Case studies

Loyal Payment is a fintech mobile app for utility bill payments. The client required a simple product that allows users to pay water, gas, electricity, and housing bills in a single interface, track a payment history, and manage various addresses. Our team designed and developed the mobile app, created a scalable structure for multiple services, and simplified payment flows to increase payment transparency and decrease manual steps.

Our team designed and developed a custom healthcare booking platform where patients can search doctors, view real-time availability, and book appointments in a few clicks. It’s a unified system that connects multiple medical institutions, handles payments, and synchronizes bookings with each clinic’s CRM. In 7 months, our client got a fully functional web application.

STB Union, a major FinTech player, partnered with Yojji to evolve from a traditional currency exchange network into a modern financial marketplace. The project aimed to develop a secure, scalable platform for multi-currency wallets, international transfers, and digital card services, using React JS, React Native, and Java to enhance STB Union’s service offerings and strengthen its position in FinTech.

Symptomatical is a symptom management system developed to help companies and schools reopen safely and proactively manage COVID-19 risks. Our team enhanced the platform with analytics tools, an admin dashboard, a secure authorization system, a dedicated landing page, and Stripe API integration. This solution supports daily health screenings, enforces safety protocols, and ensures seamless operational continuity.

Payroll is a $1.2b cloud-based solution that enables companies to manage global payroll, oversee payment cycles, and process direct transfers across countries. They approached us to build this system on their financial and legal infrastructure. Yojji led the frontend development and design and contributed to backend tasks. Within two months, users completed their first payroll transactions, and the platform continued to expand with new features.

An Australian financial company partnered with us to build a mobile investment application that allows parents to create separate accounts for their children and invest regularly. The platform supports automated payments, stock price tracking, and portfolio monitoring to accumulate capital over time. Within three weeks, we delivered a fully functional MVP with core investment logic and secure data exchange with backend systems.