Kumar Mn Email & Phone Number

Bengaluru, Ka, In

Karnataka, India

Bengaluru, Karnataka, India

Bangalore Urban, Karnataka, India

o Working as a Technology manager and handling P1 issue, helping engineer for P2 and P3 issues o Administering and managing the network security infrastructure inclusive of over 2000+ devices all over the globe, comprising market leading Firewalls and Load Balancers.o Excellent knowledge and experience on multi-vendor platforms like Cisco, Checkpoint, and Fortigate network infrastructure & security deviceso Experience in supporting a large (firewalls, routers, switches) networkso Analyze information system needs, evaluating end-user requirements, custom-designing solutions, troubleshooting complex information systemso Design and implement new security adhering to standards to enhance enterprise network securityo Coordinate with business or vendors to plan and implement break-fix changes on network deviceso Troubleshooting and resolving issues involving network and security infrastructure, as part of daily operations.o Discussion and interaction with device vendors to address and resolve major issues. Configuring, maintaining and troubleshooting the communications through network security infrastructure.

Bangalore Urban, Karnataka, India

Bangalore Urban, Karnataka, India

Working as a technical team Lead handling P1 issue helping engineer for P2 and P3 issues Administering and managing the network security infrastructure inclusive of over 1000+ devices all over the globe, comprising market leading Firewalls and Load Balancers. Co-ordination with customer and other support teams to plan and implement various network security solutions as per the customer’s requirement. Troubleshooting and resolving issues involving network and security infrastructure, as part of daily operations. Discussion and interaction with device vendors to address and resolve major issues. Configuring, maintaining and troubleshooting the communications through network security infrastructure. Ensuring regular auto/ manual backup and maintenance of all security devices. Proactively reviewing security devices software versions and upgrading them in coordination with the supporting vendor teams. GTM/LTM Failover- Accessing the Wide IP from Internet and doing fine tunings in Monitors, Wide IP, VIP, SNAT, Pools, nodes, Irules (Basics) and implementing changes, also Shutting down the GTM and LTM manual failover testing along with customers. Configuring new policy rules in coordination with support teams and users in order to get the end to end connectivity between client and server infrastructure. Troubleshooting WAN routing protocols including BGP, EIGRP and implementing policy-based routing through route-map, prefix-list, community-list and other BGP attributes. Configuring and troubleshooting DHCP, HSRP, port-channel, port-security, access-list, VLAN, NAT, STP, and IPSEC to make sure proper connectivity in place between the clients and servers. Conducting proactive network site audits for the critical business impacting sites to make sure there are no issues in terms of network and making sure all the software and hardware is up to date.

Bangalore

Managing more than 50 Data Centres with various clients associated with our Data Centres, managing and troubleshooting customer devices like firewall, Router, Switch, Load balancer Handling Hi-Priority bridge calls for outages like Access, Distribution, Core, and Wan, DMZ edge router down, redundancy loss, resiliency Loss, high packet loss & latency in network across LAN/WAN Infrastructure. Currently handling role of L3 Senior Network support Engineer for performing all changes related to Network, Security, load balancer devices through change process. Security experience in Firewall devices like ASA 5510, 5520 & 5540, Juniper devices SRX 110,210 & check point R75/76. Expert in troubleshooting and Implementing VPN, Site to Site VPN, remote VPN ,Any connect and DM VPN. Working customer to setup website load balancing method, iRule and different types of profiles on LTM Installing certificates in Local traffic managements by & creating the Nodes, Virtual Pool Member, Wide IP, monitoring web services and then testing the reach ability of the server from Internet by accessibility VIP. Implementing /Troubleshooting Cisco ACS and ISE (TACACS and RADIUS ) for internal team and for customer with different authentication levels to access Routers, Switches, wireless and VPN Exposure on BGP, OSPF, EIGRP & MPLS PE (provider edge) and CE (customer edge), TDP & LDP protocols and redistributing the routes with route map & ACL Implementing Port-Channel, STP, RSTP, PVST, VTP, HSRP, VRRP, ACL, VDC, and VPC in Nexus 7010 (7K) switches. Work for permanent solution on reoccurring network Incidents with deep level trouble shooting and making emergency changes in the network to ensure uninterrupted services.

