STB Union — on a Mission to Make Finances Convenient for Everyone
client
STB
Union
STB Union
industry
Fintech
platform
Web & Mobile
5 years
Duration
6 employees
Team
REQUEST
Develop multicurrency wallets, enable international transfers, and support digital card usage to expand the platform.
CHAllENGE
The platform handled large transaction volumes and strict security requirements. Our responsibility was limited to the frontend layer. We had to design a scalable, secure client-side architecture that correctly reflected complex server-side logic, integrated with legacy systems, and met FinTech compliance standards.
OUR SOLUTION
We built and evolved the frontend in stages. Our team started with international money transfers from Israel through existing operators. As the platform grew, we expanded the interface to support full online banking flows, including multi-currency wallets and VISA debit cards for payments, transfers, and online purchases.
Our solutions
Transition to Web and Mobile Platforms
We have created a full-cycle financial services platform using React JS for responsive web and React Native for mobile applications. This makes STB Union accessible on different devices with a seamless user experience.
Robust Java Backend
We conducted front-end development with a robust Java backend to ensure scalability and efficiency. This foundation allowed the platform to process large volumes of transactions securely and reliably.
Comprehensive User Experience (UX) Research
Thorough UX research into the needs and preferences of users was necessary. This drove our design and development decisions so users find the platform intuitive.
Seamless Integration with Legacy Systems
Integration with legacy systems had to be seamless in view of service continuity and the avoidance of disruptions. This integration allowed STB Union to upgrade to better technology without any loss of functionality or data from their existing systems.
Results
- 57 months of continuous frontend development and iteration to support long-term platform growth.
- Multi-currency wallets rolled out, so users can manage several currencies in a single account instead of separate exchange flows.
- One shared frontend architecture (React + React Native) used across web and mobile to reduce duplicate development and speed up feature delivery.
- High-load transaction interfaces that handle thousands of concurrent user sessions without client-side performance issues.
- Step-by-step product expansion, moving from currency exchange to full digital banking without redesigning the client experience.
Technologies we used
Project Team
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