Red Hat Linux System Administrator

About the Role

The Red Hat Linux System Administrator role is responsible for the daytoday management and support of AIBs Red Hat Linux estate consisting of approximately 150 x86 physical servers and around 4500 VMwarehosted virtual machines supporting critical banking services. The position requires strong expertise in RHEL 8 and 9 VMware virtualisation exposure to Azure cloud and solid automation and scripting skills using Ansible and AnsibleAutomationPlatform. Certifications such as RHCSA and RHCE are considered beneficial.

Responsibilities

• Platform & System Administration Install upgrade and configure RHEL 8 & 9; maintain and optimise system performance; manage physical and virtual servers; ensure availability and accessibility of server resources.

• Automation & Engineering Develop and maintain automation using Ansible and AAP; use Bash/Ansible scripting to reduce manual effort; contribute to standard builds patching and configuration management. Monitoring Performance & Troubleshooting Monitor system health; review OS and application logs; resolve issues; optimise CPU memory IO and storage utilisation.

• Infrastructure & Cloud Support VMware virtualisation platforms; work with Azure cloud services; support infrastructure changes upgrades and lifecycle activities.

• Security & Compliance Ensure compliance with security standards; apply patches; perform vulnerability remediation; maintain system integrity; support backup and data protection; awareness of SCOM is beneficial.

• Storage & Supporting Technologies Maintain understanding of SAN/NAS technologies; support integration across compute storage and network layers.

Key Requirements

• Strong handson experience with RHEL 8 & 9.

• Experience with VMware virtualisation.

• Proficiency in Ansible/AAP and Bash scripting.

• Familiarity with Azure cloud services Solid understanding of system performance tuning logging and troubleshooting.

• Strong troubleshooting and problemsolving skills.

• Excellent written and verbal communication.

• Strong organisational and timemanagement abilities.

• High attention to detail and accuracy.

• Proactive approach to issue identification and resolution.

• Very good collaboration skills.

• Continuous improvement mindset.