About this role
Job Summary
We are seeking an experienced L2/L3 Network Engineer to manage, support, and optimize enterprise network infrastructure in Taiwan. The ideal candidate should have strong hands-on experience with routing, switching, firewalls, WAN technologies, and network troubleshooting in enterprise and data center environments.
Key Responsibilities
• Provide L2/L3 support for enterprise network infrastructure.
• Configure, maintain, and troubleshoot routers, switches, firewalls, wireless controllers, and VPN solutions.
• Monitor network performance and ensure maximum availability and reliability.
• Diagnose and resolve complex network incidents, performing root cause analysis for recurring issues.
• Implement network changes, upgrades, and migrations with minimal downtime.
• Configure and troubleshoot routing protocols such as OSPF, BGP, EIGRP, and static routing.
• Configure VLANs, STP, EtherChannel, QoS, ACLs, NAT, DNS, DHCP, and VPN technologies.
• Support LAN, WAN, SD-WAN, MPLS, and wireless network environments.
• Perform firewall configuration and troubleshooting using Fortinet, Palo Alto, Cisco ASA, or Check Point.
• Support data center networking, structured cabling, rack & stack, and hardware replacement.
• Coordinate with ISPs, vendors, and cross-functional teams to resolve network issues.
• Create and maintain network documentation, topology diagrams, and standard operating procedures.
• Participate in planned maintenance activities and provide on-call support when required.
Required Skills
• Strong knowledge of TCP/IP, IPv4/IPv6, VLANs, STP, RSTP, MSTP, HSRP, VRRP, QoS, ACLs, NAT, DNS, DHCP, VPN, MPLS, and SD-WAN.
• Hands-on experience with Cisco Catalyst/Nexus, Juniper, Aruba, Fortinet, Palo Alto, Huawei, or similar enterprise networking platforms.
• Experience with routing protocols including OSPF, BGP, and EIGRP.
• Strong understanding of firewall policies, IPS/IDS, and network security best practices.
• Experience with network monitoring tools such as SolarWinds, PRTG, Nagios, Zabbix, or similar.
• Knowledge of cloud networking (AWS, Azure, or Google Cloud) is an advantage.
• Familiarity with ITIL processes and ticketing tools such as ServiceNow, Jira, or Remedy.
Experience
• L2: 3–5 years of enterprise networking experience.
• L3: 5–8+ years of experience in enterprise/data center network engineering.
Certifications (Preferred)
• CCNA / CCNP Enterprise
• Fortinet NSE
• Palo Alto PCNSA / PCNSE
• JNCIA / JNCIS
• Aruba Certified Professional
• ITIL Foundation (Preferred)
Education
• Bachelor's degree in Computer Science, Information Technology, Electronics, or a related field.
Language Requirements
• English – Professional working proficiency.
• Mandarin Chinese – Preferred.
Preferred Qualities
• Strong troubleshooting and analytical skills.
• Ability to work independently in a customer-facing environment.
• Excellent communication and documentation skills.
• Willingness to travel within Taiwan, if required.