Joswa M

System Administrator with around 3 years of experience in Linux and Windows server environments, specializing in production support, troubleshooting, and virtualization. Experienced in diagnosing server, application, and network issues using system logs and monitoring tools, with hands-on exposure to VMware and incident handling.

System Administrator at Corent Technologies (2023-05 – 2026-03)

• Managed 200+ Linux (RHEL, Ubuntu, CentOS, SUSE, Fedora) and Windows Server systems in production, ensuring stable and reliable operations
• Handled 10–15 incident tickets daily via Redmine, performing L2-level troubleshooting within defined SLA timelines
• Provisioned and managed virtual machines in VMware ESXi, including OS installation and prerequisite setup
• Automated software installations on Linux and Windows using Bash and Batch scripts
• Diagnosed and resolved server, application, and network issues using Zabbix and Centreon while monitoring system performance (CPU, memory, disk)
• Performed production patching and routine server maintenance to ensure system security and updates
• Managed Active Directory user administration and supported networking tasks including DNS configuration and IP management

M.Sc. in Computer Science – Bharathidasan University (2019 – 2021)

B.Sc. in Computer Science – Bharathidasan University (2016 – 2019)