Manage and verify payment transaction databases using Navicat for MySQL/PostgreSQL to ensure the success of local tax payments.

Prepare payment specification documents using MS Word and Canva, and conduct system analysis with Draw.io diagrams for functional requirement architecture in online payment integration.

Execute SIT, UAT, TO using Postman for API testing, and payment integration (H2H, QRIS, VA) with partner banks and external partners (Tokopedia, Indomaret, Alfamart, POS Indonesia).

Handle coordination of payment issues and perform local tax data reconciliation to ensure the nominal fund transfer from banks to regional treasuries is always consistent.

Provide remote technical support using TeamViewer/AnyDesk for troubleshooting and coordinating with regional government partners, while managing tasks through Trello and Redmine.

Provide application training to company partners virtually and face-to-face to ensure functional mastery before the system goes live.

Perform system analysis and prepare conceptual models of functional requirements related to applications and payments as per partner development requests.

Handle regional tax system issues, including root cause analysis, managing partner complaints, and providing sustainable solutions.

Create transaction data queries to compile accurate local government financial reports for audit requirements.

Develop websites according to client needs, starting from analysis, testing, and documentation to result presentation to ensure all functionalities are met.