Senior System Administrator

Bank of China; Singapore; On-site; SGD 70,000 - 120,000; Full time

Job summary

Bank of China Singapore is seeking a senior IT infrastructure administrator to oversee server/storage operations and OS security baselines. The role requires strong ownership mindset and experience in regulated environments.

You will coordinate with engineering teams to support middleware, databases, and virtualization platforms while maintaining backups and RCA processes. The position involves on‑site responsibilities, 24/7 on‑call readiness, and a focus on documentation and automation to

Qualifications

• Bachelor’s degree in Computer Science, Information Technology, or equivalent.
• Minimum 5 years’ experience in system administration or infra operations in regulated enterprise or banking environment.
• Strong ownership, risk awareness, and adherence to security baselines.
• Experience with Windows and Linux administration, server hardware, and storage.
• Familiarity with incident handling, RCA, change management, and automation basics.

Responsibilities

• Perform operations and maintenance of server and storage hardware.
• Administer Windows and Linux OS for reliability and security baselines.
• Manage middleware and database platform installation, configuration, patching.
• Administer virtualization and VDI platforms (VMware, Hyper‑V, Horizon View).
• Maintain enterprise backups, scheduling, monitoring and restoration.
• Conduct capacity and baseline management plus health checks.
• Perform basic DBA tasks for Oracle, SQL Server, MySQL.
• Respond to incidents, RCA, and track corrective actions.
• Participate in changes, upgrades, patching with proper change control.
• Develop automation scripts and documentation.

Skills

Server & Storage

Windows/LinuxAdmin

Middleware & DB

VMware/Hyper-V/VDI

Backup & Recovery

Automation/Scripting

Change Management

Incident RCA

EN/CN Communication

Education

Bachelor's degree in CS/IT

Tools

VMware

Hyper-V

Horizon View

Oracle

SQL Server

MySQL

Job description

Job Description

1. Perform operations and maintenance of server and storage hardware, including installation, configuration, health monitoring, fault handling, firmware upgrades, and lifecycle management.
2. Administer and maintain Windows and Linux operating systems, ensuring system availability, performance, stability, and compliance with security baselines.
3. 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.
4. 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.
5. Administer and maintain enterprise backup systems, including backup configuration, scheduling, monitoring, capacity management, and restoration support to ensure data protection and recoverability.
6. Perform capacity management, baseline management, and regular infrastructure health checks, identify potential risks, and support proactive remediation activities.
7. Perform basic Database administrator role for Oracle, SQL Server and MySql, such as installation, patching and fine tuning etc. proactive remediation activities.
8. Respond to infrastructure-related incidents and service degradation, perform incident investigation and root cause analysis (RCA), and track corrective and preventive actions to closure.
9. Participate in system and platform changes, upgrades, and patching activities, strictly following change management, approval, implementation, and rollback procedures.
10. Develop and maintain automation scripts and tools to improve operational efficiency, reduce manual effort, and enhance system reliability.
11. Develop and maintain technical documentation, including architecture diagrams, configuration standards, standard operating procedures (SOPs), and emergency response plans, ensuring operational readiness and audit compliance.
12. Support internal audits, regulatory inspections, and compliance reviews by providing system operation records, configuration evidence, patching status, and technical documentation.
13. 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.