Payments, ticketing, and shared-expense management.
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JoJoPay is a multi-purpose payment and service application that includes ticket booking, QR-code-based local-bus tickets, and a shared-expense workflow with scheduled payment reminders.
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Engineered the backend workflow for Split-Share, modeling the full shared-expense lifecycle from bill creation and participant allocation through payment-status tracking and manual settlement confirmation.
Designed and implemented a cron-driven reminder workflow that identified outstanding balances and delivered Firebase Cloud Messaging notifications until a bill creator confirmed settlement.
Established the application's initial project structure and configuration, providing the technical foundation for subsequent feature development and deployment.
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