A dedicated Java Backend Engineer with over 3 years of commercial experience building scalable microservices and robust REST APIs. Skilled in Java 17/21/25, the Spring Boot ecosystem, and cloud-native tools, I have contributed to performance optimizations and event-driven systems in international Agile teams. Adept in both backend development and quality assurance, I thrive in collaborative, growth-focused environments. I am eager to continue advancing my skills and take on new challenges as a middle-level engineer in Poland.

Designed and maintained scalable backend features using Java 25 and Spring Boot / Spring Cloud in a microservices architecture. Enhanced application performance by optimizing complex SQL queries and database operations. Integrated asynchronous messaging with Kafka and RabbitMQ to ensure reliable inter-service data streaming. Promoted to this position due to high performance.

Mid-level Java Developer

Developed core backend features with Java 17+ and Spring Framework in an Agile setting. Improved software reliability by creating automated test suites with JUnit 5, Mockito, and Testcontainers. Actively participated in sprint planning, architecture discussions, and code reviews.

Junior Java Developer

Developed backend features for a student project system using Java and Spring Boot, enhancing system functionality. Managed Scrum-based tasks via JIRA and version control with Git/GitHub, including setup of basic GitHub Actions.