Senior L3 Network Engineer – Multi-Vendor & Security

Logicalis Malaysia Sdn Bhd; Singapore; On-site; SGD 80,000 - 120,000; Full time

Job summary

Logicalis Asia Pacific is seeking a skilled L3 Network Engineer to deliver advanced technical support, troubleshooting, and management of enterprise networks across multiple technologies and vendors in a Singapore-based role.

You will serve as the Level 3 escalation point, collaborating with L1/L2 teams, infrastructure, cybersecurity, vendors, and stakeholders to maintain a stable and secure network environment.

Qualifications

• Strong knowledge of TCP/IP, DNS, DHCP, NAT, VLAN, STP, QoS, VPN and network security.

Responsibilities

• L3 Network Support & Troubleshooting: provide complex escalation support for network incidents.
• Troubleshoot LAN, WAN, Internet, WLAN, VPN, routing, switching and firewall environments.
• Perform detailed network analysis using logs, captures, and monitoring tools.
• Lead troubleshooting for major incidents and perform RCA with permanent corrective actions.
• Mentor L1/L2 engineers and provide guidance on network issues.
• Manage multi-vendor network environments including Cisco, Fortinet, Palo Alto, Juniper, UniFi and Cisco Meraki.
• Configure and troubleshoot routing protocols (BGP, OSPF) and inter‑VLAN routing.
• Review firewall changes and collaborate with cybersecurity teams.

Skills

Networking

Job description

Logicalis Asia Pacific is seeking a skilled L3 Network Engineer to deliver advanced technical support, troubleshooting, and management of enterprise networks across multiple technologies and vendors in a Singapore-based role.

You will serve as the Level 3 escalation point, collaborating with L1/L2 teams, infrastructure, cybersecurity, vendors, and stakeholders to maintain a stable and secure network environment.