Linux Administrator - VMware

DNA INFOTECH PTE. LTD.; Singapore; On-site; SGD 80,000 - 120,000; Full time

Job summary

DNA Infotech Pte. Ltd. in Singapore seeks an experienced infrastructure engineer to manage Linux and VMware environments, build and automate deployments, and support enterprise IT operations.

You will implement OS hardening, patching, capacity planning, incident response, and collaborate with application, database, network and security teams to ensure reliable, scalable systems. The role emphasizes scripting (Bash, Python, or Ansible), infrastructure‑as‑code practices, and CI/CD support to

Responsibilities

• Linux Administration
• Install configure maintain and troubleshoot Linux servers RHEL CentOS Oracle Linux Ubuntu
• Perform OS patching upgrades vulnerability remediation and system hardening
• Monitor server performance availability and capacity planning
• Conduct root cause analysis and resolve infrastructurerelated incidents
• Administer user accounts permissions file systems and security policies
• Manage backup and recovery processes
• VMware Administration
• Manage and support VMware vSphere ESXi vCenter and related technologies
• Provision configure and maintain virtual machines and clusters
• Monitor VMware environment performance and optimize resource utilization
• Execute VM migrations upgrades snapshots and disaster recovery activities
• Support high availability HA Distributed Resource Scheduler DRS and storage integration
• Build Infrastructure Engineering
• Perform server build configuration deployment and environment setup activities
• Develop and maintain infrastructure build standards and documentation
• Automate routine administration and deployment tasks using scripting tools
• Support infrastructure lifecycle management and capacity planning
• Collaborate with application database network and security teams for deployments
• Automation Scripting
• Develop automation scripts using Bash Shell Python or Ansible
• Support CICD and infrastructureascode initiatives where applicable
• Improve operational efficiency through automation and standardization
• Incident Change Problem Management
• Participate in incident management and troubleshooting activities
• Implement changes following ITIL processes
• Document procedures technical designs and operational runbooks
• Ensure compliance with change and release management standards

Job description

Key Responsibilities

• Linux Administration
• Install configure maintain and troubleshoot Linux servers RHEL CentOS Oracle Linux Ubuntu
• Perform OS patching upgrades vulnerability remediation and system hardening
• Monitor server performance availability and capacity planning
• Conduct root cause analysis and resolve infrastructurerelated incidents
• Administer user accounts permissions file systems and security policies
• Manage backup and recovery processes

• VMware Administration
• Manage and support VMware vSphere ESXi vCenter and related technologies
• Provision configure and maintain virtual machines and clusters
• Monitor VMware environment performance and optimize resource utilization
• Execute VM migrations upgrades snapshots and disaster recovery activities
• Support high availability HA Distributed Resource Scheduler DRS and storage integration

• Build Infrastructure Engineering
• Perform server build configuration deployment and environment setup activities
• Develop and maintain infrastructure build standards and documentation
• Automate routine administration and deployment tasks using scripting tools
• Support infrastructure lifecycle management and capacity planning
• Collaborate with application database network and security teams for deployments

• Automation Scripting
• Develop automation scripts using Bash Shell Python or Ansible
• Support CICD and infrastructureascode initiatives where applicable
• Improve operational efficiency through automation and standardization

• Incident Change Problem Management
• Participate in incident management and troubleshooting activities
• Implement changes following ITIL processes
• Document procedures technical designs and operational runbooks
• Ensure compliance with change and release management standards