Middle Java EE Developer with German

IBA Group; Wrocław; On-site; PLN 120,000 - 190,000; Full time

Job summary

IBA Group in Wrocław is seeking a Java developer with 3+ years of professional experience to work on Java 11+ applications and modern enterprise stacks. You will apply OOP, REST/JAX-RS, and JPA/Hibernate within a team environment.

Strong knowledge of Spring/Spring Boot, relational databases, testing with JUnit/Mockito, and CI/CD is expected. Collaboration with international teams, code reviews, and delivering robust software are key parts of the role.

Qualifications

• 3+ years of professional Java development experience.
• Strong knowledge of Java 11+ and OOP concepts.
• Practical experience with Java EE/Jakarta EE applications: JPA, CDI, REST/JAX-RS, Servlets.

Skills

Java

Spring

Spring Boot

JPA/Hibernate

REST/JAX-RS

SQL/Relational DBs

JUnit/Mockito

Maven/Gradle

Git

Docker

Kubernetes

Jenkins/GitLab CI

German language

Tools

Maven

Gradle

Git

Docker

Kubernetes

CI/CD tools (Jenkins/GitLab/GH Actions)

GitHub Actions

Job description

3+ years of professional Java development experience.

Java

Strong knowledge of Java 11+; understanding of OOP, collections, exceptions, concurrency basics and common design patterns.

Practical experience with Java EE/Jakarta EE applications: JPA, CDI, REST/JAX-RS, Servlets; understanding of enterprise application architecture.

Frameworks

Experience with Spring / Spring Boot is highly desirable.

Application Servers

Experience with at least one enterprise Java runtime: WildFly/JBoss, WebSphere/Liberty, WebLogic, TomEE or similar.

APIs & Integration

REST APIs, JSON; understanding of SOAP/Web Services; basic knowledge of messaging (JMS/MQ/Kafka) is an advantage.

Databases

SQL and practical experience with relational databases such as PostgreSQL, Oracle, DB2, MySQL or MS SQL.

Persistence

JPA/Hibernate or equivalent ORM experience.

Testing

Unit/integration testing with JUnit; Mockito or similar frameworks.

Build & SCM

Maven or Gradle; Git.

DevOps Basics

Understanding of CI/CD; experience with Jenkins, GitLab CI, GitHub Actions or similar is desirable.

Containers

Basic practical knowledge of Docker; Kubernetes/OpenShift is a plus.

German

B2 or higher — able to participate in customer meetings, discuss requirements and technical topics, and communicate in writing.

B1+/B2 or higher — sufficient for technical documentation and international team communication.

Soft Skills

Ability to work independently on assigned development tasks, estimate work, perform code reviews, troubleshoot issues and communicate with customer/team members.