Job Description

• Prepare servers on physical and cloud (Azure) Linux/Unix environments to install and configure Oracle ERP applications and Oracle Database, SQL Server, and verify system functionality after deployment. Apply patches and resolve technical issues by coordinating with Oracle Support through My Oracle Support (Meta Link). - Perform Oracle ERP application and Oracle Database Backup, and cloning for system refresh and environment setup. Provide technical support and troubleshooting for Oracle ERP applications, Oracle Database, and Windows client users. Monitor system performance and perform maintenance and performance tuning across DEV, SIT, UAT, and Production environments. Develop and maintain AutoSys batch jobs and Shell scripting to automate operational processes.

Job Description

• Prepare servers on Linux/Unix environments to install and configure Oracle ERP applications and Oracle Database, and verify system functionality after deployment. - Apply patches and resolve technical issues by coordinating with Oracle Support through My Oracle Support (Meta Link). - Perform Oracle ERP application and Oracle Database cloning for system refresh and environment setup. - Provide technical support and troubleshooting for Oracle ERP applications, Oracle Database, and Windows client users. - Monitor system performance and perform maintenance and performance tuning across DEV, SIT, UAT, and Production environments. - Develop and maintain AutoSys jobs using Shell scripting to automate operational processes. - Conduct training sessions for client system administrators on the Oracle ERP system administration.

Job Description

• (On-site service for Advanced Info Service Public Company Limited (AIS)) - Provided on-site technical support for the AIS 3G implementation project, responsible for system deployment, configuration, testing, and performance tuning of AIS system software. - Installed, configured, and maintained operating systems including Red Hat Enterprise Linux 5/6, SUSE Linux 9, and Solaris 10. - Deployed and administered virtualization platforms including VMware, CloudStack, Equinox, and Proxmox. - Installed and configured middleware and application platforms such as HAProxy, JBoss, Apache Hadoop, Apache Tomcat, and Oracle Database 11g. - Performed system maintenance, monitoring, log analysis, performance testing, and stability testing to ensure system reliability. - Supported network infrastructure tasks including site-to-site connectivity, firewall configuration, and system integration. - Prepared technical documentation, including installation guides, configuration documentation, and operational procedures for handover to the operations team for production deployment.

Job Description

• Provided IT support for approximately 50 users, including installation, configuration, and troubleshooting of hardware and software on servers, desktop PCs, and laptops. - Administered and maintained Windows Server 2003 infrastructure, ensuring system stability and availability. - Managed and monitored File Server, Antivirus systems, and Backup Server to ensure data protection and system security. - Maintained network infrastructure, including routers, switches, hubs, wireless access points, and firewall devices. - Managed Active Directory (AD) for user authentication, authorization, and Group Policy administration. - Controlled and managed hardware inventory and software license compliance. - Coordinated with external vendors for hardware, software, and technical support services.