NovaPay — Fintech Ecosystem for Modern Payments

NovaPay is one of Ukraine’s leading fintech companies, providing fast, secure, and reliable payment solutions to millions of users daily. As a part of the Nova Poshta group, it serves both individuals and businesses, enabling seamless financial transactions, online purchases, and credit management.

Client background

NovaPay aimed to enhance its fintech platform by introducing new financial tools for private entrepreneurs (PEs), expanding its external acquiring capabilities, and improving transaction flexibility and scalability. The goal was to empower users to manage credits, pay bills, and shop effortlessly using the NovaPay ecosystem.

Business challenge

The challenge was to integrate complex financial operations — credit visibility, payments, and acquiring — into one cohesive and user-friendly experience, all while maintaining high performance, reliability, and security across millions of daily transactions.

Implementation

I contributed to the development of several key modules within NovaPay’s fintech platform:

• Developed a Private Entrepreneur Credits page and its API, allowing PE users to view, order, and pay their credits seamlessly.
• Integrated external acquiring functionality, enabling NovaPay users to make purchases from any merchant using connected payment systems.
• Built a Transaction Builder Service that dynamically modifies financial transactions using database-defined rules — improving flexibility and error resilience.
• Actively participated in the company’s Innovation Lab, where we brainstormed and prototyped cutting-edge ideas to push fintech innovation forward.

Technologies used: React Native, Express.js, PostgreSQL, RabbitMQ, Docker, ELK, TypeScript.

Results & value delivered

The new features significantly enhanced the financial capabilities of NovaPay’s ecosystem. My APIs alone handle over 2,000,000 transactions daily, ensuring high availability and performance. The updates improved user experience, expanded NovaPay’s market reach, and reinforced its position as a top-tier digital payment solution in Eastern Europe.