Unix/Linux System Administrator

About the role

The employer is looking for a skilled and proactive Unix/Linux Administrator with 6-8 years of hands-on experience managing enterprise Unix/Linux environments. The role focuses on system resilience through service recovery, disaster recovery (DR) testing and root cause analysis (RCA) of incidents. It requires 24x7 on-call support during assigned shifts.

Key responsibilities

• Perform service recovery for Unix/Linux systems to ensure minimal downtime and business continuity.
• Troubleshoot OS, CPU, memory, filesystem, network and performance issues, and manage production incidents including incident recovery and RCA.
• Conduct DR testing with business and infrastructure teams and investigate critical incidents.
• Monitor server health, capacity, availability and performance.
• Maintain servers (Red Hat, AIX, Solaris) in production and DR environments.
• Coordinate with application, database, network, storage and other infrastructure teams.
• Maintain operational procedures, technical documentation and knowledge articles.
• Provide 24x7 on-call support, respond to severity 1 incidents under pressure and communicate with stakeholders during high-impact incidents.
• Work with L1 on monitoring system performance and proactively addressing potential issues.

Required profile

• Degree or diploma in Information Technology/Computer Science or equivalent.
• 6-8 years of experience in Unix/Linux system administration and production support.
• Experience with incident, problem and change management processes.
• Good analytical, troubleshooting, communication and coordination skills.
• Good to have: knowledge of ITIL processes, VMware/virtualization, SAN/LUN/multipathing storage, and bank sector experience.

Required skills

• Strong Unix/Linux administration and troubleshooting; filesystem/LVM, processes, services, networking, user administration and shell scripting.
• Red Hat Linux, AIX, Solaris; VMware ESX, network and storage.
• Incident, problem and change management; good to have: ITIL, Geneos, Splunk, scripting.