Linux Administrator

About the role

We are seeking an experienced Linux Administrator to manage and support critical infrastructure across development, testing, and production environments. The role covers RHEL-based systems, infrastructure automation, security compliance, monitoring, and Level 3 incident support.

Key responsibilities

• Install, configure, harden, patch, and maintain Linux servers, primarily running Red Hat Enterprise Linux (RHEL)
• Tune operating systems, troubleshoot performance issues, and support capacity planning
• Manage storage, networking, and system configurations, including LVM and kernel parameters
• Provide Level 3 support for Linux incidents and participate in standby and on-call support when required
• Support high availability and disaster recovery configurations
• Develop automation using Ansible, Bash, and Python for provisioning, patching, and configuration management
• Use BigFix for patch deployment, software distribution, endpoint management, and compliance reporting
• Monitor system health, logs, alerts, and performance using tools such as Zabbix
• Investigate system bottlenecks, kernel issues, and application dependencies to maintain service availability
• Remediate vulnerabilities and ensure compliance with internal policies, CIS benchmarks, security standards, and audit requirements

About you

• Degree in Computer Science, Information Technology, or a related field
• At least 5 years of experience in an infrastructure engineering or Linux administration role supporting critical systems
• Strong hands-on experience with RHEL/Linux, including LVM, networking, performance tuning, and troubleshooting
• Experience developing infrastructure automation with Ansible and shell scripting
• Proficiency in Bash and working knowledge of Python
• Experience supporting large-scale production environments
• Understanding of Linux security hardening, patch management, and compliance requirements
• Ability to provide 24×7 standby or on-call support when required
• Strong working knowledge of banking technology environments
• Preferred: Red Hat certification, such as RHCSA or RHCE