Linux Support jobs in Chennai, Tamil Nadu

Key Responsibilities

• Install, configure, maintain, and troubleshoot Linux servers.
• Manage Linux operating systems such as RHEL, AlmaLinux, CentOS, and Ubuntu.
• Monitor server health, CPU, memory, disk, network, and system availability.
• Troubleshoot server, application, network, and OS-level issues.
• Perform OS patching, package updates, kernel upgrades, and security updates.
• Manage Linux users, groups, permissions, sudo access, and SSH configuration.
• Configure and manage system services using systemd.
• Monitor and analyze system logs for errors and performance issues.
• Perform disk and filesystem management, including LVM and mount points.
• Troubleshoot disk space, filesystem, CPU, memory, and process-related issues.
• Manage cron jobs and scheduled tasks.
• Perform server hardening and basic security configuration.
• Manage firewall rules and network connectivity.
• Perform server health checks and routine maintenance activities.
• Support server provisioning, decommissioning, and migration activities.
• Manage backups and assist with disaster recovery activities.
• Maintain server documentation and operational procedures.
• Automate repetitive administrative tasks using Bash/Python.
• Manage and maintain cloud infrastructure, particularly AWS EC2, where required.
• Coordinate with application, network, security, and development teams for issue resolution.

Required Technical Skills

• Strong Linux system administration knowledge.
• Hands-on experience with RHEL/AlmaLinux/CentOS/Ubuntu.
• Strong knowledge of Linux commands and troubleshooting.
• Good understanding of TCP/IP, DNS, SSH, HTTP/HTTPS, ports, and routing.
• Knowledge of systemd, processes, services, cron, users, groups, and permissions.
• Experience with disk, filesystem, LVM, and mount management.
• Knowledge of package management such as yum, dnf, and apt.
• Experience with Linux log analysis and troubleshooting.
• Knowledge of server monitoring and alerting tools.