Network Engineer L2

Two95 International; Singapore; On-site; SGD 60,000 - 80,000; Full time

Job summary

A leading Singaporean tech company is seeking a Network L2 Engineer to manage and optimize enterprise network infrastructure. The role includes advanced troubleshooting, implementing network changes, and ensuring high availability across LAN, WAN, and SD-WAN environments. Ideal candidates will possess strong hands-on experience in network operations and routing technologies, as well as familiarity with NAC solutions and network security best practices. Competitive salary and opportunities for growth offered.

Qualifications

• Strong hands-on experience in enterprise network environments.
• Proficiency in routing and switching technologies (Cisco, Aruba, Juniper).
• Experience with network monitoring and ticketing tools.

Responsibilities

• Perform L2-level support for network operations, ensuring uptime and reliability.
• Troubleshoot routing and switching issues using OSPF, BGP, and other protocols.
• Support enterprise security infrastructure including firewalls and NAC solutions.

Skills

LAN/WAN/SD-WAN operations

Routing and switching technologies

NAC solutions

Wi-Fi infrastructure knowledge

Packet analysis

Firewall concepts

Network monitoring tools

L2/L3 protocols

Enterprise firewalls

Data center technologies

ITIL processes

Education

CCNA / CCNP Certification

Tools

SolarWinds

WhatsUp Gold

Job description

The Network L2 Engineer will be responsible for supporting, managing, and optimizing enterprise network infrastructure across LAN, WAN, and SD‑WAN environments. The role involves handling advanced troubleshooting, implementing network changes, ensuring high availability, and collaborating with cross‑functional teams to maintain a secure and resilient network.

Responsibilities

• Perform L2‑level support for LAN, WAN, and SD‑WAN operations, ensuring network uptime, reliability, and performance.
• Troubleshoot and resolve issues related to routing and switching technologies including OSPF, BGP, EIGRP, STP, VLANs, VRRP/HSRP, and other L2/L3 protocols.
• Provide 2nd‑tier support for escalated network and firewall incidents across enterprise environments.
• Diagnose and resolve cloud connectivity and network‑related issues, ensuring minimum downtime and high‑quality service delivery.
• Support enterprise security infrastructure including firewalls, security appliances, and NAC (Network Access Control) solutions.
• Manage NAC operations such as device onboarding, authentication, profiling, and policy enforcement.
• Ensure compliance with network security standards, configuration baselines, and audit requirements.
• Participate in firewall upgrades, rule reviews, and configuration changes.
• Configure, manage, and troubleshoot Wi‑Fi infrastructure, including wireless controllers, access points, RF optimization, and end‑user connectivity issues.
• Execute network changes as per ITIL processes, covering change requests, incident handling, and problem management.
• Work closely with L1 and L3 teams to ensure efficient escalation, resolution, and closure of incidents.
• Monitor network performance and health using tools such as SolarWinds, WhatsUp Gold, or similar platforms.
• Maintain updated network documentation, diagrams, configuration backups, inventory, and knowledge base articles.
• Assist in network upgrades, migrations, and technology refresh projects across firewalls, routers, core/distribution/access switches, and data center platforms.
• Support modernization initiatives involving Cisco Nexus, ACI, cloud networking, and other emerging technologies.
• Collaborate with cross‑functional teams to improve network performance, scalability, and security posture.

Skill Set

• Strong hands‑on experience in LAN/WAN/SD‑WAN operations.
• Proficiency in routing and switching technologies (Cisco, Aruba, Juniper preferred).
• Experience working with NAC solutions such as Cisco ISE, Aruba ClearPass, or FortiNAC.
• Knowledge of Wi‑Fi infrastructure, RF behavior, WLAN controllers, and enterprise wireless deployments.
• Ability to analyze packet captures and interpret system/network logs for troubleshooting.
• Good understanding of firewall concepts and network security best practices.
• Experience with network monitoring and ticketing tools.
• Solid understanding of L2/L3 protocols (OSPF, BGP, EIGRP, STP, HSRP/VRRP, VLANs).
• Experience with enterprise firewalls, switching (core/distribution/access), and routers.
• Exposure to data center technologies including Cisco Nexus and ACI.
• Familiarity with ITIL processes for change, incident, and problem management.

Preferred Skills & Certifications

• Strong analytical and problem‑solving abilities.
• Excellent communication and documentation skills.
• Ability to work under pressure and manage multiple priorities.
• Team player with proactive attitude.
• CCNA / CCNP (Routing &uencia or Enterprise).