Driver Pay Fintech Wallet

I’m building an Android-based wallet that lets drivers receive their earnings instantly and move those funds wherever they need. The core requirement is real-time payment processing—no dashboards or heavy accounting tools, just a clean, secure flow of money from my platform into each driver’s wallet... (Budget: $250 - $750 USD, Jobs: Android, Java, Kotlin, Mobile App Development, Node.js, Payment Processing, Software Architecture, Spring Boot)