Junior Java Developer (Backend)

Junior Backend Java Developer Location: Warsaw, Poland (hybrid – 2 days/week in the office)About the Role We’re looking for a Junior Backend Java Developer to join a team building scalable, modern backend systems for international products. You’ll work in a collaborative environment with a strong focus on learning, ownership, and quality. Responsibilities • Develop and maintain backend applications using Java 17+ and Spring Boot • Ensure performance, scalability, and security of solutions • Work with SQL databases (e.g. PostgreSQL) • Support deployments using Docker, Kubernetes, and Helm • Use Bash/Shell for automation tasks • Collaborate in Agile (Scrum) teams and communicate in English Requirements • Java 17+, Spring / Spring Boot / Spring Security • Maven, SQL, Git (GitHub, CI/CD basics) • Experience with unit testing • English B2/C1 • Around 2 years of commercial experience Nice to Have • PostgreSQL, Hibernate/JPA • Kubernetes, Helm • Kafka, microservices • Bash/Shell or Python • CI/CD tools, JIRA • Monitoring tools (Grafana, Prometheus) • Security basics (OWASP) Qualifications • Degree in Computer Science or related field