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Програміст Java
- City of residence:
- Lviv
- Ready to work:
- Lviv, Remote
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Vitalii Fedyk
Software Engineer
fedykvitalik2004@gmail.com [open contact info ](look above in the "contact info" section) Lviv github.com/fedykvitalik2004
[open contact info ](look above in the "contact info" section)
Summary
Java Backend Developer with nearly 2 years of commercial experience in Microservices-based environments.
Proficient in Java 17/21 and Spring Boot, with practical experience applying Hexagonal Architecture to maintain clean
and decoupled domain logic.
Skilled in building event-driven systems using Apache Kafka and designing robust RESTful APIs.
Technologies:
Programming Languages
Java 17/21, SQL
Frontend(basic):
HTMl, CSS, JS
Frameworks and Libraries
Spring Framework, Spring Boot, Spring MVC, Spring Data JPA, Spring Security, Hibernate, JDBC
API & Communication
OpenAPI (Swagger), AsyncAPI, REST
Databases
PostgreSQL, Liquibase/Flyway
Testing
JUnit, Mockito, Spring Test, Karate DSL, Testcontainers, Postman
Cloud & DevOps
AWS (EC2, S3), Linux, Docker, GitHub Actions, Jenkins
Methodologies
Scrum, Behavior-Driven Development (BDD)
Al
GitHub Copilot, Claude, Prompt Engineering
Experience
Junior Java Developer Dec 2024 – Apr 2026
Softserve
A manufacturing and quality management system enabling users to perform
inspections, track defects, manage reoperations and monitor supply chain processes.
Contribution:
Designed and implemented RESTful APIs with Spring Security and OpenAPI
•
(Swagger), ensuring secure and scalable data access.
Implemented event-driven communication using Apache Kafka to process
•
asynchronous message streams across microservices.
Eliminated technical debt by refactoring legacy 'code smells' into clean, modular
•
components.
Developed backend services following Hexagonal and Clean Architecture
•
principles.
Designed PostgreSQL database schemas and optimized performance through
•
query refactoring and indexing, reducing API response times.
1/3
Ensured high system reliability by building a comprehensive automated testing
•
suite (Unit, Integration and E2E).
Containerized services using Docker and contributed to CI/CD pipeline
•
configurations via GitHub Actions.
Participated in Scrum ceremonies, code reviews, and system design improvements,
•
collaborating with stakeholders to refine business requirements.
Technologies:
Programming & Frameworks
Java 21, Spring Boot, Spring Data JPA, Spring Security, Hibernate
Databases
PostgreSQL, MariaDB
Messaging
Apache Kafka
API & Documentation
REST APIs, OpenAPI (Swagger)
Testing
JUnit, Mockito, Karate DSL
Frontend (basic)
HTML, CSS, Free Marker
DevOps & Tools
Docker, GitHub, Jira, GitHub Copilot, Claude
Trainee Java Developer Jun 2024 – Nov 2024
A GreenTech web platform for waste sorting and doorstep collection, featuring
automated scheduling, multi-category waste processing (recyclables, textiles, mixed
waste), and integrated online payments.
Contribution:
Developed RESTful APIs using Java and Spring Boot, implementing core backend
•
functionality and request/response handling
Investigated and fixed bugs, contributing to improved system stability
•
Wrote unit and integration tests to ensure code quality
•
Participated in code reviews
•
Collaborated with team members, including daily communication and requirement
•
clarification
Technologies:
Programming & Frameworks
Java 17, Spring Boot, Spring Data JPA, Hibernate
Database
PostgreSQL
Testing
JUnit
Project & Collaboration Tools
GitHub Projects
Education
Information Systems and Technologies - Bachelor's Degree 2021 – 2025
Lviv Polytechnic National University Lviv, Ukraine
2/3
Interests
Traveling and exploring new cultures Photography and visual storytelling
3/3
Software Engineer
fedykvitalik2004@gmail.com [
[
Summary
Java Backend Developer with nearly 2 years of commercial experience in Microservices-based environments.
Proficient in Java 17/21 and Spring Boot, with practical experience applying Hexagonal Architecture to maintain clean
and decoupled domain logic.
Skilled in building event-driven systems using Apache Kafka and designing robust RESTful APIs.
Technologies:
Programming Languages
Java 17/21, SQL
Frontend(basic):
HTMl, CSS, JS
Frameworks and Libraries
Spring Framework, Spring Boot, Spring MVC, Spring Data JPA, Spring Security, Hibernate, JDBC
API & Communication
OpenAPI (Swagger), AsyncAPI, REST
Databases
PostgreSQL, Liquibase/Flyway
Testing
JUnit, Mockito, Spring Test, Karate DSL, Testcontainers, Postman
Cloud & DevOps
AWS (EC2, S3), Linux, Docker, GitHub Actions, Jenkins
Methodologies
Scrum, Behavior-Driven Development (BDD)
Al
GitHub Copilot, Claude, Prompt Engineering
Experience
Junior Java Developer Dec 2024 – Apr 2026
Softserve
A manufacturing and quality management system enabling users to perform
inspections, track defects, manage reoperations and monitor supply chain processes.
Contribution:
Designed and implemented RESTful APIs with Spring Security and OpenAPI
•
(Swagger), ensuring secure and scalable data access.
Implemented event-driven communication using Apache Kafka to process
•
asynchronous message streams across microservices.
Eliminated technical debt by refactoring legacy 'code smells' into clean, modular
•
components.
Developed backend services following Hexagonal and Clean Architecture
•
principles.
Designed PostgreSQL database schemas and optimized performance through
•
query refactoring and indexing, reducing API response times.
1/3
Ensured high system reliability by building a comprehensive automated testing
•
suite (Unit, Integration and E2E).
Containerized services using Docker and contributed to CI/CD pipeline
•
configurations via GitHub Actions.
Participated in Scrum ceremonies, code reviews, and system design improvements,
•
collaborating with stakeholders to refine business requirements.
Technologies:
Programming & Frameworks
Java 21, Spring Boot, Spring Data JPA, Spring Security, Hibernate
Databases
PostgreSQL, MariaDB
Messaging
Apache Kafka
API & Documentation
REST APIs, OpenAPI (Swagger)
Testing
JUnit, Mockito, Karate DSL
Frontend (basic)
HTML, CSS, Free Marker
DevOps & Tools
Docker, GitHub, Jira, GitHub Copilot, Claude
Trainee Java Developer Jun 2024 – Nov 2024
A GreenTech web platform for waste sorting and doorstep collection, featuring
automated scheduling, multi-category waste processing (recyclables, textiles, mixed
waste), and integrated online payments.
Contribution:
Developed RESTful APIs using Java and Spring Boot, implementing core backend
•
functionality and request/response handling
Investigated and fixed bugs, contributing to improved system stability
•
Wrote unit and integration tests to ensure code quality
•
Participated in code reviews
•
Collaborated with team members, including daily communication and requirement
•
clarification
Technologies:
Programming & Frameworks
Java 17, Spring Boot, Spring Data JPA, Hibernate
Database
PostgreSQL
Testing
JUnit
Project & Collaboration Tools
GitHub Projects
Education
Information Systems and Technologies - Bachelor's Degree 2021 – 2025
Lviv Polytechnic National University Lviv, Ukraine
2/3
Interests
Traveling and exploring new cultures Photography and visual storytelling
3/3
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The candidate's resume is posted at https://www.work.ua/resumes/18251214/