STP for loop prevention and VTP for Inter-VLAN Routing.
  • Configuration and troubleshooting of EIGRP, OSPF, BGPon Cisco1700, 2600, 3600, 7200 routers.
  • Configuration of Standard and Extended ACLs for Security.
  • Implementation of NAT with a pool of 2 public IP addresses.
  • Troubleshooting issues and outages on Trunks and Router interfaces extensively.
  • Configured VPN for the remote and site-to-site access.
  • Configured Access control list and also configured Cisco ACS for AAA services using Tacacs and Tacacs+.
  • Experience in network monitoring tools like Netflow and Cisco IPS event viewer.
  • Defined and maintained security policies on all Internet-facing edge routers used for delivery of streaming media content.
  • Implemented TCP/IP and related services like DHCP/DNS/WINS.
  • Documentation of entire site layout, updating and managing the asset registers and network or server documentations.

Environment: Routers: 1700,2600,3600, 7200 and Switches: 2900,3550,6500, and 3700.

Confidential

NOC Network Engineer

ROLES/RESPONSIBILITIES:

  • Part of a on call support group, provided basic troubleshooting help for internal customer issues
  • Configuration and maintenance of Cisco 1700, 2600 series routers with EIGRP routing protocol.
  • Provisioned and validated DNS record for customer domains.
  • Gained strong knowledge with hand-on experience of IP-subnetting for class A, B, and C networks.
  • Thorough understanding of network and security knowledge (TCP/IP, DNS/WINS, firewalls, routers & VPNs).
  • Responsible for implementation and day to day operations of all associated hubs, routers, switches & windows machines
  • Monitoring the network, troubleshooting network problems, implementing changes, communicating and working closely with vendors, customers & system administrators.

Environment: Routers:Cisco Routers:1700, 2600 series and Cisco Switches:2900, 3550 series.

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