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