Note: Successful candidates need to be comfortable with working on weekends and shift as and when required

About the Role

We are looking for Virtualisation & OS Engineers to join our infrastructure team. You will be responsible for the full lifecycle of virtualised server environments and operating systems across on-premises platforms. The role spans VM provisioning and cluster management, OS configuration, patching, security hardening, user management and print/file services. You will work in a fast-paced managed services environment with a strong emphasis on automation and continuous improvement.

Key Responsibilities

.Provision and configure virtual machines following defined build standards and processes

.Manage hypervisor clusters - HA, DRS, vMotion, resource pools, snapshots and vCenter RBAC

.Administer Windows Server and Linux OS - configuration, patching and CIS hardening

.Manage user accounts, access permissions, SSH keys and certificate lifecycle

.Configure and maintain vSwitch, VLAN and virtual network settings within the hypervisor environment

.Build and maintain OS images and manage PXE-based re-imaging pipelines

.Configure and maintain system services, scheduled tasks, file sharing, print server and SFTP infrastructure

.Maintain security posture - endpoint protection, firewall rules and compliance policy enforcement

.Deploy and maintain log collection agents across the server fleet

.Manage disk partitions, volumes, filesystems and storage capacity

.Contribute to automation initiatives and maintain operational runbooks and documentation

.Respond to and resolve infrastructure incidents within agreed service levels

.Participate in change management and peer review of technical changes

. Any other ad-hoc duties as assigned by supervisors

Required Skills & Competencies

.Hypervisor administration - VMware vSphere / ESXi, Microsoft Hyper-V and KVM

.vCenter management - clusters, resource pools, distributed switches, HA, DRS and vMotion

.Virtual machine provisioning, snapshot management and VM lifecycle operations

.vSwitch and VLAN configuration - virtual network management within hypervisor environments

.OS re-imaging - PXE boot, WDS and automated OS deployment pipelines

.Windows Server administration - Active Directory, Group Policy, IIS, Print Server and SFTP

.Linux administration - RHEL and Ubuntu system configuration, service management and hardening

.OS patching and CIS hardening - enterprise patch management and compliance frameworks

.User and access management - account provisioning, group management and privilege control

.Infrastructure as code - Terraform or equivalent for VM provisioning and configuration

.Configuration management - Ansible or equivalent automation frameworks

.Security tools - endpoint protection, firewall management and compliance scanning

.File sharing protocols - NFS, CIFS and SMB server and client configuration

.Storage management - LVM, disk partitioning, filesystem lifecycle and capacity optimisation

.Certificate lifecycle management and Windows Certificate Authority

.Version control and code review - Git workflows and collaborative development practices

Interested applicants, please email your resume to Karin Chan Wei Kien

Email: [HIDDEN TEXT]

CEI Reg No: R1104584

Recruit Express Pte Ltd

UEN: 199601303W

EA Licence No:99C4599

L3 Virtualisation OS Engineer (weekends, shift) IKR