System Administrator

SAKSOFT PTE LIMITED; Singapore; On-site; SGD 60,000 - 80,000; Full time

Job summary

A leading IT services provider in Singapore is seeking a skilled Infrastructure Engineer to administer VMware ESXi, vCenter, and OpenShift environments. The role involves troubleshooting, monitoring system health, and providing technical support for Windows servers. Candidates should have strong experience with virtualization technologies and a passion for optimizing system performance. This position offers an opportunity to work with cutting-edge technology in a dynamic team environment.

Qualifications

• Experience with VMware ESXi and vCenter management.
• Strong knowledge of Windows server administration.
• Experience in managing OpenShift environments.

Responsibilities

• Administer and maintain VMware ESXi hosts and vCenter Server.
• Monitor system health dashboards and address alerts.
• Troubleshoot VM resource bottlenecks and provide support.

Skills

VMware ESXi

vCenter

OpenShift

Windows Server

Hyper-V

Troubleshooting

Performance Monitoring

Job description

• Administer and maintain VMware ESXi hosts and vCenter Server.
• Manage clusters, resource pools, virtual switches, and datastores.
• Utilize vSphere technologies including vCenter, ESXi, vMotion, DRS, and HA.
• Monitor system health dashboards in vCenter; address alerts, failures, and performance degradation.
• Troubleshoot VM resource bottlenecks (CPU, memory, disk, network).
• Provide incident resolution and technical support for Windows system-related issues.
• Conduct performance analysis and tuning for Windows servers.
• Administer Windows Failover Clusters and Always-On Clusters.
• Administer and maintain Hyper‑V hosts and virtual machines.
• Configure and manage virtual switches, storage, and failover clustering.
• Monitor performance and availability of Hyper‑V environments
• Collaborate with storage, networking, and backup teams for integrated infrastructure support.
• Manage control plane components and worker nodes in OpenShift clusters.
• Monitor node health and resource usage (CPU, memory, disk).
• Analyze logs using OpenShift Cluster logs, Splunk, or external logging services.
• Troubleshoot networking, deployment, and node‑level issues in OpenShift.