Богдан

BOHDAN KUPETSKYI
Software Engineer

[open contact info](look above in the "contact info" section) | [open contact info](look above in the "contact info" section) | Ukraine, Lviv | LinkedIn Profile | Telegram: @nerobitsogo

PROFESSIONAL SUMMARY
Java Backend Engineer with 1.5+ years of experience in designing and modernizing enterprise-grade applications. Proven
expertise in the Spring ecosystem, microservices architecture, and legacy system migration. Committed to engineering scalable,
high-performance solutions with a strong focus on automated testing, clean code principles, and event-driven design.

SKILLS
• Programming: Java 17/8, SQL
• Backend & Frameworks: Spring Boot, Spring MVC, Spring Data JPA, Spring Security, Hibernate, Jakarta EE, REST
APIs
• Architecture & Messaging: Microservices, Event-Driven Architecture, Apache Kafka, RabbitMQ, JMS, Saga Pattern
• Databases: PostgreSQL, Oracle, MySQL, Redis
• Testing: JUnit 5, Mockito, Testcontainers, Integration Testing
• DevOps & Infrastructure: Docker, Kubernetes, GitHub Actions, CI/CD, Git, Maven, Gradle, Ant
• Monitoring & Observability: OpenTelemetry, Prometheus, Grafana
• Methodologies & AI Tools: Agile, Code Reviews, SOLID, Clean Code, Claude Code, GitHub Copilot, ChatGPT

WORK EXPERIENCE
Java Software Engineer
GLOBALLOGIC | Jan 2025 - June 2026
• Spearheaded the migration of legacy EJB components to Spring Boot services, improving system scalability and reducing
maintenance overhead.
• Optimized complex Oracle SQL and PL/SQL queries, resulting in a 20% increase in data processing efficiency for core
business modules.
• Collaborated with cross-functional teams to design high-performance backend solutions while maintaining strict
adherence to clean code principles.
• Ensured high software quality by achieving comprehensive test coverage with JUnit 5, Mockito, and Testcontainers for
mission-critical paths.
Environment: Java 17, Spring Boot, Spring Data JPA, Spring Security, Jakarta EE 10, EJB, Oracle Database, JMS, JUnit 5, Mockito,
Testcontainers, Docker, Maven, Gradle, Git.

Associate AQA Engineer
Appexoft | Aug 2024 - Jan 2025
• Increased release confidence by developing automated end-to-end and API test suites using Playwright, TypeScript, and
JavaScript.
• Reduced manual regression effort by 30% by building reusable automation components and expanding test coverage
across critical business flows.
• Accelerated feedback loops by integrating automated testing into CI/CD pipelines using GitHub Actions.
• Improved defect detection efficiency by collaborating with developers on root-cause analysis and validating functional
fixes early in the lifecycle.
Environment: JavaScript, TypeScript, Playwright, REST APIs, GitHub Actions, CI/CD, Git, Node.js.

PERSONAL PROJECTS
Event-Driven E-Commerce Platform | GitHub Repository
• Developed a microservices-based e-commerce platform using Java 17 and Spring Boot to explore distributed systems
and event-driven design.
 • Built resilient asynchronous messaging flows with Apache Kafka and RabbitMQ, implementing the Saga pattern for
transaction consistency.
• Integrated a modern observability stack (Prometheus, Grafana, OpenTelemetry) to monitor service health and trace
distributed requests.
• Automated deployment and CI/CD pipelines using Docker and GitHub Actions, ensuring a streamlined development-
toproduction workflow.
• Enhanced system observability by integrating Prometheus, Grafana, Loki, and OpenTelemetry for metrics collection and
distributed logging.
• Validated critical business flows and service interactions through comprehensive unit and integration testing with JUnit
5, Mockito, and Testcontainers.
Environment: Java 17, Spring Boot, Spring Security, Spring Data JPA, PostgreSQL, Redis, Apache Kafka, RabbitMQ, Docker,
GitHub Actions, Prometheus, Grafana, Loki, JUnit 5, Mockito, Testcontainers.

EDUCATION
Lviv Polytechnic National University | Internet of Things (2023 - 2027)

LANGUAGES
English (B2)
Ukrainian (Native)
Polish (Basic)