Senior Infrastructure Lead - 24x7 Unix/Linux & Cloud Ops

HCL Technologies Limited; Singapore; On-site; SGD 100,000 - 156,000; Full time

Job summary

HCL Technologies Limited in Singapore seeks an experienced Senior Unix Engineer (L2/L3) to provide 24x7 operational support for enterprise datacenter and cloud environments, including incident management, troubleshooting, automation, and high availability across Linux, Solaris, and related stacks.

You will oversee patching, system administration, virtualization, and IaC workflows using Ansible, Terraform, Puppet, and related tools, collaborating with cross-functional teams to ensure service

Qualifications

• Bachelor's Degree in Engineering, Computer Science, Information Technology, or related field.
• 6+ years of Unix/Linux system administration and support.
• Strong troubleshooting in Linux, Solaris, and AIX environments.
• Experience supporting enterprise-scale infrastructure in data center and cloud environments.
• Excellent verbal and written communication skills.
• Analytical, problem-solving, and customer management skills.

Responsibilities

• Provide L2/L3 Unix/Linux/Solaris administration and operational support across Data Center and Cloud environments.
• Perform installation, configuration, patching, upgrades, migrations, and lifecycle management of Unix/Linux platforms.
• Manage Red Hat Satellite for patching, provisioning, and lifecycle management.
• Support Docker and Kubernetes platforms and cloud VM deployments (AWS/Azure/GCP).
• Hands-on in Ansible and/or Terraform for IaC and automation workflows.
• Develop and maintain automation scripts in Shell and Python to improve efficiency.
• Drive continuous improvement to reduce manual effort and enhance reliability.
• Support incident, problem, change, and RCA processes with cross-functional teams.

Skills

Unix/Linux

Solaris

Troubleshooting

Automation

Scripting

Cloud

HA/Clustering

Education

Bachelor's Degree in Engineering/CS/IT

Tools

RH Satellite

GPFS

Centrify

Puppet

Ansible

Terraform

Docker

Kubernetes

Job description

HCL Technologies Limited in Singapore seeks an experienced Senior Unix Engineer (L2/L3) to provide 24x7 operational support for enterprise datacenter and cloud environments, including incident management, troubleshooting, automation, and high availability across Linux, Solaris, and related stacks.

You will oversee patching, system administration, virtualization, and IaC workflows using Ansible, Terraform, Puppet, and related tools, collaborating with cross-functional teams to ensure service