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November 4, 2026
Java Developer
Senior • On-site
18,000 - 22,500 PLN/yr
Warsaw, Poland
Quick Facts
Role: Java Developer
Description
Java Developer role requiring ~5 years of Java development experience with Java 8+ and expertise in REST APIs, Spring/Spring Boot, ORM (JPA/Hibernate), and relational databases. You will build efficient, scalable, and stable software, help design and implement new tested functionality, and support production diagnostics and performance optimization.
Responsibilities
Develop efficient, scalable, stable software
Participate in designing and implementing new functionality covered by tests
Support diagnosis of issues and optimize production system performance
Actively share knowledge within the team
Requirements
~5 years experience as a Java developer
Java 8+ knowledge
Experience with JPA or ORM frameworks (e.g., Hibernate)
Experience with relational databases (MySQL, PostgreSQL, MS SQL, Oracle)
Experience with Maven/Gradle
Experience with REST API
Knowledge of Spring and Spring Boot
Knowledge of unit testing libraries (e.g., JUnit, Mockito)
Benefits
Not specified in the provided posting.
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