Tanapon Kajonkinmala

Provide first and second-level support for systems and applications used by prepaid customers using Oracle SQL/PLSQL. Troubleshoot incidents, analyze root causes, and communicate solutions to users. Monitor and maintain systems for high availability and stability. Configure systems per business needs, including fixing integration and configuration issues. Support business teams (Marketing, Customer Service, Dev) by querying and analyzing data. Collaborate closely with developers and end-users to enhance application functionality.

Supported in-house applications, handling user requests and configuration changes via SQL Server and Oracle database. Tracked and investigated transactional data issues in collaboration with the customer service team. Gathered requirements, created user journeys, and conducted system testing with vendors. Developed tools and automations using Excel VBA macros to support brewery operations. Built APIs using Node.js (Express) and integrated with external vendor applications.

Investigated and resolved issues, coordinated with vendors, and handled deployments on Linux servers. Created SQL-based reports and developed automation using Excel VBA macros. Developed internal tools for the Hong Kong branch using PowerApps, Power Automate, and SharePoint.

Responsible to develop program using in C programing , Linux command line, SOAP API, XML and SQL. Responsible to design system architecture and develop programs until supporting, testing and delivered technical documents. System impact analysis when changing the system. Manage program logic documents for migrate to a new system.

Developed server applications for Vietnam clients using C programming on AIX/Linux platforms. Handled development, testing, and change-controlled code implementations. Provided technical support and participated in system design and operations.