OS Infrastructure Engineer (Linux/Unix/Windows)

Job Responsibilities:
. Manage, monitor and troubleshoot Linux/Unix and Windows server environments across regional subsidiaries.
. Perform OS patching, configuration updates, health checks, system monitoring and operational maintenance activities.
. Analyze infrastructure issues and support incident troubleshooting across server, virtualization, storage, backup and middleware environments.
. Support daily operational activities to ensure stable infrastructure services across overseas entities.
. Coordinate with local IT teams, vendors and regional stakeholders during incidents, maintenance activities and operational issues.
. Support regional subsidiaries during infrastructure issues, troubleshooting activities, system stabilization and operational improvement initiatives.
. Participate in infrastructure deployment, migration, upgrade, DR/BCP testing and project support activities when required.
. Monitor infrastructure performance, system availability, backup status and operational health.
. Support enterprise and banking systems hosted on physical, virtualized or cloud platforms.
. Prepare operational reports, troubleshooting summaries, maintenance documentation and infrastructure analysis reports.
. Travel to overseas subsidiaries when required to support operational stabilization, troubleshooting and infrastructure activities.

Requirements:
. Degree/Diploma in Computer Science, Information Technology or related field.
. 3+ years of experience in Linux/Unix/Windows server administration.
. Hands-on experience with VMware, Hyper-V or other virtualization technologies.
. Experience in OS troubleshooting, patching, backup and system monitoring.
. Basic scripting or automation knowledge (Bash, PowerShell, Python, ShellScript, etc.).
. Basic understanding of infrastructure architecture including OS, network, storage, database and middleware interactions.
. Experience in banking or financial services is an advantage.
. Strong troubleshooting, analytical and communication skills.
. Willingness to travel frequently within Southeast Asia (Indonesia, Vietnam, Cambodia).