Avunja Agent — Digital Utility & Income Platform
Mobile first fintech platform enabling youth across Africa to generate income through utility bill payments, airtime purchases, and micro loan services powered by secure M-Pesa integration.
Overview
Avunja Agent is a production grade mobile fintech platform designed to empower youth across Africa by enabling self employment through digital financial services. The platform allows agents to earn income by facilitating utility bill payments, airtime purchases, insurance, healthcare and micro loan services through secure mobile workflows. Built with Flutter on the mobile layer and powered by a Node.js backend infrastructure, the system integrates M-Pesa payment gateways to ensure reliable, real-time transaction processing in mobile-first economies. The application supports agent onboarding, earnings tracking, transaction history, and digital wallet interactions within a secure and scalable architecture. Avunja aims to reduce dependency on traditional employment structures by creating accessible digital income opportunities powered entirely by mobile technology.
Tech Stack
Role & Contribution
Owned the mobile application architecture and development, leading feature implementation, payment integrations, and performance optimization across the Flutter based application.
Key responsibilities included:
- Architecting and developing the Flutter mobile application for Android and iOS
- Integrating secure M-Pesa payment gateway workflows for utility and airtime transactions
- Implementing transaction state management and error handling mechanisms for financial operations
- Optimizing performance for low bandwidth network environments
- Designing scalable mobile side architecture aligned with Node.js backend APIs
- Ensuring secure handling of financial data and transaction histories
- Collaborating with backend teams to maintain transaction reliability and data consistency
- Managing release cycles and production deployments
Technical Challenges
The primary technical challenge involved integrating M-Pesa payment services while maintaining transactional reliability in network-constrained environments. Financial workflows required robust error handling, retry mechanisms, and consistent state synchronization between the Flutter mobile layer and the Node.js backend. Ensuring secure transaction processing, preventing duplicate payments, and maintaining performance across varying device capabilities demanded careful architectural planning and rigorous testing.