Vasyl Yatsyshyn — vasylyatsishin

Java · Javascript and Typescript

Lvov, Ukraine

— from database design to publishing the final product on the App Store and Google Play. Core Competencies: • Mobile: Expert in React Native (Expo/Bare workflow) development. • Backend: Java, Spring Boot , REST API development, and database integration (MSSQL, PostgreSQL). • Frontend: Proficient in React.js. • Experience: 0.5 years at Berta Group as a Full-Stack Mobile Developer (Tech stack: Java Spring Boot…

Vladislav Martishevsky — Ambrosy

Java · Web Programming

Lvov, Ukraine

Yaroslav Boyko — yaroslavBo

Java · Engineering

Bucuresti, Romania

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…