Balaji Kc

Senior Linux System Administrator with 9+ years of experience in Linux and Windows server administration, web hosting infrastructure, virtualization, security, backup and 24x7 production operations. Experienced in VMware vSphere/ESXi and KVM virtualization environments, including VMware vCenter Server, ESXi host administration, virtual machine provisioning and configuration, VM resource management, VM migration using vMotion, VM cloning, templates, snapshots, datastore and storage management, virtual networking, HA, DRS and infrastructure troubleshooting. Experienced in RHEL/CentOS/Ubuntu, cPanel/WHM, Plesk, DirectAdmin, Webuzo, VMware vSphere/ESXi and KVM environments.

Hands-on experience with system hardening, security patch management, Apache/Nginx/LiteSpeed, IIS, DNS/BIND, Exim/Postfix, MySQL/MariaDB, RAID, backup and disaster recovery, SSL/TLS, monitoring and Bash/Shell automation. Experienced in L2/L3 incident management, SLA-driven production support, server migrations, root-cause troubleshooting and customer-impacting infrastructure incidents. Currently developing advanced Bash scripting, configuration automation, cloud infrastructure fundamentals and DevOps-aligned operations.

Senior Linux Server Administrator - Good Domain Registry Pvt. Ltd. - Chennai, India

(2017-06 - 2026-09)

• Administer and support 100+ production Linux web servers across cPanel/WHM, Plesk and custom hosting platforms, along with Windows servers, in a 24x7 production environment.
• Execute proactive system hardening and security patch management across production servers to reduce vulnerability exposure and maintain security best practices.
• Install, configure and optimize Apache, Nginx and LiteSpeed web servers to support application performance, availability and hosted client workloads.
• Deploy, configure and upgrade cPanel/WHM, Plesk (Linux/Windows), DirectAdmin and Webmin hosting control panels.
• Administer VMware vSphere/ESXi and KVM virtualization environments, provisioning and maintaining Linux and Windows virtual machines.
• Manage user access, disk quotas and firewall policies using CSF/IPTables to enforce security and resource controls across multi-tenant hosting infrastructure.
• Lead end-to-end server migrations involving client websites, applications, MySQL/MariaDB and MSSQL databases across hosting environments with minimal downtime.
• Design and maintain software and hardware RAID configurations and perform disk-failure recovery to safeguard data integrity for production workloads.
• Implement and maintain automated backup and disaster recovery operations using Rsync, JetBackup and Amazon S3 to improve backup reliability and restore readiness.
• Manage SSL/TLS certificate lifecycle, including automated renewal scripting and Let's Encrypt integration for secure client-facing services.
• Deliver L2/L3 technical support for Linux and Windows hosting incidents, including website errors, service outages and email deliverability issues within SLA targets.
• Build and maintain Zabbix monitoring and Bash/Shell-based alerting automation to support proactive incident detection and response.
• Administer IIS-based hosting for Windows clients, including DNS, FTP and SSL certificate configuration.
• Support Windows Server administration, including Active Directory configuration, DNS management and scheduled backup automation using Windows Task Scheduler and third-party tools.
• Resolve high-priority DNS, hosting and email incidents in a fast-paced, customer-impacting 24x7 production support environment.

Diploma - Kumaran Polytechnic (1999-06 - 2001-05)

B.Tech. - Electrical & Electronics Engineering - Sri Manakula Vinayagar Engineering College (Pondicherry University) (2001-06 - 2004-04)

M.E. - Power Electronics & Drives - Sathyabama University (2008-06 - 2010-04)