System Engineer

Job Responsibilities

• Deploy, configure, and continuously optimize AD, DNS, Exchange, virtualization platforms, servers, storage, networking, databases, backup systems, and security systems.
• Establish maintenance standards and baseline configurations, and maintain version-controlled technical documentation.
• Lead system upgrades, patch management, and performance tuning, deliver improvement reports, and enhance platform efficiency.
• Implement system monitoring, routine maintenance, and disaster recovery drills, develop emergency response plans, and ensure high availability of infrastructure.
• Independently troubleshoot faults and produce fault reports, and coordinate with vendors to close equipment issues.
• Regularly generate task lists and operational reports to support daily management.
• Achieve KPIs and meet SLA requirements.
• Provide technical support for hardware replacement in on-premises data centers when needed.
• Provide support for emergency incidents and off-hours responses as needed.
• Complete other technical tasks assigned by management.

Job Requirements

• Diploma or higher in Computer Science, Information Technology, or a related discipline.
• At least 13 years of infrastructure support and management experience, including capacity planning and full lifecycle management.
• Hands-on experience with enterprise-grade equipment such as switches, firewalls, and servers.
• Proficient in Windows Server 2016/2022, Active Directory (AD), and virtualization platforms, with proven hands-on experience in failover clustering, infrastructure upgrades/migrations, and patch management.
• Ability to independently deploy monitoring systems, complete inspections, configure alerts, and perform fault analysis.
• Good written and spoken communication skills in both English and Cantonese.
• Strong cross-team collaboration skills and experience in vendor communication.