Senior Network Engineer

We are looking for an experienced Network Engineer to support and maintain enterprise network infrastructure across multiple sites and data centres. You will work on routing, switching, firewalls, and connectivity, ensuring stable and secure network operations.

What You'll Do

• Set up, manage, and support enterprise networks (routing and switching)
• Configure and troubleshoot firewalls, VPNs, and security rules
• Monitor and improve network performance and reliability
• Troubleshoot network issues using packet analysis tools
• Work with data centres on racks, cabling, power, and connectivity
• Coordinate with telecom providers for leased lines and network circuits
• Support server and hardware integration into the network
• Keep network diagrams, records, and documentation up to date
• Follow security best practices

What You Need

• 5+ years' experience in network engineering or similar role
• Strong understanding of TCP/IP networking
• Experience with routing (e.g. BGP or similar)
• Experience with firewalls, VPNs, and network security
• Ability to troubleshoot using tools like Wireshark or tcpdump
• Experience working with data centres or telecom providers
• Good understanding of Linux or Windows systems
• Strong problem-solving and communication skills

Nice to Have

• Network or security certifications (e.g. CCNA, CCNP, or similar)
• Experience in fast-paced or high-availability environments (e.g. finance/trading)
• Experience with large-scale enterprise infrastructure
• Additional languages (Mandarin or Cantonese)