Senior Systems Engineer: Production Infra, Cloud & Security

NETXPOSE PTE. LTD.; Singapore; On-site; SGD 78,000 - 123,000; Full time

Job summary

NetXpose PTE Ltd is expanding and seeks an experienced Systems Engineer to design, implement, maintain, and troubleshoot business-critical IT infrastructure. This is not a junior role; you will own production systems across Windows, Linux, virtualization, cloud, networking, and security.

You will manage Windows Server environments, VMware/Hyper-V/Proxmox, Microsoft 365, Entra ID, and Linux services, while improving security, backups, monitoring, and automation to support critical operations.

Qualifications

• Minimum 4 years hands-on experience in systems or infrastructure engineering.
• Experience supporting real production environments.
• Strong knowledge of Windows Server, Active Directory, and Microsoft 365/Entra ID.
• Hands-on virtualization with VMware, Hyper-V or Proxmox.
• Linux administration and security hardening experience.
• Networking knowledge: TCP/IP, VLANs, VPNs, DNS, firewalls.
• Experience with patch management, backups, and incident response.
• Degree or diploma in CS/IT/Engineering or related field.

Responsibilities

• Design, implement, maintain, and troubleshoot business-critical IT infrastructure.
• Own production systems across Windows, Linux, virtualization, cloud, networking and security.
• Deploy and manage Windows Server environments, AD, DNS, DHCP, GPO, file services.
• Manage VMware/Hyper-V/Proxmox environments.
• Administer Microsoft 365, Entra ID, Exchange Online, SharePoint, Teams.
• Configure and maintain Linux systems; patching, monitoring, security hardening.
• Manage servers, storage, backups, monitoring platforms, and core IT services.
• Implement security controls, patch management, endpoint security, access controls.
• Design and test backup, restore and DR procedures.
• Monitor availability and troubleshoot complex issues.
• Automate with PowerShell, Bash, Python, Ansible, SaltStack.
• Maintain technical documentation and runbooks.
• Participate in infrastructure migrations and deployments.

Skills

Windows Server

Active Directory

Microsoft 365 / Entra ID

Linux Administration

VMware/Hyper‑V/Proxmox

Networking basics

Security hardening

Automation scripting

Education

Degree or Diploma in CS/IT/Engineering

Tools

VMware

Proxmox

Veeam

Fortinet

Cisco

Zabbix

Job description

NetXpose PTE Ltd is expanding and seeks an experienced Systems Engineer to design, implement, maintain, and troubleshoot business-critical IT infrastructure. This is not a junior role; you will own production systems across Windows, Linux, virtualization, cloud, networking, and security.

You will manage Windows Server environments, VMware/Hyper-V/Proxmox, Microsoft 365, Entra ID, and Linux services, while improving security, backups, monitoring, and automation to support critical operations.