Network Engineer

Job Responsibilities

• Implement, configure, upgrade and migrate network infrastructure, including routers, switches, firewalls and related network devices across H3C, Huawei, Cisco and other major vendors.
• Perform network operations and maintenance, including device monitoring, configuration backup, performance optimization and routine health checks.
• Troubleshoot complex network issues involving routing, switching, VPN, firewall policies, QoS and network connectivity, and perform root cause analysis to ensure timely resolution.
• Support network implementation, migration, testing and acceptance activities, including CPE, connectivity, QoS, traceroute and iPerf testing.
• Work closely with customers, project teams and overseas service providers to clarify technical requirements, resolve network incidents and provide technical solutions.
• Prepare implementation plans, testing and acceptance reports, troubleshooting records and other technical documentation. Participate in scheduled night-time maintenance, network changes and cutover activities when required.

Job Requirements

• Bachelor’s degree or above in Computer Science, Computer Networking, Telecommunications, Information Technology or a related discipline.
• 5+ years of professional experience in network engineering, implementation, operations and maintenance, or technical support.
• Strong hands-on experience with H3C, Huawei, Cisco and/or Juniper network equipment.
• Solid knowledge of routing and switching technologies, including OSPF, BGP, VLAN, STP, VPN and QoS.
• Proven experience in network deployment, equipment replacement, migration, configuration, testing and troubleshooting.
• Experience in telecommunications networks, international customers, overseas projects or cross-border network connectivity is highly desirable.
• Professional certifications such as CCIE, CCDE, H3CSE, HCIP or equivalent are highly desirable.
• Fluent in Cantonese and Mandarin Chinese.
• Strong problem-solving, communication and teamwork skills, with the ability to work independently and under pressure.
• Willingness to travel and participate in occasional night-time maintenance or network cutover activities when required.