Infrastructure_Network security_Up to 90K

What you’ll do:

• Manage and secure the company’s network (firewalls, VPN, WAF, Proxy, EDR, DDoS protection, etc.)
• Install, monitor, troubleshoot and upgrade network & security systems
• Regular rule reviews, vulnerability scans and audits
• Fix network and security issues (sometimes outside office hours)
• Write and update technical documents and policies
• Guide and train junior team members
• Work with other IT teams to keep everything secure

What you need:

• Bachelor’s degree in IT / Computer Science or related
• 3–5 years hands-on experience in network security and operations
• Strong with firewalls, VPN, routing/switching (TCP/UDP, OSPF, BGP, etc.)
• Used major vendors: Fortinet, Palo Alto, Checkpoint, Zscaler, Cisco, Huawei, etc.
• Experience with tools like Wireshark, SolarWinds is a plus
• Bonus: Python/Ansible automation, cloud (AWS/Azure/Alibaba), ITIL
• Bonus: Certifications (CCNA/CCNP, CISSP, CEH, etc.)
• Fluent in English + Cantonese + Mandarin (spoken & written)
• Good problem-solver, team player, can work under pressure