Yaroslav Boyko

I am a Backend Java Developer specializing in building scalable and high-performance systems using Java and Spring Boot.

I have experience working with real-time communication systems (video/chat), WebSockets, REST APIs, and third-party integrations. I’ve built solutions using AWS services (including S3 and Chime SDK), and worked with Docker-based deployments.

My core strengths include:
- Backend development with Java, Spring Boot, Hibernate- Designing REST APIs and real-time systems (WebSocket, SSE)
- Multithreading and performance optimization- Working with relational and NoSQL databases (MySQL, PostgreSql, MongoDB)
- Integrating external APIs and handling complex data flows

I also have experience developing bots for data extraction and working with HTTP(S) protocols, which helps me solve tasks involving automation and scraping.

I focus on writing clean, maintainable code and delivering reliable solutions. If you need a developer who can handle complex backend logic and performance challenges, I’m ready to help.