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AMuhammad Aufa / FdxLab
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Digital Payments2024-03 — Present

Bayaraja

Customer-facing digital payment platform with transaction workflows and backend integrations.

Mobile Developer · PT Kinarya Utama Teknik

FlutterREST APIs
Bayaraja payment menu showing Saldo and Koin BayarAja balances
BayarAja promotional banner showing mobile payment, bill-payment, and mobile top-up screens.

Overview

Bayaraja is a digital payment (PPOB) platform: mobile credit and data top-ups, PLN electricity tokens, and bank transfers, backed by an in-app Saldo balance plus a BayarAja Koin loyalty balance. Payment is settled through cash, QRIS, or bank virtual accounts, with step-by-step instructions carried through to confirmation.

Responsibilities

Feature implementation, API integration, production debugging, and release support for the payment and top-up flows.

Architecture

Mobile client
REST API integration
Backend services
Database

Gallery

Bayaraja sign-in screen

Bayaraja sign-in screen

Bank transfer form with source, destination bank, and amount

Bank transfer form with source, destination bank, and amount

Mobile credit (pulsa) top-up screen

Mobile credit (pulsa) top-up screen

PLN electricity bill payment screen

PLN electricity bill payment screen

Payment detail with service, promo pricing, and total

Payment detail with service, promo pricing, and total

Payment method selection: cash, QRIS, and bank virtual accounts

Payment method selection: cash, QRIS, and bank virtual accounts

Step-by-step payment instructions

Step-by-step payment instructions

Bayaraja app icon