Network Infrastructure Engineer

Job Description:
Resident Engineer – Network Infrastructure (Migration)

Overview

We are seeking a Resident Engineer – Network Infrastructure to support network migration and ongoing operational activities for enterprise environments in Hong Kong.

The ideal candidate will have strong hands-on experience in network implementation, migration, and Day 1 / Day 2 support, and be comfortable working in a customer-facing, on-site role.
Fluency in Cantonese and English is mandatory, as this role involves close collaboration with local stakeholders and regional teams.

Key Responsibilities

Migration & Implementation (Day 1 Activities):
Support network infrastructure migration projects, including planning, implementation, and cutover activities
Perform installation, configuration, and commissioning of network devices (routers, switches, firewalls, wireless)
Execute network changes according to approved design and change management processes
Conduct system testing, validation, and handover documentation

Operations & Support (Day 2 Activities):
Provide Day 2 operational support, including monitoring, troubleshooting, and incident resolution
Perform root cause analysis (RCA) for network issues and implement corrective actions
Support patching, upgrades, and configuration changes
Maintain network documentation, diagrams, and operational runbooks

Customer & Stakeholder Engagement:
Act as on-site technical point of contact for customers
Work closely with client IT teams, vendors, and remote engineering teams
Provide clear technical updates and reports in both Cantonese and English

Technical Skills & Experience

Required:
Hands-on experience with enterprise network infrastructure
Solid understanding of LAN, WAN, WLAN, TCP/IP, routing & switching
Experience supporting network migration projects
Familiarity with Day 1 (implementation) and Day 2 (operations/support) activities

Experience with at least one major vendor:
Cisco (Switching, Routing, Firewalls)
Fortinet / Palo Alto / Check Point (added advantage)
Strong troubleshooting skills in production environments

Good to Have:
Experience with data center or cloud-connected networks
Knowledge of ITIL-based operational processes
Relevant certifications (CCIE)

Language Requirements
Cantonese – Fluent (mandatory)
English – Fluent (mandatory)
Mandarin is an added advantage

Soft Skills
Strong communication and customer-facing skills
Able to work independently in a resident/on-site environment
Detail-oriented, responsible, and able to work under change windows and project timelines
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