Yuliia B. developed a new Mobile Payments in Tanzanian Shillings (TZS) method for the openfintechio/openfintech repository, enabling mobile transactions in local currency and broadening payment acceptance for Tanzanian users. She focused on backend development and API integration, implementing robust data management practices to ensure reliable processing and maintainability. Her work included refining the Startbutton integration, which improved the overall reliability of the payment flow. By localizing currency handling and streamlining the checkout process, Yuliia laid the foundation for increased transaction potential in Tanzania. The project demonstrated depth in payment method integration and thoughtful backend architecture using JSON.