Senior System Administrator

Job Description • Perform operations and maintenance of server and storage hardware, including installation, configuration, health monitoring, fault handling, firmware upgrades, and lifecycle management. • Administer and maintain Windows and Linux operating systems, ensuring system availability, performance, stability, and compliance with security baselines. • Perform platform-level administration of middleware and database systems, including installation, configuration, standardization, routine maintenance, monitoring, and patching, and coordinate with application teams to support system connectivity and integration requirements. • Administer and support virtualization platforms such as VMware and Hyper-V, as well as Virtual Desktop Infrastructure (VDI) platforms including Horizon View, covering provisioning, configuration, monitoring, and troubleshooting. • Administer and maintain enterprise backup systems, including backup configuration, scheduling, monitoring, capacity management, and restoration support to ensure data protection and recoverability. • Perform capacity management, baseline management, and regular infrastructure health checks, identify potential risks, and support proactive remediation activities. • Perform basic Database administrator role for Oracle, SQL Server and MySql, such as installation, patching and fine tuning etc. proactive remediation activities. • Respond to infrastructure-related incidents and service degradation, perform incident investigation and root cause analysis (RCA), and track corrective and preventive actions to closure. • Participate in system and platform changes, upgrades, and patching activities, strictly following change management, approval, implementation, and rollback procedures. • Develop and maintain automation scripts and tools to improve operational efficiency, reduce manual effort, and enhance system reliability. • Develop and maintain technical documentation, including architecture diagrams, configuration standards, standard operating procedures (SOPs), and emergency response plans, ensuring operational readiness and audit compliance. • Support internal audits, regulatory inspections, and compliance reviews by providing system operation records, configuration evidence, patching status, and technical documentation. • Participate in on-call rotation and provide 7×24 production support as required. Job Requirements • Bachelor’s degree or above in Computer Science, Information Technology, or a related discipline. • Minimum 5 years of experience in system administration or infrastructure operations, preferably within a banking, financial services, or large-scale enterprise environment. • Strong sense of ownership, risk awareness, and the ability to operate in a highly regulated production environment. • Experience with server and storage hardware, Windows and Linux system administration. • Experience in middleware and database platform support. • Working knowledge of virtualization platforms (VMware, Hyper-V) and VDI (e.g. Horizon View). • Experience with enterprise backup systems, capacity management, and system health checks. • Familiarity with incident handling, RCA, change management, and basic automation or scripting. • Professional written and verbal communication skills in both English and Chinese, as the role requires regular communication and coordination with Chinese-speaking counterparts at the Bank’s Head Office on IT operations, technical issues and related matters. • Strong adherence to operational procedures, documentation standards, and audit requirements in a regulated environment. • Awareness of system security controls, privileged access management, vulnerability management, and operational logging practices. • Ability to work accurately under pressure while minimizing operational and compliance risks. • Strong communication and coordination skills, with the ability to work effectively with cross-functional teams and external vendors. • Good analytical and problem-solving skills, with the ability to document findings and drive corrective actions. • Self-motivated, detail-oriented, and committed to continuous learning and continuous improvement.