System & Network engineer

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

Job summary

A technology services company in Singapore seeks a System and Network Administrator to manage virtualization platforms and support Windows Server environments. The successful candidate will have 2–4 years of experience, knowledge of network infrastructure, and strong troubleshooting skills. Key responsibilities include system performance monitoring, documentation maintenance, and collaboration for project support. Familiarity with Azure and security practices is preferred.

Qualifications

• Minimum 2–4 years of relevant experience in system and network administration.
• Hands-on experience with virtualization platforms and Windows Server.
• Knowledge of network infrastructure and security best practices.

Responsibilities

• Manage and maintain virtualization platforms.
• Administer and support Windows Server environments.
• Design and troubleshoot network infrastructure.

Skills

Troubleshooting skills

IT infrastructure understanding

Communication skills

Teamwork

Problem-solving skills

Education

Diploma or Degree in Information Technology or related field

Tools

Hyper-V

VMware

Windows Server

Microsoft Azure

Job description

Key Responsibilities

• Manage and maintain virtualization platforms (Hyper-V and VMware)
• Administer and support Windows Server environments
• Design, implement, and troubleshoot network infrastructure (LAN/WAN, VPN, firewall)
• Monitor system performance and ensure high availability of IT services
• Perform system upgrades, patching, and routine maintenance
• Troubleshoot hardware, software, and network issues
• Support backup, disaster recovery, and business continuity processes
• Maintain proper documentation of systems, configurations, and procedures
• Collaborate with internal teams and vendors for project implementation and support

Requirements

• Diploma or Degree in Information Technology, Computer Science, or related field
• Minimum 2–4 years of relevant experience in system and network administration
• Hands‑on experience with:Hyper‑V and/or VMware virtualization platformsWindows Server (Active Directory, DNS, DHCP, Group Policy)Network infrastructure (switching, routing, firewall)

Preferred / Added Advantage

• Experience with Zscaler (ZIA/ZPA)
• Experience with Network Access Control (NAC) solutions (e.g., Cisco ISE, FortiNAC)
• Familiarity with Microsoft Azure (IaaS, networking, identity)
• Knowledge of security best practices and frameworks
• Relevant certifications (e.g., Microsoft, VMware, Cisco, Azure)

Key Skills

• Strong troubleshooting and problem‑solving skills
• Good understanding of IT infrastructure and security concepts
• Ability to work independently and in a team
• Good communication and documentation skills