Senior Network & Systems Engineer (NAC & Server Admin)

A-IT SOFTWARE SERVICES PTE LTD; Singapore; On-site; SGD 90,000 - 130,000; Full time

Job summary

A-IT SOFTWARE SERVICES PTE LTD in Singapore is seeking an experienced Senior Network Engineer to design, implement, and maintain complex network infrastructures across LAN/WAN, including switches, routers, and servers. The role emphasizes hands-on administration of Windows Server and Linux, along with installation, upgrades, backups, and occasional scripting.

Exposure to NAC systems such as ClearPass, SolarWinds, and Infoblox is preferred, with responsibilities spanning end-user support and

Qualifications

• At least 6 years of experience in network design and implementation, network hardware configuration, troubleshooting, and performance tuning, as well as system administration.
• At least 6 years of experience managing network products such as Cisco, F5, and others.
• At least 6 years of experience administering Windows Server and Linux operating systems.
• Sound knowledge of various network protocols and topologies, including LAN, WAN, switches, routers, and servers.
• Preferably experienced in managing Network Access Control (NAC) systems such as ClearPass, SolarWinds, and Infoblox.

Responsibilities

• Administer and troubleshoot network system infrastructure.
• Administer and troubleshoot Windows Server and Linux operating systems.
• Perform installation and upgrading of network systems and servers.
• Perform installation of operating systems, software applications, and device drivers on servers.
• Perform backup and recovery of network devices and servers.
• Perform simple scripting in Windows Server and Linux environments.
• Perform any other tasks related to network and server hardware and software, end‑user support and project work as assigned by supervisor.
• Administer ClearPass Network Access Control, SolarWinds, and Infoblox.

Skills

Network design

Network implementation

Network hardware config

Troubleshooting

Performance tuning

System administration

Windows Server

Linux

Tools

Cisco

F5

ClearPass

SolarWinds

Infoblox

Job description

A-IT SOFTWARE SERVICES PTE LTD in Singapore is seeking an experienced Senior Network Engineer to design, implement, and maintain complex network infrastructures across LAN/WAN, including switches, routers, and servers. The role emphasizes hands-on administration of Windows Server and Linux, along with installation, upgrades, backups, and occasional scripting.

Exposure to NAC systems such as ClearPass, SolarWinds, and Infoblox is preferred, with responsibilities spanning end-user support and