Oleh Mykhailov

Junior Backend Developer at Pixel Digital (2025-11 – 2026-02)

• Developed a RESTful API for a users' documents management using Spring Boot.
• Designed the database schema and implemented data persistence layers using Spring Data JPA (Hibernate).
• Integrated user authentication and authorization mechanisms leveraging Spring Security and JWT (JSON Web Tokens).
• Authored unit and integration tests with JUnit and Mockito, achieving 85% code coverage.
• Configured automated project builds using Maven and containerized the application with Docker for streamlined deployment.

Intern Backend Developer at SYSMO.PL (2024-10 – 2025-09)

• Developed a RESTful service to integrate with a RAG (Retrieval-Augmented Generation) microservice, enabling LLM-powered responses based on private document data.
• Implemented efficient data flow between the backend and the RAG engine to ensure low-latency document retrieval and processing.
• Designed API endpoints for seamless communication with the AI microservice, handling complex JSON payloads and asynchronous processing.

B.S. in Data Science, Computer Science Department – Collegium da Vinci (2023-10)