Job Duties: Manage, monitor, and maintain enterprise IT infrastructure, including physical and virtual servers, storage systems, network devices, firewalls, and backup solutions.
Install, configure, patch, and administer Windows Server and Red Hat Enterprise Linux (RHEL) operating systems.
Administer and support virtualization and container platforms, including VMware, OpenShift, and Kubernetes.
Perform backup, restoration, replication, and recovery activities to ensure data integrity and business continuity.
Implement infrastructure security hardening and vulnerability remediation based on CIS Benchmarks and Singapore Government security standards.
Plan, test, and deploy operating system patches, firmware updates, and hardware upgrades following established change management procedures.
Monitor infrastructure health and performance using tools such as Grafana and Prometheus, and conduct capacity planning and performance tuning.
Participate in disaster recovery pla...