Senior DBA & Linux Systems Manager (Hybrid)

TransUnion; Hong Kong; Hybrid; HKD 300,000 - 540,000; Full time

Job summary

TransUnion Hong Kong is seeking a Manager I, Infrastructure Engineering and Provisioning on a hybrid basis. The role focuses on maintaining and sizing large-scale RDBMS environments across Windows and Linux servers, with emphasis on performance tuning and security.

You will support a multi‑vendor hardware and software stack, including virtualization, and ensure production readiness with documented processes.

Qualifications

• Minimum 5 years of DBA with hands‑on experience in system & database sizing, design, tuning, DB reorganization, capacity planning and problem analysis.
• Minimum 5 years of Linux/Unix System Admin role.
• Solid knowledge in Database Administration (e.g. Informix, Oracle, SQL Server, MySQL, PostgreSQL, etc.)
• Working experience in Unix/Linux and Windows system administration preferably in virtualized environment
• Experience with virtualization technologies such as VMware
• Proficiency in English and Cantonese both written and spoken

Responsibilities

• System and security maintenance of RDBMS (SQL Server, Oracle, PostgreSQL & Informix)
• Perform Windows and Linux systems and database infrastructure tasks
• Monitor and respond to security and incident management
• Manage ticketing system on Remedy
• Maintain the database and application systems in a healthy status
• Provide professional insights to the application support team for development and maintenance work
• Perform installation, configuration, patching, sizing, design and tuning of databases
• Deploy and evaluate new application systems and IT technologies
• Execute and maintain annual BC/DR drill tests
• Ensure documentation for all systems is up to date

Skills

DBA experience

Linux/Unix admin

English & Cantonese

VMware

Cloud AWS

Education

Degree in IT/CS

Tools

Informix

Oracle

SQL Server

MySQL

PostgreSQL

Redhat

Jboss

Tomcat

Apache

Job description

TransUnion Hong Kong is seeking a Manager I, Infrastructure Engineering and Provisioning on a hybrid basis. The role focuses on maintaining and sizing large-scale RDBMS environments across Windows and Linux servers, with emphasis on performance tuning and security.

You will support a multi‑vendor hardware and software stack, including virtualization, and ensure production readiness with documented processes.