Java & Kotlin Developers - Krakow - Poland - Onsite 3 days per week

We are looking for skilled Java & Kotlin Developers to join our growing technology team in Poland. As part of an international development group, you’ll design, build, and maintain scalable backend systems using Java and modern frameworks. You’ll collaborate closely with cross-functional teams to deliver high-quality, reliable, and efficient software solutions.

Key Responsibilities
• Design, develop, and maintain Java-based applications and microservices.
• Write clean, efficient, and testable code following best practices and coding standards.
• Collaborate with front-end developers, DevOps engineers, and QA teams to ensure seamless integration and delivery.
• Participate in code reviews, architecture discussions, and agile ceremonies.
• Contribute to technical documentation and continuous improvement of development processes.
• Troubleshoot and optimize performance across distributed systems.

Requirements
•

5+ years of experience in backend development using Java 8+ Kotlin.
• Strong understanding of Spring Framework / Spring Boot.
• Experience with RESTful APIs, microservices, and SQL / NoSQL databases (e.g., PostgreSQL, MongoDB).
• Knowledge of Agile / Scrum methodologies.
• Good command of English (B2 or higher) – Polish language skills are a plus.

Nice to Have
• Experience with cloud platforms (AWS, Azure, or GCP).
• Familiarity with message brokers (Kafka, RabbitMQ).
• Knowledge of unit testing and test automation frameworks (JUnit, Mockito).
• Interest in DevOps or system design concepts.

How to Apply
If you’re passionate about building high-quality Java applications and want to be part of a dynamic engineering team, send your CV