SUMMARY

• Network Engineer with 6+ years of experience in network design, implementation, troubleshooting and managing of large - scale enterprise networks.
• Comprehensive expertise in the implementation of analysis, optimization, troubleshooting and documentation of LAN/WAN networking systems.
• Installing and Configuring Cisco switches 2960, 3560, 3850, 4500, 4900, 6500, Nexus 5000, Nexus 7000, 7700 series with F & M series Line cards and also on Sup1,2 & 2E.
• Experience working with 2600, 2900, 3600, 3900, 7200, 7600 series Routers.
• Upgraded code on Cisco IOS & also on Nexus NX-OS.
• Expertise in Configuration of Virtual Local Area Networks (VLANS) using Cisco routers and multi-layer Switches and supporting STP, RSTP, PVST, RPVST along with trouble shooting of inter-VLAN routing and VLAN trunking using 802.1Q.
• Very good knowledge about internet protocols like IPv4 and IPv6.
• Good understanding and hands on experience configuring AAA-authentication, authorization, accounting, and configuring IP Access Control Lists.
• Strong knowledge of TACACS+, RADIUS implementation in Access Control Network.
• Experience in installing and troubleshooting of WAN technologies like T1/T3, DS3, STM1, OC3, Gigabit and STM4 circuit types.
• Experience in working with multiple vendor devices like Cisco, Juniper.
• Performed Network analysis with packet capturing tools Wire-shark etc. and worked on Solarwinds Monitoring tool.
• Experience on working with F5 load balancers.
• Extensive hands-on experience with complex routed LAN and WAN networks. Experience of routing protocols like EIGRP, OSPF, RIP, and BGP, MPLS/VPN.
• Good knowledge and experience in Installation, Configuration and Administration of Windows Servers 2000/2003, Active Directory, FTP, DNS, DHCP, TFTP, Linux OS under various LAN and WAN environments.
• Experience with Project documentation tools, implementing and maintaining network monitoring systems and experience with developing network design documentation and presentations using VISIO.
• Proficient with TCP/IP and relative OSI models, Extensively worked on Linux environment.
• Experience in maintenance and troubleshooting of connectivity problems using PING, Traceroute.
• Experience with packet tracing/sniffing on 802.3 and 802.11 networks.
• Decent knowledge in configuring and troubleshooting Cisco Wireless Networks: LWAPP, WLC, WCS, cisco prime infrastructure, Cisco Meraki, Standalone APs, Roaming, Wireless Security Basics, IEEE 802.11 a/b/g/n/ac, RF spectrum characteristics.
• Automated network implementations and tasks and designed monitoring tools using python scripting.
• Experience in interpreted languages like python and Perl.
• Security policy configuration including NAT, PAT, VPN, SSL-VPN, Route-maps and Access Control Lists, checkpoint and Cisco ASA.
• Strong practical experience in IP addressing, Sub-netting, VLSM and ARP, proxy ARP, and ping concepts.
• Expertise in troubleshooting and configuring DNS, DHCP, TFTP, TELNET, SSH, FTP, PING and NFS.
• Excellent Verbal, written communication skills and Interpersonal skills with ability to work with large teams as well as independently with minimum supervision & Team Player.

TECHNICAL SKILLS

Routing: RIPV1, RIPV2, IGRP, EGIRP, OSPF, BGP, IS-IS, Route, Filtering, Redistribution, Summarization and Static Routing

Switching: VLANs, VTP, STP, PVST+, RPVST+, Inter VLAN routing Multi-Layer Switch, Ether channels, Transparent Bridging, CEFDECF, Port Security, VSS on 6500 & 4500 catalyst switches.

Routers: Cisco 7600, 7606, 7609, 7613, 7200, 4400, 3900, 3800, 29001900.

Switches: Cisco Catalyst 6500, 4500, 3560, 3750, 2960, Nexus 9k/7k/5k/2k.

WAN Technologies: HDLC, Frame Relay, PPP, MPLS, DMVPN.

