System Engineer

Assuritz Infosec; Hong Kong; On-site; HKD 420,000 - 640,000; Full time

Job summary

Assuritz Infosec in Hong Kong seeks an ICT Infrastructure Engineer to build and support a full stack, ensuring reliable and secure operations across systems and applications.

The role requires 2–5 years hands-on experience and involves VM deployment on AzureStack, Windows Server administration, SQL Server management, Ubuntu/Linux, backup automation, network security, SSL management, and planning a Kubernetes migration.

Qualifications

• Hands-on ICT infrastructure experience is required.
• 2–5 years minimum.
• Experience with virtualization, cloud platforms and security.
• Knowledge of system hardening and data protection best practices.

Responsibilities

• Perform preventive maintenance to ensure system reliability and uptime.
• Respond to faults 24/7 and communicate issues to users at the site.
• Hands-on work on VMs in Datacentre and support application teams.
• Analyze and propose architectures to optimize infrastructure performance.
• Document configurations and changes for knowledge sharing.

Skills

AzureStack operations

Windows Server administration

SQL Server management

Ubuntu/Linux administration

Network security design

SSL certificate management

DevOps awareness

Ansible automation

Tools

AzureStack Hub

NSG

Load Balancer

Virtual Images

Storage systems

Group Policy Objects

OS hardening

Patching

Ansible

Job description

Job Summary

Candidate will construct a full ICT infrastructure stack and support application teams with system integration and maintenance, ensuring reliable and secure operations.

Candidate must have minimum 2–5 years of hands‑on experience.

Core Skills requirement

Candidate should have at least 5 or more skills required as stated below.

1. Configure and deploy virtual machines within AzureStack Hub Virtualisation Environment, including managing AzureStack services such as NSG, Load Balancer, Virtual Images, and Storage to support VM operations


2. Configure and administer Windows Server 2019 or 2016 environments, including Windows Domain Administration, Microsoft Failover Clustering, Windows RDS Architecture, Group Policy Objects (GPO), OS hardening, patching, and upgrading


3. Configure, upgrade, harden, and administer Microsoft SQL Server 2019, 2016, or 2017 databases.


4. Deploy and maintain Ubuntu OS and Linux‑based Virtual Appliances.


5. Configure and manage Commvault backup jobs to ensure data protection and recovery readiness


6. Design and implement network and network security solutions based on established concepts to safeguard infrastructure


7. Apply system security principles including SSL certificate management to maintain secure communications

Additional preferred competencies and qualifications

Candidate will also be planning and assisting in the upcoming system migration to the Kubernetes platform for project turnkey. The skills requirement are:

• Knowledge in DevOps operations


• Experience with Ansible automation tools

General Work Responsibilities

• Perform preventive maintenance tasks to ensure system reliability and uptime


• On standby and to respond to system fault at site 24/7 and communication with useron the fault.


• Hands‑on/ground‑level work on VMs in Datacentre


• Analyze and propose system architecture and solutions aligned with system requirements to optimize infrastructure performance


• Document system configurations, procedures, and changes to maintain accurate records and support knowledge sharing