Unix System Administrator (L2/L3)

Job Summary

We are looking for an experienced Unix System Administrator with strong hands-on expertise in server provisioning, troubleshooting, OS administration, and server upgrade activities . The candidate should be capable of independently handling production server issues and supporting hosted applications without relying only on SOP/documentation.

This role requires strong problem-solving ability and deep OS-level administration experience across Unix/Linux environments.

Key Responsibilities

• Provision physical/virtual Unix/Linux servers (manual & automated)
• Install and configure operating systems
• Perform server build, deployment, and commissioning
• Troubleshoot OS-level issues independently
• Analyze application issues from server perspective
• Perform in-place and parallel server upgrades
• Manage server hardening and configuration
• Handle performance troubleshooting
• Troubleshoot boot issues, file system issues, service failures
• Monitor logs and system health
• Support production incidents and critical escalations
• Perform root cause analysis
• Work with application, database, and network teams

Technical Skills Required

Operating Systems

• Red Hat Enterprise Linux
• Oracle Solaris
• AIX
• Unix/Linux administration

Server Administration

• Server provisioning
• OS installation
• Kickstart / automated build tools
• Filesystem management
• User/group administration
• Service management

Troubleshooting

• Kernel / boot issue troubleshooting
• Performance analysis
• Disk / filesystem troubleshooting
• Process-level debugging
• Log analysis

Scripting

• Shell scripting
• Automation basics

Infrastructure

• Virtualization knowledge
• Network troubleshooting basics
• Application hosting support