I'm Yaroslav Kulpan. I architect digital experiences from mobile to cloud.

My engineering philosophy is simple: build systems that scale, interfaces that delight, and code that lasts. With 6+ years in the field, I've evolved from a React enthusiast to a full-stack engineer who thinks in complete ecosystems. I architect mobile-first solutions using React Native, craft responsive web experiences with React and Vue, and design robust backend systems powered by Node.js, NestJS, and PostgreSQL.

Currently at NovaPay, I'm building fintech solutions that handle millions in transactions. I also founded Smuga, where I architect and develop the complete technology stack from ground up - combining my passion for clean code with entrepreneurial vision. At Luxoft, I modernized legacy banking systems, reverse-engineering Java codebases into TypeScript and building custom UI components that improved user experience across the board.

Beyond coding, I believe in knowledge sharing. As a React instructor at GoIT, I've taught hundreds of developers the fundamentals of modern web development. My approach combines theoretical understanding with practical, production-ready patterns. Whether it's optimizing React Native performance, designing PostgreSQL schemas, or building real-time systems with WebSockets, I focus on solutions that work in the real world.