Hari Sykam

• 8+ years of IT experience in design, development, implementation, troubleshooting and maintenance of complex Network & Security devices, Network Security, Linux Kernel Programming
• Expertise in network protocols & Network Security and Communication Network design
• Experience with Troubleshooting tools for example protocol analyzers, load generators & network traces Working knowledge of frame relay, MPLS services, OSPF, BGP and EIGRP routing protocols, NATing, sub-netting, also including DNS, WINS, LDAP, DHCP, http, HTML, HTTPS, TCP/IP, UDP, SNMP, OSPF, RIP, IPSEC, PPTP, VLAN, STP (Spanning tree Protocol), RTSP & Multicasting protocols Designing, Implementing and Troubleshooting Cisco 3750, 3550, 3560, 2924, 6509-V-E, 6513, 6504, 6503, 6506, 6500 series switches
• Well Experienced in configuring protocol HSRP, GLBP, VRRP, ICMP, IGMP, PPP, HDLC, PAP, CHAP, and SNMP
• In-depth Cisco technology experience/knowledge in design, implementation, administration, and support
• Advanced knowledge of OSI model, TCP/IP, Internet technologies, system security, firewall infrastructure, network architecture and Cisco network routing / switching (Layer 2 and 3) experience, including LAN and WAN, design and implementation which includes Layer 1 to Layer 7 Experience
• Designing, Implementing and Troubleshooting Cisco Routers (2800,2900,3900,3800,7600) using Static, RIP, IGRP, OSPF, EIGRP & experience with Cisco ASA, Cisco PIX & ASA devices Well experienced in configuring gateway redundancy protocols like HSRP, GLBP, PPP and SNMP
• Worked on Load Balancer F5 LTM, GTM series like 6400, 6800, 8800 for corporate applications and their availability
• Intermediate python programming skill and able to develop ansible scripts with netmiko /paramiko Created own local script with python to read replace required script based on input for each client for BAU Tasks

• Plan design implement, and support network systems of moderate complexity in commercial network environment
• Heavily worked on visa MPLS to deployed endpoint routers such as CISCO 2901 for MPLS connectivity between visa network and client remote location
• Involved migration of CISCO 2901 devices to CISCO ISR 4331 WAN routers
• Completely provided MOP for migration by analyzing traffic flow
• Implemented HSRP between client devices and Visa Routers to for processing transition in Tier-0 network area
• Implemented BGP to achieve connectivity between ISP & visa network such as AT&T, CenturyLink, Verizon, TWT
• Involved & performed troubleshooting critical network problems in BGP, OSPF & EIGRP entire VISA Network
• Worked in CISCO ASR 1000 to build IPSEC tunnels between Cyber Source and Visa Network
• Worked on third party data center like EQUINIX to deploy ISR 4331 for client connectivity with help of NCR
• Implemented routing protocols like OSPF, BGP & EIGRP on cisco network devices to achieve connectivity
• Worked on WAN network of VISA to troubleshoot P1 issues like carrier/ISP connectivity issues or issues like BGP flapping
• Provided network engineering support & deployment for Global Commercial Networks in Visa
• Migrated carrier facing backbone routers from ES Line card with ES+20 Line cards on cisco 7601 routers
• Developed standard migrating script for migration of Catalyst 6500 Series Virtual Switching Supervisor Engine 720 with 10GE up links to cisco Nexus 93180 switches

Responsibilities: Extensively worked on Nexus 9k migration

• Upgraded all Nexus devices to anthem approval code 7.0(3) NX-OS
• Worked in Implementing VDC, VPC, VSS, VRF on Nexus 5K,7K & 9K switches
• Providing daily network support for national wide area network consisting of MPLS, VPN and point-to point site
• Worked on commissioning and decommissioning of MPLS circuits for various field offices
• Providing daily network support for wide area network consisting of MPLS, VPN and point-to point site
• Maintaining SSL certificates for various applications hosted on F5s and servers on hardware