ajesh kumar

An accomplished IT professional with up to 5 years of experience in network architecture, installation, implementation & administration in remote and Data Center environments. Good knowledge in key IT skills within the domain of Data Networks including planning, designing, installation & configuration of IT networks, maintenance & troubleshooting, and network management.

Switches  Cisco catalyst 2960,3650,3850,4500  Aruba Cx6100 and Hp procurve series  Arista 7280-CR48  Ruijjie and UBNT switches Routers  Cisco catalyst 1800,2000 series and ISR 4000 series Intertouch Quadriga ( Trivandrum, Kerala) Network and desktop support Engineer (June 2017-March 2019 Microsence Networks ( Cochin, Kerala) support Engineer (August 2016-June 2017 ) Hardware and Network /cctv technician Worked as Freelance technician (2014-2016) Firewalls  FortiGate :60E,D 100E,200E,201E,300D,300E,501E,1500D,VM-series  Palo Alto : PA-250,PA-500,PA-800,PA-3200 series-series  Checkpoint  SonicWALL NSA series  Hillstone  Sophos XG  Cisco ASA Network optimization and Load Balancer: Peplink,Riverbed Network Monitoring: SolarWinds Proxy : Trent micro interscan web security,Cisco umbrella Wireless devices and controllers:  Unify, Aruba, Ruckus, Cisco Meraki,Fortinet Wifi . Routing/switching/Network Security  Good knowledge and working experience in various kinds of networking technologies and protocols  OSI,TCP/IP, subnetting, ARP, Various NAT Technologies(static, dynamic, U-turn, SNAT, DNAT, Port forwarding)  Switching : VLAN, Trunks, EtherChannel and Link aggregation, VTP, SVI, STP, RSTP, PVST, MLAG, Redundancy protocols(VRRP),port security, firmware upgrade, Stack wise, QOS,SNMP,ACL  Good knowledge in routing protocols RIP, OSPF,BGP and static routing using distance and priority  Fair knowledge of network security principals and experience in configuring network security measures in network and firewall devices to prevent and mitigating network related threats and attacks.  Fair knowledge of MPLS, VRF, VRF Lite  Good knowledge in overlay protocols like VXLAN, GRE  Experience in SD-Wan technology (Velocloud SD-WAN)  Experience in WAN optimization (Riverbed, Fortinet, peplink)  Good knowledge in implementing and troubleshooting wireless infrastructure  Good knowledge and experience in configuring UTM security profiles such as Antivirus, web filtering, Application control, IPS, vulnerability protection, Antispyware, Zone/DOS protection profiles in Fortinet, Palo alto, Sophos and SonicWALL firewalls  Virtual server load balancing, wan smoothing, traffic shaping and QOS  VPN: IPSEC,SSL VPN,GRE,L2TP Workflow  ITIL V4,Service Now,OTRS Infrastructure Services  Installation of windows server 2008,2013, knowledge of active directory, configuration of DHCP server, Address Lease, Reservation and DNS server.  Installation of operating systems windows and Linux based.  Knowledge in virtualization technologies VMware workstation, ESXi Additional Technical skills  Learning Datacenter technologies Spine and leaf design, OTV, Fabric path, EVPN, Cisco Nexus switches and Arista switches.  Building and practicing Networks and technologies using virtual simulators (EVE-NG)  Azure cloud networking Certifications and technical courses competed  Cisco Certified Network Associate Certified CISCO ID: CSCO13144794-expired  CCNP Enterprise core technologies-course completed  CCNP ENCOR&ENARSI (learning)  Microsoft certified Solution expert (MCSE) course completed  FortiGate NSE level 1,2 and NSE4-certified  Palo alto Strata foundation and strata associate certifications  Palo alto cortex associate

Experience in Network platform and Managing Networking Devices in the IT Infra environment (Incident / problem determination and resolution on a 24x7 basis Incident, Service Request and queries within the agreed service levels).  Involved in a network Support project for a conglomerate with multiple entities spanned across various countries (Client:Sime Darby corporation , Project Owner : DXC Technology)  L2&L3 Support for all kind of network issues identify root cause, recommend solutions, and collaborate with internal team and external vendors related to Routing, Switching, Firewalls, Wireless Devices of multiple vendors  Assisting onsite engineers for new network implementations, Routers/switches/firewall and wireless devices configuration and setting up remote branch networks  Managing maintenance, hardware and firmware upgrades of network devices/work closely with network security/VAPT team and provide necessary remediations for network devices security  Monitoring/analyzing/configuring network infrastructure device in to monitoring tool, NetFlow, SNMP, Network configuration manager etc (SolarWinds network monitor)  Supported technical assistance center responding to customer network outages  Setting up and troubleshooting IPSEC/SSL/GRE VPN tunnels sites and remote user connectivity on multiple vendor devices  Experience in troubleshooting and fixing common misconfigurations as well as doing Root cause Analysis for any of the above technologies  Creation of network documentation from the existing infrastructure, planned infrastructure as well as updating existing documentation.  Addition of configuration, rules, vpn tunnels in Fortigate,Palo alto,Sophos,Hillstone and Cisco ASA firewalls  Worked for the project of migration of MPLS and VPN branches to SD-WAN (By VeloCloud), Assisting for edge device configuration, provisioning, advertising networks, managing Edges from orchestrator