Senior Enterprise Network Engineer – Multi‑Site & SD‑WAN

ARGYLL SCOTT SINGAPORE PTE. LTD.; Singapore; On-site; SGD 90,000 - 130,000; Full time

Job summary

ARGYLL SCOTT SINGAPORE PTE. LTD. is seeking a hands-on Network Engineer to manage and enhance its network infrastructure across multiple sites in Singapore.

You will handle day-to-day operations, contribute to project delivery, and collaborate with internal IT teams and external service providers to ensure reliable connectivity. You will work on routing, switching, wireless, VPNs and security controls, support after-hours maintenance, and help document network designs and workflows while

Qualifications

• 4–6 years of enterprise network engineering experience.
• Strong knowledge of routing, switching, wireless, firewalls and VPNs.
• Hands-on experience with TCP/IP, DNS, DHCP, VLANs, BGP and OSPF.
• Experience with Fortinet/FortiGate, Aruba, HPE, Ruckus or Cisco.
• Ability to troubleshoot production issues and own network changes.
• Experience coordinating vendors and maintaining documentation.

Responsibilities

• Manage and support enterprise network across LAN, WAN, SD-WAN, wireless and data centres.
• Deliver network projects: site openings, relocations, hardware refreshes and firewall changes.
• Prepare requirements, plans, testing procedures and rollback steps.
• Perform hands-on configuration, installation, and production changes.
• Provide second- and third-line support for incidents and requests.
• Maintain network diagrams and IP addressing plans.
• Coordinate vendors and service providers to ensure delivery.
• Improve availability, performance and security via standardisation and failover testing.
• Support security controls: firewalls, VPNs, segmentation and access controls.
• Automate tasks such as backups, checks and reporting.
• Collaborate with application, security and cloud teams; participate in after-hours windows.

Skills

Routing & Switching

Wireless Networking

Firewalls

VPN Technologies

TCP/IP

DNS/DHCP

VLANs

BGP

OSPF

Vendor Coordination

Tools

Fortinet/FortiGate

Aruba

HPE

Ruckus

Cisco

Job description

ARGYLL SCOTT SINGAPORE PTE. LTD. is seeking a hands-on Network Engineer to manage and enhance its network infrastructure across multiple sites in Singapore.

You will handle day-to-day operations, contribute to project delivery, and collaborate with internal IT teams and external service providers to ensure reliable connectivity. You will work on routing, switching, wireless, VPNs and security controls, support after-hours maintenance, and help document network designs and workflows while