Virtualization & OpenShift System Administrator

QUESSCORP SINGAPORE PTE. LTD.; Singapore; On-site; SGD 60,000 - 80,000; Full time

Job summary

A leading IT solutions provider in Singapore is seeking a professional in Virtual Infrastructure Management. The role involves administering VMware and Hyper-V environments, troubleshooting resource bottlenecks, and providing technical support for Windows systems. Candidates should demonstrate expertise in monitoring performance, managing clusters, and analyzing logs for OpenShift clusters. This position offers a dynamic work environment focused on integrated infrastructure support.

Responsibilities

• Administer and maintain the 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.

Job description

A leading IT solutions provider in Singapore is seeking a professional in Virtual Infrastructure Management. The role involves administering VMware and Hyper-V environments, troubleshooting resource bottlenecks, and providing technical support for Windows systems. Candidates should demonstrate expertise in monitoring performance, managing clusters, and analyzing logs for OpenShift clusters. This position offers a dynamic work environment focused on integrated infrastructure support.