Linux System Administrator (L2)

Key Responsibilities:

• Provide L2 support for Linux servers and related infrastructure, including Red Hat, CentOS, Ubuntu, or other distributions.
• Install, configure, and maintain Linux operating systems, patches, and updates.
• Monitor system performance, analyze logs, and troubleshoot hardware/software issues.
• Manage user accounts, permissions, and security policies in accordance with IT standards.
• Automate routine tasks using shell scripting (Bash) or other scripting languages.
• Work with storage, network, and backup teams to ensure data integrity and availability.
• Implement security best practices, including firewall configuration, vulnerability assessments, and patch management.
• Support deployment and configuration of applications running on Linux servers.
• Maintain documentation of system configurations, procedures, and incident reports.
• Participate in on-call rotations and respond to escalated incidents promptly.
• Collaborate with cross-functional teams for capacity planning and system upgrades.

Qualifications and Requirements:

• Bachelor's degree in Computer Science, Information Technology, or a related field.
• 3+ years of experience as a Linux System Administrator, preferably with L2 support exposure.
• Strong knowledge of Linux OS internals, file systems, process management, and networking.
• Hands-on experience with system monitoring tools (Nagios, Zabbix, Prometheus, etc.).
• Proficient in shell scripting (Bash) and basic automation techniques.
• Familiarity with configuration management tools such as Ansible, Puppet, or Chef is a plus.
• Good understanding of security concepts, including SELinux, iptables/firewalld, SSH hardening.
• Experience with virtualization technologies (VMware, KVM) and cloud platforms (AWS, Azure, GCP) is advantageous.
• Ability to analyze and resolve complex system and network issues.
• Strong communication skills and ability to work in a team environment.

Desirable Skills:

• Certification such as RHCSA, RHCE, or equivalent Linux certifications.
• Experience with containerization tools like Docker and orchestration platforms like Kubernetes.
• Knowledge of database administration (MySQL, PostgreSQL) on Linux.
• Familiarity with ITIL processes and ticketing systems (ServiceNow, Jira).