Unix L2/L3 Support Engineer - CORNERSTONE GLOBAL PARTNERS PTE. LTD.

We are seeking an experienced Unix L2/L3 Support Engineer with strong expertise in Linux (Red Hat), Solaris, and AIX administration to provide 24x7 operational support for enterprise data centre and cloud environments.

The role involves incident management, problem determination, system administration, automation, infrastructure support, performance optimisation, patch management, and ensuring the high availability of critical business services.

The successful candidate will possess strong troubleshooting skills across Unix platforms, cloud technologies, automation tools, clustering solutions, and infrastructure management frameworks.

Key Responsibilities

Unix/Linux/Solaris/AIX Administration

Provide L2 administration and operational support for Linux, Solaris, and AIX servers across data centre and cloud environments.

Perform installation, configuration, administration, patching, upgrades, migration, and lifecycle management of Unix/Linux platforms.

Manage virtualisation technologies, including:

Solaris Zones and LDOMs

AIX LPARs and VIOS

Perform OS hardening, capacity management, performance tuning, and system optimisation.

Troubleshoot server, operating system, hardware, storage, and application-related issues.

Handle break-fix activities and service restoration within agreed SLAs.

Create and maintain environments for batch processing and associated reporting systems.

Infrastructure & Platform Management

Manage Red Hat Satellite for patching, provisioning, and lifecycle management.

Administer Centrify, IBM GPFS, Puppet, and Ansible environments.

Support Docker and Kubernetes platforms.

Manage AWS and Azure virtual machine deployments and administration.

Support storage integration, clustering, partitioning, and virtualisation technologies.

Provide support for high availability (HA) and cluster technologies.

Automation & DevOps

Apply hands-on experience in Ansible and/or Terraform for infrastructure provisioning, configuration management, and automation.

Use Shell Scripting and Python to automate operational and administrative tasks.

Develop, maintain, and enhance automation workflows, reusable playbooks, and Infrastructure-as-Code (IaC) solutions.

Drive continuous improvement initiatives to reduce manual effort and improve operational efficiency.

Automate patching, monitoring, reporting, server provisioning, and compliance-related activities.

Incident, Problem & Change Management

Monitor infrastructure health and proactively address issues.

Participate in incident, problem, and change management processes.

Perform root cause analysis (RCA) and provide corrective and preventive actions.