Артем

Artem Krainyk Lviv, Ukraine
[open contact info](look above in the "contact info" section)
Java Developer (Trainee/Junior) [open contact info](look above in the "contact info" section)
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PROFESSIONAL SUMMARY__________

Junior Java Developer and Computer Science student with hands-on experience in building backend and
full-stack applications using Spring Boot, REST APIs, and relational databases. Developed multiple
academic and personal projects, including an e-commerce platform and an IoT-based Smart Campus
system with a mobile client. Strong understanding of OOP, SOLID principles, layered architecture, and
backend system design. Passionate about writing clean, maintainable code and continuously improving
software engineering skills.

TECHNICAL SKILLS__________
Languages: Java, SQL, C, C++, CSS, HTML, JS.
Java Core: OOP, Collections, Multithreading & Concurrency, Stream API.
Back-end & Frameworks: Spring (Core, Boot, MVC, Security, Data), JDBC, Servlet API, Rest API
Design, Thymeleaf, MapStruct, ActiveMQ
Databases: PostgreSQL, MongoDB, MS SQL Server.
Concepts: Data Structures and Algorithms, Design Patterns, RESTful API Design, SOLID, SDLC, AOP.
Testing & Tools: JUnit, Mockito, Git (GitHub, GitLab), Docker, Maven, Log4, Postman, Trello,
Swagger/OpenAPI, Liquibase.
Soft skills: Teamwork, Problem-solving, Time management, Attention to detail.
PROJECTS__________
Appliance Store Web Application
Technologies: Java, Spring Boot, Spring MVC, Spring Data JPA, Hibernate, PostgreSQL, Thymeleaf
GitHub: https://github.com/Nusuk19/Appliance_Store.git
• Developed a full-stack e-commerce app with product catalogs, user management, and shopping
workflows.
• Implemented layered architecture (Controller-Service-Repository) and relational database schema
using JPA/Hibernate.
• Created server-side rendered UI with Thymeleaf, including form validation and global exception
handling.
Eazy School Educational Management System
Technologies: Java, Spring Boot, Spring Security, JPA, Thymeleaf, MySQL/PostgreSQL
GitHub: https://github.com/Nusuk19/Eazy_school.git
• Built educational management web system with courses, students, and contact modules
• Implemented authentication and role-based authorization using Spring Security
• Designed MVC architecture with service and persistence layers
• Developed persistent data layer with Spring Data JPA and relational database
• Applied validation, exception handling, and configuration management in Spring Boot
Smart Campus Android Client
Technologies: Kotlin, Android SDK, Retrofit, REST API, MVVM, LiveData/ViewModel, XML UI
GitHub: https://github.com/Nusuk19/Smart_Campus_Android.git
• Developed Android mobile client for Smart Campus IoT system
• Integrated REST API communication using Retrofit and JSON serialization
• Designed multi-screen mobile UI with activities/fragments and responsive XML layouts
• Applied MVVM architecture with ViewModels and LiveData for state management
• Implemented authentication and real-time device/room interaction features
Smart Campus Backend Server
Technologies: Java, Spring Boot, REST API, Spring Data JPA, Hibernate, PostgreSQL
GitHub: https://github.com/Nusuk19/SmartCampusServer.git
• Designed and implemented RESTful backend for Smart Campus IoT management system
• Designed database entities and relationships for campus infrastructure model
• Implemented REST controllers for mobile client communication (CRUD + status updates)
• Applied service layer for business logic and device state management
• Configured persistence and API serialization with Spring Boot and JPA
University Management Desktop Application (JavaFX)
Technologies: Java, JavaFX, FXML, Scene Builder, OOP,File/DB storage GitHub:
https://github.com/Nusuk19/Kursova.git
• Developed desktop information system with graphical UI using JavaFX
• Designed multi-window UI using FXML layouts and JavaFX controllers
• Implemented object-oriented domain model for university entities
• Created user interaction workflows for data entry, editing, and visualization
• Applied MVC pattern and event-driven programming in JavaFX
Additional
In the course of team work, I created a Telegram bot using Java and MySQL
Technologies: Java, MySQL, Telegram Bot API.
GitHub: https://github.com/Nusuk19/MyPolitechnik.git
EDUCATION__________
Bachelor's degree in Computational Intelligence of Smart Systems at Lviv Polytechnic National
University (2022 – 2026)
LANGUAGES | Ukrainian - Native | Polish - Intermediate | English - Intermediate