L2 Network Engineer

PRIMESTAFF MANAGEMENT SERVICES PTE LTD; Singapore; On-site; SGD 80,000 - 100,000; Full time

Job summary

A technology staffing agency is seeking a skilled Network Engineer (L2) in Singapore. This role involves designing, configuring, and troubleshooting complex data center networks, requiring a minimum of 5 years in Cisco ACI and strong expertise in routing protocols. If you have a passion for advanced networking and support, this opportunity offers a chance to work in a dynamic environment.

Qualifications

• Minimum 5 years of hands-on experience in Cisco ACI configuration and troubleshooting.
• Strong knowledge of routing protocols (OSPF, BGP) and switching technologies.
• Experience managing NAC, WLC, and F5 load balancers.

Responsibilities

• Configure, manage, and troubleshoot Cisco ACI fabrics in production.
• Design and implement advanced routing and switching solutions.
• Participate in network architecture reviews and performance tuning.

Skills

Cisco ACI configuration

Advanced routing (OSPF, BGP)

Switching technology (Layer 2/3)

Network Access Control (NAC)

Wireless LAN Controllers (WLC)

F5 load balancers

Root cause analysis (RCA)

Job description

Role Summary

We are looking for a skilled Network Engineer (L2) with strong expertise in Cisco ACI and advanced routing/switching. The successful candidate will be responsible for designing, configuring, and troubleshooting complex data center network environments, while supporting both core and access network infrastructure. This role requires hands-on technical depth and the ability to provide escalation support to L1 engineers.

Responsibilities

• Configure, manage, and troubleshoot Cisco ACI fabrics in production environments.
• Design, implement, and optimize advanced routing (OSPF, BGP) and switching solutions.
• Manage Network Access Control (NAC) systems and Wireless LAN Controllers (WLC).
• Configure and maintain F5 load balancers for application delivery.
• Provide root cause analysis (RCA) for escalated network incidents and service disruptions.
• Participate in network architecture reviews, capacity planning, and performance tuning.
• Maintain up-to-date documentation of network configurations, diagrams, and change records.
• Ensure compliance with network security policies, standards, and best practices.

Qualifications

• Min 5 years of hands-on experience in Cisco ACI configuration and troubleshooting.
• Strong knowledge of routing protocols (OSPF, BGP) and switching technologies (Layer 2/3).
• Experience managing NAC, WLC, and F5 load balancers.
• Proven ability to handle advanced Layer 2/3 network troubleshooting and escalation support.