Назар

Nazar Lisovskyi
Junior Java Developer
Zhytomyr, Ukraine | Remote
Phone: [відкрити контакти](див. вище в блоці «контактна інформація») | Email: [відкрити контакти](див. вище в блоці «контактна інформація»)
Telegram: t.me/lisovskyi14 | GitHub: github.com/Lisovskiy14

Summary
Motivated Junior Java Developer with a solid academic foundation in Computer Engineering and hands-on
experience building RESTful APIs and concurrent backend applications. Proficient in the Spring ecosystem
and PostgreSQL, with a strong focus on clean architecture and problem-solving.

Technical Skills
●​ Languages: Java (Core, OOP, Stream API), SQL
●​ Frameworks: Spring Boot, Spring Web (REST), Spring Data JPA, Spring Security, Hibernate
●​ Databases: PostgreSQL (ACID), Liquibase
●​ Tools & DevOps: Docker, Git, Gradle, Maven, OpenAPI (Swagger), Postman
●​ Testing: JUnit, Mockito

Projects

CoffeeLine Backend | [GitHub]
●​ Developed a backend REST API system for a coffee shop application.
●​ Managed database schema migrations securely using Liquibase.
●​ Designed relational database schemas and managed complex entity associations (One-to-Many,
Many-to-Many) using Spring Data JPA.

Personal Blogging Platform API | [GitHub]
●​ Designed and built a backend API for a personal blogging project, focusing on clean code and reliable
architecture.
●​ Engineered a dynamic role hierarchy and permission management system from scratch to control user
access.
●​ Implemented secure user authentication and authorization utilizing Spring Security and JWT.

Price Monitoring System via Telegram | [GitHub]
●​ Developed a highly concurrent backend service to track item prices via a Telegram bot interface.
●​ Implemented Java Virtual Threads to handle thousands of monitored items efficiently and maintain
performance under high concurrency.
●​ Incorporated a streamlined list of bot commands for user interaction: <url> for item registration,
/all for viewing the watchlist, and /remove <url> for deleting items.

Education
National Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute”
Bachelor’s Degree in Computer Engineering (FIOT 123)
Expected Graduation: 2027

Languages
●​ English: Intermediate (B1)
●​ Ukrainian: Native