SUMMARY

• Seeking assignments in Network Engineer which will encourage me to work diplomatically towards the Continuous growth of the company and to continue practices to upgrade the knowledge.
• A dynamic professional with total 14+ years of comprehensive experience in end - to-end IT Infrastructure and Network Engineer (LAN & WAN)
• Gained experience in Network Systems includes Cisco, TCP/IP & related Protocols Routers, Switches, Routing
• Concepts and multiple different vendor’s devices and concepts.
• Configuration, installation and troubleshooting of Cisco routers and switches, Layer-2, Layer-3
• Excellent knowledge in IPv4 Address
• Planning & designing IP address, Sub Netting & VLSM
• Implementation of Routing protocols (RIP, IGRP, OSPF, EIGRP and BGP)
• EIGRP and OSPF LAN Network Infrastructure, VRF (Virtual Routing Forwarding), BFD
• Experience in Large Campus LAN/WAN
• Redistribution, Route Map, Prefix List
• Experience in setting up and maintenance of Security policies in Palo Alto Firewalls.
• ACL (Standard and Extended Access list), NAT (Network Address Translation) and PAT
• VPN Technology: IPsec and GRE
• Hands-on experience with Cisco enterprise wireless networking and design
• Troubleshoot connectivity issues using Aruba ClearPass, SolarWinds NPM/NCM and other technical resources as required
• Good knowledge in SD WAN Technology
• Experience with Change management process and Project documentation tools like MS Excel and MS VISIO.
• Switching Technology: Port Security
• Experience with Aruba and Cisco Wireless LAN controller Worked on integration of WLAN with RADIUS servers like ISE and ClearPass. Worked on configuring AP profiles, SSID, Authentication roles, RF parameters on WLAN controllers, Experience with Master, local controllers, Anchor controllers, Instant AP, Remote access points.
• Switching Technologies: PPP, HDLC, IP, TCP, ARP, STP, RSTP, VTP, VLAN,
• Switching Technologies: HSRP, VRRP & GLBP and Port channel
• Having a basic knowledge in Windows and Ubuntu Server
• Understanding of network applications and protocols like SSH, DNS, SMTP, etc.,
• Strong technical troubleshooting skills for both system performance and network connectivity issues
• Good Knowledge of network support tools such as Spectrum and Nagios
• Good Knowledge in Nagios for setup. Adding a device in the Group and Other Changes
• Troubleshooting Networking Protocol TCP/IP, ICMP & ARP
• Ability to explain technical issues clearly too non-technical colleagues Both independent and team orientation, depending on situation Always ready for the unexpected.
• Managing network asset inventory through the useful lifecycle of each asset

PROFESSIONAL EXPERIENCE

Confidential, Rhode Island

Sr. Network Engineer

Responsibilities:

• Responsible for troubleshooting and resolving network issues using an end-to-end approach engaging relevant vendor and application teams where necessary
• Proactively identify and take ownership of issues, which have the potential to impact service
• To develop strong relationships with the Global Network Operation Center (GNOC) technical teams and colleagues
• To carry out technical root cause analysis and provide suggestions for mitigation
• To have a full understanding of the Momentive change process and risk appetite to ensure stability of the network is maintained
• Upgrading Wireless LAN controllers which are end of life with the new models and also the IOS versions to the current latest versions.
• 802.1x (EAP-PEAP, EAP-TLS, Supplicant config, Server trust, wired/wireless differences) Network Device AAA
• Handled load balancing using cisco ACE and F5 Network Load Balancers (both LTM and GTM).
• To keep the network designed with recommended best practices
• Configuration scenarios include routing (RIP, EIGRP, OSPF, BGP), bridging (STP, VLAN, HSRP), MPLS VPN, Network Security (VPN, Firewall, IDS).
• Visited sites to perform wireless survey to configure Meraki Wireless Access Points MR42 and MR45.
• Configuration and maintenance of routers, firewalls and load-balancers.
• Configured IP RIP, PPP, BGP and OSPF routing.
• Configure and rework Radius, AAA, DSN, VTY Access list, etc. on all network equipment.
• Involved in Configuration of Access lists (ACL) on Cisco ASA firewall for the proper network routing for the B2B network connectivity.
• Ensuring problems are satisfactory resolved in a timely manner with focus in providing high level of support for internal customers to meet SLA.
• Perform extensive packet capture analysis using Wireshark to determine root cause
• Worked on conversions to BGP WAN routing, which had to be converted to WAN routing from OSPF to BGP (OSPF is used for local routing only) that involved new wan links.
• Deployed Nexus switches 2248, 5548, 7018 and implemented features like FEX Links, VPC, VRF, VDC, and OTV, Fabric Path.
• Hands-on experience in configuration of firewalls - PaloAlto, Cisco, Fortinet.
• Checkpoint, Cisco ASA, Fortinet and Palo Alto installation, upgrade, Monitoring and patch management.
• Utilized Solarwinds Orion to monitor various components of the Network and send email / text alerts to members of the Network team.
• Migrated with a team from a predominantly Checkpoint environment to a Palo Alto global solution.
• Maintained, installed and Configured SD-WAN equipment's such as Fortinet firewalls
• Proficient in handling network devices in SD- WAN using Viptela
• Created Python scripts to make API calls to various tools like Infoblox, OpenNMS, BNA and ITSM
• Implemented SNMP on Cisco routes to allow for network management.
• Worked extensively in Configuring, Monitoring and Troubleshooting LAN Core Switching technologies (Platform redundancy, VLANs).
• Experience on Ruckus Wireless R320, R510, R550, T310, T750 and E510 indoor and outdoor access points.
• Experience in working Meraki MR 32, 33, 36,42, 45, 46, 52, 53, 56 series wireless access points.
• Working knowledge with monitoring tools like Solar Winds& network packet capture tools like Wire-shark
• Designed and implemented Aruba zero touch security for SD-Branch.
• Configured and maintained Cisco Catalyst Switches 6500, 4500, 3500, 2900 series, Cisco Nexus Switches 9K/5K.
• Configuring, testing, troubleshooting multiple vendor device platforms like Cisco routing and switching: Cisco ASR9010, ASR901, ASR903 - (IOS-XR), Catalyst Cisco 7609, 2960, and Juniper routing and switching devices: MX960, MX 480.
• Working heavily in BGP configurations on Cisco ASR9k (IOS-XR) and Juniper MX-960 routers.
• Development of Ping sweep Python
• Script for quickly testing working IP addresses in a given network.
• Configuration 7500, 7200 with OSPF and catalyst 6505, 4500, 3550 switches with various VLAN.
• Worked with Cisco Layer 3 switches 3750, 4500, 6500; Cisco Nexus 2248, 5548, 6001 and 9332 in multi VLAN environment with the use of inter-VLAN routing, 802.1Q trunk, ether channel.
• Configuration and troubleshooting of Cisco catalyst 6509, 7613 with supervisor cards.
• Experience with configuring Nexus 2000 Fabric Extender (FEX) which acts as a remote line card (module) for the Nexus 5000.
• Created dedicated VLANs for Voice and Data with QoS for Prioritizing VOICE and DATA.
• Responsible for the configuration of Cisco Routers (7000, 5300, 4000, 2500, 3000, 2600) using RIP, IGRP, OSPF, EIGRP, BGP

Confidential, Itasca IL

Sr. Network Engineer

Responsibilities:

