Karthikeyan Dhanabalan

Experience

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  Pentagon Global Solutions Ltd

  Aug 2000 - Dec 2001

  Customer Support Executive

  + Configuring User, Rights to files, Directories and Network based Printer. System service + Taking class for MS-Offices ,C ,C++

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  The Professional Technology

  Jan 2002 - Jul 2002

  Technical Service Engineer

  + Installation of windows 2000 and Linux in Desktop. + Maintenance and trouble shooting of the Desktop & Printer

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  Kumara guru College of Technology

  Jul 2002 - Mar 2007

  System Administrator

  + Maintaining both hardware and software related problems in more than 850 Computers (Pentium – I to Pentium – IV) and more than 100 printers and peripherals Networking (Designing, Cabling) + Installing Network Operating System (Windows Family, Linux) + Configuring Web servers and maintenance (in Linux Platform) + Configuring Mail Server using Send mail and Open webmail & maintenance+ Configuring and maintaining proxy servers, firewall using Squid, IPtables. + Configuring and Maintaining SUSE Enterprise Server, Centos Server. Show less

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  Kplus Information Technology Solutions

  Mar 2007 - Feb 2008

  Technical Support Engineer

  + Installed, Configured Linux and Windows Box and providing support for users. + Maintaining enter server of Kplus in Chicago USA + Software Installation/Upgrades / Trouble shooting +Reporting Hardware failures in timely manner in Clients Machines +Backup software Verities, Verities updating, Job Scheduling, weekly and daily backup and +Restoring backup, device mounting using external drive and tap drive on Remote Login. +Both Hardware and software Firewall installations, Tuning and maintenance Show less

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  Assistanz Networks Private Ltd

  Feb 2008 - Jan 2023

  Information Technology Team Lead

  + Working as a Linux Technical Support Engineer supporting US, UK, South Africa and Australian Clients. Supporting more than 500 servers running on Linux. + Administration of common networking services like DNS, DHCP, NIS, NFS, SAMBA, SSH Service, VNC Viewer, and Troubleshooting File sharing and security.+ Having work experience in web servers like Apache, Nginx, Lightspeed & Tomcat and mails servers like Exim, sendmail & postfix.+ Configuring the LVM with grows the Disk space. Created and Resized the Volume Groups and Logical Volumes.+ Installing, Configuring, Optimizing and troubleshooting the Apache with PHP and MySQL.+ Installed and configured the monitoring tools like Nagios and Zabbix.+Optimizing and securing the production servers by using Iptables, Software firewalls [CSF & APF] and tweaking the kernel parameters. + Performing routine tasks such as adding, modifying and deleting user accounts and configured disk quotas for users and groups.+ Configuring and Optimizing the FTP servers [VsFTP, Pure-FTP, Pro-FTP] for secure file transfer. Configuring and Tweaking the SSH for Secure login. + Kernel Updating and Patching on Linux Servers + Installing and configuring the Cloud linux kernel. Managing the users by using LVE manager and CageFS.+ Managing servers through remote administration using secure shell, RDP and web consoles like KVM etc.+ Configured Load Balancing and replication technique for Web server & Database server on Linux. + Handling cPanel, Direct Admin and Parallel Plesk Control Panel Servers.+ Installing and Configuring the applications & tools such as FFMPEG, RedMine, SVN, etc. Show less

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  AssistanZ Networks Pvt Ltd

  Jun 2017 - Jan 2023

  Customer Service Support Manager
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  Mphasis

  Jan 2023 - now

  Delivery Lead

  Working on cloud infrastructure with monitoring tools like Grafana with Splunk tools integration.Mostly involved in production activities. Remedy for Incident and Change requests, problem management. Jira story for daily activities. Once the activity is completed, prepare the documents in the confluence forum page for internal reference and work on application migration to cloud infrastructures. Working experience on IBM SIMQ servers. Application deployment and installation with configuration. AWS web interface tools and Google Cloud infrastructure are used for Kubernetes and containers of the application. More new challenges in troubleshooting are faced in daily activities. Handling team members' goals and responsibilities. Motivating the team members to achieve their goals. Presenting to the management about the achievements and challenges faced on the activity and how we have mitigated the risk. Show less