Editorial summary

The company is seeking a L3 Network Engineer on a 1-year renewable contract to provide advanced network support and incident management. The role requires expertise in troubleshooting LAN, WAN, WLAN, VPN, routing, switching, Internet connectivity, and firewall issues, performing network analysis, root cause analysis, and implementing permanent corrective actions, as well as guiding L1/L2 engineers to meet SLAs. It also involves managing network infrastructure and security initiatives. The position offers a monthly salary of 8500.

This summary is AI-generated and may contain inaccuracies. Please refer to the full job description below.

Job description

[This job https://singapore.job-q.com/jobs/detail/l3-network-engineer-1-year-renewable-iac-39737 first appeared in Job-Q.com on 23 Oct 2026]

Job Responsibilities

1. L3 Network Support & Incident Management

• Provide L3 support for complex network incidents escalated from L1/L2 teams.
• Troubleshoot LAN, WAN, WLAN, VPN, routing, switching, Internet connectivity, and firewall issues.
• Perform network analysis using logs, packet captures, monitoring tools, and diagnostic utilities.
• Lead major incident troubleshooting, conduct Root Cause Analysis (RCA), and implement permanent corrective actions.
• Provide technical guidance to L1/L2 engineers and ensure incidents are resolved within agreed SLAs.

2. Network Infrastructure & Security

• Manage and troubleshoot multi-vendor network environments, including Cisco, Fortinet, Palo Alto, Juniper, Cisco Meraki, and UniFi.
• Configure and support routers, switches, firewalls, wireless infrastructure, and VPN connectivity.
• Troubleshoot routing and switching protocols, including BGP, OSPF, VLAN, STP, VRF, and LACP.
• Manage firewall policies, NAT, security profiles, and high-availability configurations.
• Support wireless connectivity, authentication, performance, and SD-WAN where applicable.

3. Network Projects & Change Management

• Participate in network upgrades, migrations, refreshes, and infrastructure improvement projects.
• Prepare implementation and rollback plans and conduct pre- and post-change validation.
• Coordinate network changes with internal teams, vendors, and stakeholders.
• Maintain accurate network documentation, configurations, and troubleshooting procedures.

4. Problem Management & Continuous Improvement

• Take ownership of complex and recurring network issues through resolution.
• Perform RCA, identify preventive measures, and improve network reliability.
• Participate in major incident management and technical bridge calls.
• Support proactive network monitoring and service improvement initiatives.
• Any other ad-hoc duties as assigned by supervisor

Requirements

• Diploma or Degree in Information Technology, Computer Science, Networking, or a related discipline.
• 5–8+ years of network engineering experience, including strong L3 troubleshooting capabilities.
• Strong hands-on experience in enterprise routing, switching, firewalls, and network security.
• Experience with multiple vendors, preferably Cisco, Fortinet, Palo Alto, Juniper, Meraki, and/or UniFi.
• Good knowledge of TCP/IP, DNS, DHCP, NAT, VLAN, VPN, BGP, and OSPF.
• Experience with network monitoring tools, packet analysis, and ITIL Incident, Problem, and Change Management.
• CCNP, JNCIP, Fortinet, Palo Alto, or equivalent certifications are advantageous.

Interested applicants, please email your resume to Andre Chua Jing Ming

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