Network Management Tools: Wire shark, SNMP, Net cool, ARP, EM7, PRTG, Websense, Cisco NAC, ISE and Active Directory

Security: Checkpoint, Access Control Lists, ASA, VPN

Load Balancer: F5

Operating Systems: MS Windows XP/Vista/Windows 7/8/10, Server Linux, CISCO IOSApplications: MS Office, MS Visio

PROFESSIONAL EXPERIENCE

Confidential, San Jose, CA

Sr. Network Engineer

Responsibilities:

• Worked for a Network Remediation Project.
• Configured Cisco2900, 3900, 4300 series routers upgraded IOS Images and installed respective licenses in all the routers.
• Configured Cisco Catalyst Switches 3560-CX, 2960-CX in LAN Campus.
• Configured Cisco Catalyst 4500-X for Core and Distribution purposes.
• Created and updated Visio diagrams for the same and stored in the Share file.
• Configured Cisco AP’s using WLAN controller.
• Hands on experience on configuring Cisco AiroNet 2700, 3700 series Access points in WLAN Controllers 5508, 8540.
• Hands on configuring Cisco ASA 5505 FW, Zoom FW in the Network Remediation Project.
• Implemented QOS to conform the ACA standard.
• Strong hands on Network Circuit WAN upgrades, MPLS Circuit upgrades.
• Worked with ISP providers for Circuit upgrades for LAN Campuses.
• Hands on Cisco Cube Experience and VOIP Infrastructure.
• Brought up sites replacing old routers, switches with new routers.
• Also replaced EOL and EOS routers and switches in the firm.
• Created and implemented DUO VPN for dual authentication for Cisco any connect. For the same created VPN tunnels.
• Hands on experience on various tickets involving Network issues.
• Strong hands Network Monitoring tool Solar winds to monitor, control and mitigate the Network.
• Active On-call Manager for Network issues in the firm.
• Configure, Monitor and Troubleshoot Cisco WAAS devices 0E294, OE594, OE694 (data center).
• Installed Security licenses for Cisco Firepower FP4110 NGFW appliances.

Environment: Cisco ISR 4451, ISR4331, Cisco Catalyst switches, Cisco AP’s 2700, 3700, LAN Controller, ASA 5585, Solar winds, VPN, AAA-Radius, Tac-acs, ACS, SNMP, Infoblox, DNS, DHCP, OE294,OE594,OE694

Confidential, Detroit MI

Network Engineer

Responsibilities:

• Designing, Installation and configuration on Checkpoint, ASA, Net Screen and Juniper Firewalls.
• Secure calls using standardized protocols (such as Secure Real-time Transport Protocol).
• Experience in operational support, troubleshooting on an enterprisenetworkand possess data capture skills in Cisco CSS,CitrixNetScaler10.x devices.
• Installed high availability Big IPF5LTM and GTM load balancers to provide uninterrupted service to customers.
• Developing and maintain network configuration, documentation, industry best standards and practices.
• Configuring & managing around 500+ Network &Security Devices that includes Cisco Routers & Switches, Nexus Switches, Juniper and Palo Alto Firewalls, F5 Big IP Load balancers, Bluecoat Proxies and Riverbed WAN Optimizers.
• Familiarity with Security Technical Implementation Guides (STIGS).
• Used open stack to simulate the test case to test virtual machines.
• Experience in backing up routers and specifies commands to routers/switches using python script
• Designing, Installation and configuration of firewall Filters on Cisco and Juniper Routers.
• Troubleshooting MPLS circuits, VPN and SSL VPN connectivity.
• Designing, Installation and configuration of MPLS circuits, VPN and SSL VPN connections on checkpoint Firewalls, Juniper & NetScreen VPN Boxes.
• Configuring IPsec VPN connections, encryption algorithms & VPN domains on checkpoint R75.
• Working Troubleshooting with the TCP dumps and wire shark.
• Configuring, troubleshooting and managing secure web content gateways and filters like Blue Coat and Websense.
• Working on Active Directory to add users to new groups and change user's policies.
• Working on RSA 2 Factor, AAA & Radius. Working on IPS and IDS (source fire and fire eye).
• Working on tools and devices Aruba & CADA to assign roles, policies to devices and users.
• Configuring and deploying Cisco NAC & Cisco ISE.
• Working on Cisco NAC & ISE to authorize users based on protocols PEAP and EAP-TLS, also manage and monitor user's access privileges.

