Віталій

Vitalii Koltok
Back-end Developer
[открыть контакты](см. выше в блоке «контактная информация») | [открыть контакты](см. выше в блоке «контактная информация») | Warsaw, Poland | [открыть контакты](см. выше в блоке «контактная информация») | https://github.com/WyZzYx

PROFILE
Dedicated and detail-oriented Back-end Developer with a strong command of server-side programming and database management.
Skilled in creating efficient, scalable, and secure systems using Java Technologies. Experienced in API development, architecture, and
integrating third-party services. Good at optimizing performance, debugging complex issues, and collaborating with cross-functional
teams to deliver reliable, high-quality solutions. Passionate about backend development best practices, continuous learning, and
contributing to innovative projects that drive business success.

EDUCATION

Bachelor of Computer Science | Polish-Japanese Academy of Information Technology in Warsaw Jan 2023 - Present

KEY SKILLS
Soft skills:
| Problem solving | Collaboration | Creativity | Critical Thinking | Emotional Intelligence | Flexibility | Time Management |
| Analytical Thinking | Willing To Learn | Clear and Effective Communication |
Technical skills:
| Java 17 | Spring Boot | Hibernate | JUnit 5 | Thymeleaf | Postman | MySQL | OracleSQL | PL-SQL | T-SQL | PostgreSQL | C++ 21 |
|Maven | GIT & Version Control |
EXPERIENCE

Finance Tracking Application Pet Project

Designed and implemented responsive, user-friendly interfaces using Thymeleaf.
Designed and created reliable database for fast data access.
Implemented user authentication and authorization using Spring Security (JWT and OAuth2).
Implemented efficient data handling to minimize latency and improve user experience.
Documented key features and processes for users.

Tech Stack: Java 17, Spring Boot, Hibernate, Thymeleaf, PostgreSQL, Postman

Web Library Application Pet Project

Developed a comprehensive backend using Spring Boot and Hibernate for efficient data management.
Designed RESTful APIs to support CRUD operations, allowing seamless interaction between frontend and backend.
Conducted thorough testing with Postman to ensure functionality and reliability of API endpoints.
Integrated Postgres database for reliable storage and retrieval of book, user, and borrowing records.

Tech Stack: Java 17, Spring Boot, Hibernate, Thymeleaf, PostgreSQL, Postman

LANGUAGES

UKRAINIAN – NATIVE

ENGLISH –C1

POLISH –C1