Bangalore Urban, Karnataka, India

Castleton Commodities International LLC (CCI USA) – It’s an leading merchant energy company. CCI is an active participant in the global markets for energy commodities, having data center in Stamford, Huston, Calgary, London, Singapore, Geneva, Shanghai and Othe Sub-locations Currently handling role of L2 + L3 Network support Engineer for performing all changes related to Network, Security, Voice & Wireless devices thru change process. Security experience in Firewall devices like ASA 5510, 5520 & 5540, CiscoIOS Zonebase firewall, Juniper devices SRX 110,210 & check point R75/76. Focus & good on troubleshooting plus Implementing VPN, Site to Site VPN, remote VPN ,Any connect and DM VPN. Exposure on BGP, OSPF, EIGRP & MPLS PE (provider edge) and CE (customer edge), TDP & LDP protocols and redistributing the routes with route map & ACL Implementing Port-Channel, STP, RSTP, PVST, VTP, HSRP, VRRP, ACL, VDC, and VPC in Nexus 7010 (7K) switches. Implementing along with trouble shooting experience in Zscaler Proxy, Barracuda Web filtering (proxy) device & WAN Accelerator River bed Managing MPLS WAN Connectivity as primary path and provide site level redundancy- VPN as backup path and implementing the new conqured trading site Working with Zscaler issues, like adding the script in PAC File giving access to cloud based application like Dropbox based user ID, fetching the Dashboard report, SSL & authentication by-pass, analyzing the logs, EZ-agent & OKTA server Experience in Cisco Call Manager servers (CCM) for Assign & un assign the extension, Cisco Unity Voice Mail servers & Call Manager Express (CME). Having experience on Cisco Wireless 5500 series, configuring LWAP and troubleshooting the issues with end users. Involve in major incidents and work with Incident, Change and problem management during incidents, also will document all the major incidents, resolution and share the analysis on the issues within team.

Bengaluru Area, India

Supporting More than 20 off shore Clients as well as onsite clients for accessing the servers/application over P2P, VRF, S2S, C2S and MPLS based also. Giving L2 and L3 level support for troubleshooting any network related issues configuring & Troubleshooting of Firewall (ASA5500, Checkpoint R75/76 Stonesoft ) Routers (1800/2800/2900/3600.) Switches (2900/3500/3700/4500/6500) AAA (ACS-1120).WLC (5508.4402) Handling bridges call for outages like Access, Distribution, Core, and Wan, DMZ edge router down, redundancy loss, resiliency Loss, high packet loss & latency in network across LAN/WAN Infrastructure Configuring and troubleshooting WAN & LAN routing protocols such as RIP, OSPF, EIGRP, BGP and LAN technologies like STP, RSTP, 802.1Q trunking, VLAN’s VTP, HSRP and Wireless Responsible managing and troubleshooting VPN like site to site ,DMVPN Remote vpn Anyconnect VPN SSL VPN Review project specifications, Network Topology and make design/implementationRecommendations for service improvements and providing the same to Customer Planning & Implementing Changes on Routers, Switches & Firewall As Per ITIL Standard. Troubleshooting Incidents, Coordinating with Onsite, Service Providers, Spoc’s, SME’s, TAC Teams to resolve the issues. Configuring the Wireless Controllers and maintaining the wireless controller to control all wireless devices and also provide user level service if required.

Bangalore

Implementing & Troubleshooting ASA Firewalls, Creating Policies and rules in ASA Responsible for site-to-site IP Sec VPNs; ACLs on corporate and client firewalls; new server deployment, VoIP administration; system upgrades including OS patches and virus definition updates; failed hardware replacement; and power monitoring and allocation. LAN and WAN installation, configuration, and support and IOS updates (Cisco routers, switches, firewalls). Configuring and troubleshooting WAN & LAN routing protocols such as RIP, OSPF, EIGRP, BGP and LAN technologies like STP, 802.1Q trunking, VLAN’s VTP, VRRP and HSRP ,Wireless infrastructure using Cisco devices Regularly provide either on-site or remote support to end users. Implementing /Troubleshooting Cisco ACS (TACACS+) for internal team and for customer with different authentication levels to access Routers, Switches, wireless and VPN Planned and designed the organization's LAN network expansion. Upgraded and configured Microsoft Window server and installed network routers, cabling, and Firewall Responsible for network management including network performance tuning,security monitoring, file server backup, and email server administration. Responsible for troubleshooting and debugging network related issues