Selected Work

Developed the backend for a digital transaction application that handles routine bill payments (PPOB), bank transfers, and real-time balance transfers between users through an integrated system.

Responsible for developing and modernizing the backend system for applications on Electronic Data Capture (EDC) devices. Focused on enhancing security and server-side payment processing speed.

Developed an automation engine that schedules and manages thousands of transaction tasks across payment device networks to improve daily operational efficiency.

Maintained a specialized integration system for national electricity payments. Ensured access reliability and performance stability in serving public utility transactions.