SUMMARY

• Having 11 + years of relevant professional experience in designing, implementing and maintaining enterprise level data networks.
• Implementing IP addressing schemes, LAN/WAN protocols, IP Services, to meet network requirements in different environments.
• Experienced in installing, configuring and troubleshooting the network devices like Cisco catalyst (2900, 3500, 3700, and 6500 series), and Cisco routers (2800, 3600, 4400 and 7200).
• Hands on experience in troubleshooting and deploying of various IP Routing protocols such as EIGRP, RIP v1/2, OSPF & BGP.
• Experience in VLAN configuration with 802.1q, VTP, STP and RSTP (802.1W).
• Knowledge of Cisco PIX/ASA firewalls, IPS/IDS, F5 load balancers, AAA (TACACS+ & RADIUS).
• Experience in managing and securing remote access through designing and implementing various VPN technologies including IPSec, SSL, GRE, MPLS, frame relay. Implementation of NAT /PAT.
• Working knowledge of network monitoring/management tools such as Cisco Prime, Net flow, Wireshark, and TCP dump.
• Skilled professional with the proven ability to provide technical, analytical solutions, problem solving skills, self - motivated, team player attitude, ability to learn and contribute.

TECHNICAL SKILLS

Routers: Cisco 2600, 2800, 3600, 4400, 7200 Series

Switches: Cisco 2900, 3500, 3700, 5000, 6500 Catalyst Series Cisco 7000, 5000, 2000 Nexus Series

Firewalls/Load Balancers: ASA Firewalls, F5 BIG-IP LTM

Routing Protocols: BGPv4, OSPF, EIGRP, VRRP, HSRP, GLBP

Switching Protocols: STP, RSTP, PVSTP, VTP, ARP

IP Services: DHCP, DNS, FTP, TFTP, SMTP

WAN technologies: ATM, ISDN, PPP, MPLS

Networking Technologies: IPSec, GRE, NAT/PAT, ACL, IPv6, Ether-Channel, VLANs, IP SLAs

PROFESSIONAL EXPERIENCE

Network Engineer

Confidential, Chicago

Responsibilities:

• Involved in configuring and implementing of composite network models consists of Cisco7600, 7200, 3800 series routers and Cisco 2950, 3500, 5000, 6500 Series switches.
• Configured networks using routing protocols such as RIPv2, OSPF and BGP.
• Maintained and managed networks running OSPF and BGP routing protocols.
• Configured route redistribution between OSPF and EIGRP in a multi-area OSPF network.
• Implemented Hot Standby Router Protocol (HSRP) by tuning parameters like preemption.
• Implemented various OSPF scenarios on networks consisting of 7600 routers.
• Tuned BGP internal and external peers with manipulation of attributes such as weight, local preference.
• Actively involved in installation, configuration, post installation daily operational tasks and configuration of the deployment of Cisco Nexus 5K equipment.
• Deploying VoIP phones and providing access to voice and data traffic with QoS policies.
• Preformed IOS upgrades and reconfigured devices afterwards.
• Daily monitoring of network traffic using sniffers (Wireshark) and access logs to troubleshoot and identify network issues.
• Worked with vendors and Engineering team to test new hardware and procedures.
• Consulted with engineering team to resolve tickets and troubleshoot L3/L2 problems efficiently.

Network Engineer

Confidential, Chicago

Responsibilities:

• Designed configured and implemented BGP, EIGRP, OSPF and RIP v2 in multi-protocol network environment.
• Involved in complete LAN, WAN development including IP address planning, designing, installation, configuration, testing, and maintenance.
• Built LAN/ WAN TCP/IP network comprised of Cisco switches (6500, 7000, 3750, 3500, and 2900).
• Hands on experience on subnetting and VLSM, STP, VTP, VLAN trucking.
• Performed switching technology administration including VLANs, inter-VLAN routing, trucking, port aggregation & link negotiation.
• Installed and configured DHCP server. Involved in troubleshooting of DHCP and other IP conflict problems.
• Configured VPN, ACL, and NAT in the Cisco ASA firewall to allow only authorized users to access the servers of the internal network.
• Troubleshooting on all cisco IOS and catalyst switches on the network which included but was not limited to 3700, 7200 and 7500 series routers and catalyst 6513 and 6509 switches.
• Involved in troubleshooting various layer 2 and layer 3 issues related to multicasting, VRF and BGP routing using Wireshark.
• Worked with F5 load balancers and their implementation in various networks.
• Created domain services, users and groups using admin console.
• Used network monitoring tools to ensure network connectivity and protocol analysis tools to assess and pinpoint networking issues causing service disruption.
• Developed an optimum network diagrams, VLAN table and physical identification in MS Visio.

Network Engineer

Confidential

Responsibilities:

• Experienced with cisco 2600/2900 series router and cisco 2900/3600 series switches.
• Experienced in design, configuration, implementation and maintenance of cisco wireless network, wireless LAN controllers.
• Configured ACL to allow only authorized users to access the servers.
• Preformed installation, cabling and cable testing.
• Setup Access list and configured Firewall.
• Involved in network upgrades and implementation.
• Configured and implemented site-to-site VPNs Confidential branch sites.
• Configured routing protocols: single-area OSPF in branch office network connectivity
• Implemented VLANs, DHCP server, DNS configuration, NAT/PAT in a small network environment.
• Reviewed, approved, procured various IT hardware and software products to fulfill strategic and operational needs of various departments.
• Documented and maintained technical diagrams, inventory list and physical topology, and other IT procedures.
• Responsible for day to day management of cisco devices, traffic management and monitoring.
• Analyze, troubleshoot and resolve network (layer 3) related issues for the clients by global support ticketing system; recommended and implemented enhancements in the system which reduced ticketing request by 50%.
• Worked on open source content management platform like Drupal, empowering enterprise websites and applications.
• Performed system backups, governance, testing and documentation.

Network Engineer

Confidential

Responsibilities:

• Experienced in design, configuration, implementation and maintenance of cisco wireless network, wireless LAN controllers.
• Configured ACL to allow only authorized users to access the servers.
• Preformed installation, cabling and cable testing.
• Setup Access list and configured Firewall.
• Involved in network upgrades and implementation.
• Configured and implemented site-to-site VPNs Confidential branch sites.
• Configured routing protocols: single-area OSPF in branch office network connectivity
• Implemented VLANs, DHCP server, DNS configuration, NAT/PAT in a small network environment.
• Reviewed, approved, procured various IT hardware and software products to fulfill strategic and operational needs of various departments.
• Documented and maintained technical diagrams, inventory list and physical topology, and other IT procedures.
• Responsible for day to day management of cisco devices, traffic management and monitoring.
• Analyze, troubleshoot and resolve network (layer 3) related issues for the clients by global support ticketing system; recommended and implemented enhancements in the system which reduced ticketing request by 50%.