• Access Switch, Distribution Switch, and Core Device are migrating
• Interacting with the Client for getting information for the Migration Windows
• Before activity start, taking pre-check all show commands as per standards.
• Taking the Backup of legacy Device Check the Configuration and Add any necessary details if required and update in the document
• Adding nodes, pools and virtual servers via f5 load balancers.
• Updating the Design as per the standard
• Configuration based on using OSPF, EIGRP, BGP and HSRP.
• Configuring VPN IPsec, GRE and DMVPN
• Image Upgrades on the Network Device.
• Maintain the district's wireless networks, specializing in Aerohive (WLAN) and Ubiquity (WP2P) wireless network technology
• Assisted in day to day management of Solar Winds Orion Network Monitoring.
• Configured and deployed Aruba 9000 (SD-WAN) and 7200 series controllers depending on the architecture requirements.
• Checking the logs any error message pop, resolve the issues in the Window time.
• Responsible for providing L3 level support in networking area
• Designing WLAN Networks using Ekahau Site Survey and Understanding of wireless client authentication methods including 802.1x, EAP, RADIUS, LDAP, and Active Directory
• Successfully installed Palo Alto Next-Generation PA-3060, PA-5060 firewalls to protect Data Center with the use of IPS feature. Managed wireless users like guests and other groups in the controller models like cisco 8500 series, 5700 series etc.
• Managed successful migration of critical production and contingency servers with no impact to business
• Nagios is used to identify the Critical Alert in the Network Device and in during the maintenance activity
• Maintained and troubleshoot traffic flows in BGP using Standard and Extended Access-Lists, Distribute-list and Route Maps, MED and Local Preference to Load Balance traffic across multiple ISP links.
• Implementing LAN/WAN configurations on Cisco Nexus 5k, Catalyst 6500 switch.
• Maintained and troubleshoot data center and deployed Cisco Nexus and ASR and utilized BGP, EIGRP, VRF and IPsec tunnels to provide fully redundant services.
• Deliver best practices guidance for managing Palo Alto Networks firewalls.
• Installation, configuration and maintenance of Palo Alto Firewalls, Cisco ASA firewalls and DHCP, DNS, NTP, syslog.
• Configured and maintained IPSEC tunnels on Palo Alto Firewalls.
• Configuring and resolving various OSPF issues in an OSPF multi area environment.
• Configured and maintained Access layer switches such as Cisco 4510, 4948, 4507 switches.
• Configured Cisco ASA 5500 series firewall and remote access IPSEC VPN on Cisco ASA 5500 series.
• Experience configuring VPC, VDC and ISSU Software upgrades on Cisco Nexus 9332.
• Programming switches with appropriate PVID, VLAN, trunk ports, etc. for new network lines.
• VLAN configuration, Troubleshooting and Firewall ACLs and Object-Groups configuration and support.
• Develop network drawings and documentation utilizing Visio, Word, and Excel programs.
• Expert level work on; IP internetworking, LAN/Data Center Switching, WAN protocols - BGP, IGRP, EIGRP, and IP.
• Created Python scripts to make API calls to various tools like Infoblox, OpenNMS, BNA and ITSM
• Implemented SNMP on Cisco routes to allow for network management.
• Worked extensively in Configuring, Monitoring and Troubleshooting LAN Core Switching technologies (Platform redundancy, VLANs).

Confidential, California

Network Engineer

Responsibilities:

• Managing customer LAN/WAN networks in working environment under Task and Incident
• Handling severity 2, 3 and 4 issues and providing solutions within the agreed SLA
• Troubleshooting issues such as node and interface down, link down, link and interface intermittent packet drops, latency and network slowness
• Isolating the network issues by analyzing logs, routing protocol and interface status and configurations in Routers and Switches
• Configuring Cisco and Mikrotik Routers, Switches and Sangfor Firewall and documenting the configuration changes in trouble ticket
• Wireless LAN Controllers Cisco 8510, 5508, 5706
• Aggregation load balancing using Nexus 7018 switches.
• Keep network infrastructure up-to-date and secured
• Identify and recommend needed and optimal infrastructure improvement
• Experience to perform advanced troubleshooting of devices at layers 1, 2 & 3
• Experience to configure devices using both GUI and Command line tools
• Implementing and Configuring Nagios Core Monitoring Tools
• Contacting affected customer to get additional information to find out the exact issue, impact and getting downtime if required
• Experience with Meraki and Aerohive wireless access points.
• Experience with Migrations of Cisco ASA firewall to Palo Alto firewall.
• Experience with deployment of Palo Alto firewalls for different NAT, Skype traffic.
• Provided support to Help Desk for complex / major network problems.
• Proving support to End user one-on-one, If required
• Created dedicated VLANs for Voice and Data with QoS for Prioritizing VOICE and DATA.
• Responsible for the configuration of Cisco Routers (7000, 5300, 4000, 2500, 3000, 2600) using RIP, IGRP, OSPF, EIGRP, BGP Experience in Palo Alto firewalls PA250, PA4050, PA3020 using Panorama servers, performing changes to monitor/block/allow the traffic on the firewall.
• Automate Cisco network infrastructure using python scripts
• Experience with converting Cisco 6500 IOS to Cisco Nexus NX-OS in the data center environment.
• Redistribution of OSPF and EIGRP into BGP with the correct tagging parameters from the old legacy network to route and to utilize the correct MPLS VRF VPN’s provided from the bearers.
• Implemented, Configured BGP WAN routing, converting OSPF routes to BGP (OSPF in local routing).
• Expertise in maintenance of layer 2 switching tasks- VLAN, VTP, RSTP, configuration of Ether channel with LACP and PAGP along with troubleshooting of inter-VLAN routing.