Case studies

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.

A matter of design (AMOD) is a web and mobile platform where users can redesign real apartments, manage subscriptions, save ideas, and buy furniture without switching between separate tools. Our task was to design and develop the full product: secure authentication, subscription and payment logic, AI-based room redesign, bookmarking, and e-commerce functionality.

Our Yojji team built Time Machine as an internal time tracking system because existing tools didn’t match our workflow. The web app allows our employees to log hours by project, add weekly comments, and separate billable from non-billable time. Managers got clear visibility into workload and performance. The main focus was on simplicity, so new team members can start tracking time in just a few clicks.

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.