Senior Windows & Linux System Engineer — Hybrid Infra

Livi Bank Limited; Hong Kong; On-site; HKD 420,000 - 540,000; Full time

Job summary

Livi Bank Limited in Hong Kong is seeking an experienced Systems Administrator to support, maintain, and enhance the bank's server and infrastructure platforms across data centre, on‑prem and cloud environments. You will manage Windows Server, Active Directory, DNS/DHCP, Exchange, and patch management, while also supporting Linux servers, virtualization, storage, and DR capabilities.

Strong bilingual English/Cantonese skills are required.

Qualifications

• Bachelor's degree in Computer Science, Information Technology, or related discipline.
• Microsoft certifications are preferred.
• Certifications in Linux, Cloud, Cybersecurity, or DevOps technologies would be an advantage.
• Minimum 5 years of relevant experience in system administration and infrastructure support.
• Experience managing Windows Server platforms (AD, GPO, Exchange, WSUS).
• Experience with Linux server administration (e.g. Red Hat) in production environments.

Responsibilities

• Provide day-to-day operational support for Windows and Linux server infrastructure.
• Manage and maintain Windows Server, Active Directory, DNS, DHCP, Group Policy, and related services.
• Administer Exchange, WSUS, and server patch management processes.
• Support data centre infrastructure, including servers, storage, and backup solutions.
• Perform system monitoring, troubleshooting, and root cause analysis.
• Execute infrastructure changes, upgrades, patching, and technology refresh.
• Support hybrid connectivity between on-premises and cloud environments.
• Collaborate with IT security on vulnerability remediation and compliance initiatives.
• Maintain infrastructure documentation and procedures.
• Participate in after-hours maintenance and on-call support.

Skills

Windows Server

Active Directory

Linux

Scripting (Python)

Shell scripting

Virtualisation

Networking basics

English & Cantonese

Security/compliance

Cloud knowledge

Education

Bachelor's in CS/IT

Tools

Exchange Online

Entra ID

Ansible

Terraform

Job description

Livi Bank Limited in Hong Kong is seeking an experienced Systems Administrator to support, maintain, and enhance the bank's server and infrastructure platforms across data centre, on‑prem and cloud environments. You will manage Windows Server, Active Directory, DNS/DHCP, Exchange, and patch management, while also supporting Linux servers, virtualization, storage, and DR capabilities.

Strong bilingual English/Cantonese skills are required.