Environment: EIGRP, RIP, OSPF, BGP, VPN, CSM, SUP720, Ether Channels, Cisco 7200/3845/3600/2800 routers, Fluke and Sniffer, Cisco 6509/ 3750/3550/3500/2950 switches, Checkpoint firewalls (SPLAT).

Confidential

Jr. Network Engineer

Responsibilities:

• Responsible for design & management of juniper Netscreen firewalls, juniper switches, cisco switches
• Configuration, Troubleshooting and Maintenance ofPalo altoFirewalls(160+firewalls) - PA200, PA2000 series, PA3000 series, PA4000 series and PA5000 series.
• ConfigureVPNtunnels between various vendor's hardware and software firewalls
• Configured Routing protocols such as OSPF and policy based routing.
• Configuring Cisco IOS AAA with TACACS+ andRADIUSand Local privilege authorization fallback
• Extensive experience in configuring and implementing OSPF, BGP and MP-BGP
• Planning and configuring the entire IP addressing plan for the clients'network.
• Implemented Positive Enforcement Model with the help ofPalo altoNetworks
• Manage project task to migrate from CiscoASAfirewallsto Check pointfirewalls
• Team member of Configuration ofCisco7206 router and Configuration of Catalyst switches.
• Supported on CiscoNexus 5000and Nexus7000 SeriesSwitch fabric links.
• Implemented new ultra-secure networks in multiple data centers that included Cisco 6500 junipersecurity devices, and F5 Big IP's
• Innovated with support of Palo Alto for remote and mobile users and for analyzing files for malware in a separate (cloud-based) process that does not impact stream processing.
• To secure configurations of load balancing in F5, SSL/VPN connections, Troubleshooting CISCO ASA firewalls, and related network security measures.
• Worked on Cisco Routers, Active /Passive Hubs, Switches.
• Involved in upgrades to the WAN network from existing 7200vxr with ASR 1004 and 3845/3945 routers.
• Involved in configuration ofJunipersecurity appliances SRX 220, SRX 240, SRX 550, NS 50, SSG 550M, SSG 520M.

Environment: ASA Firewall, Routing Protocols RIP, EIGRP, OSPF, Quality of service, Cisco catalyst SwitchesSpanning tree features, NAT, PAT, Access List, Bluecoat, Route Maps, Vlan Trunking, Layer 2/3switching

Confidential

Network Support Engineer

Responsibilities:

• Designing solutions for frozen requirements using Cisco Routers and Switches
• Configured EIGRP for Lab Environment.
• Configured Cisco Catalyst 6500, 4500, 3850, 3750, 2960 switches and Cisco 3600, 7200 &ASR1K & 9k Routers for an enterprisenetwork
• Configuring rules and maintainingPalo altofirewallsand analysis offirewalllogs using various tools
• Implemented ISL and 802.1Q for communicating through VTP.
• Deploying and decommission of VLANs on coreASR9K, Nexus 7K, 5K and its downstream devices.
• ConfiguredRADIUSserver.
• Implemented Zone Based Firewalling and Security Rules on thePalo altoFirewall
• Worked onCiscoLayer 2 switches (spanning tree, VLAN).
• WAN Infrastructure running OSPF & BGP as core routing protocol.
• Worked on Juniper J series j2330, M320 routers and EX 3200 switches.
• Negotiate VPN tunnels using IPSec encryption standards and also configured and implemented site-to-site VPN, Remote VPN
• Monitor performance of network and servers to identify potential problems and bottleneck.
• Performed RIP, OSPF, BGP EIGRP routing protocol administration.