Enabling Financial Inclusion: Development and Implementation of Visipay's Backend System for Users with Visual Impairments

Fintech (Financial Technology) is a technology used in the world of finance, one of which is e-wallet. However, the current adoption of fintech applications is still limited to certain user demographics, because not all features meet the needs of every user, especially those with visual impairments. Users with low vision often face challenges with lengthly application flows, difficulty using gesture-based interfaces, and the inclusion of pictorial information that screen readers cannot interpret. To overcome this problem, adjustments and modifications to the existing e-wallet are required. Visipay is an e-wallet application created to address the problems experienced by people with visual impairments. The role of the backend developer is critical in designing and maintaining the application's data processing mechanism. An agile approach using the Extreme Programming method combined with Clean Architecture is used to facilitate the development process. The backend system is tested for reliability with 400 real-time API requests in 1 minute. Of the 20 APIs created, 6 main features have been tested with a success rate of 94.14%. The Top-Up feature has a success rate of 99.52%. and the payment feature has a success rate of 99.88%.