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Kyiv, Ukraine
ROMAN BARCHUK [открыть контакты](см. выше в блоке «контактная информация»)
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JAVA DEVELOPER
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CAREER OVERVIEW
Experienced software engineer with 3+ years of experience in backend
development, working across e-commerce, social media and SaaS domains.
Specialized in designing and implementing scalable service integrations with
external systems. I possess a solid foundation in object-oriented programming
principles and a deep understanding of Java technologies and frameworks,
proficient with database management systems and API development.

EDUCATION EXPERIENCE
Master of Computer Sciences
Bachelor's degree Computer Sciences AvMap LLC - TOYOL | D3D | WASTE
2024 - 2026
National Technical University of
Ukraine “Igor Sikorsky Kyiv Designed and implemented REST APIs and
Polytechnic Institute” | 2024
new services in microservice ecosystem
Built integrations with external providers,
SKILLS
handling data mapping and failures
Core Programming: Developed microservices using AWS services
Java 8+, Object-Oriented Programming (Lambda, SQS, Cloudwatch)
(OOP) Designed synchronization flows between
Frameworks and Persistence: external systems with retry handling
Spring Framework, JPA, Hibernate, JDBC
Databases: EPAM Systems - CTC | 2023 - 2024
SQL, MySQL database management
Developed REST endpoints and related
Testing:
business logic
JUnit, Mockito
Refactored legacy code with a purpose of
Build Tools:
boosting its perfomance
Ant, Maven, Gradle
Fixed production issues, including critical ones
Version Control:
using multiple tracing tools and monitoring tools
Git, Flyway
(Grafana, Prometheus, Kibana, OpenSearch)
Architecture and Design:
Microservice architecture, RESTful APIs,
EPAM Systems - HPP | 2022 - 2023
messaging systems, GoF design patterns,
SOLID principles Implemented integration with Meta API to
Cloud and Environment: bring its content to a blog page
AWS services (SQS, Lambda, S3, EC2), Processed multipart media files via REST API
Docker (basic), Linux (basic) Worked on endpoint documentation and
Languages: integration of Swagger
English B2+