Full-stack Developer with German

This is the job

For one of our international clients we are looking for an experienced Full-stack Developer (Java+React) who communicates well in German.

• German language knowledge is required
• 3+ years of commercial experience working with Java.
• Strong knowledge of Java (Java 11+) and the JVM ecosystem (garbage collection, performance fundamentals).
• Experience with web frameworks (at least Spring Framework / Spring Boot
  ).
• Ability to design and implement backend modules (REST, transactions, DTOs).
• Solid understanding of relational databases (SQL)
• Font-end experience in React
  .
• Testing: unit tests (JUnit), testable design patterns.
• Daily practices: code reviews, Git (branching strategies).
• Soft skills:
  
  excellent communication and English proficiency, proactive problem-solving, breaking down complex topics into understandable steps, stakeholder collaboration, adaptability, experience working in Agile environments (Scrum/Kanban).
• Experience in designing scalable architectures and microservices.
• Familiarity with API documentation tools (Swagger/OpenAPI)
• Containerization and orchestration (Docker, Kubernetes).
• Experience in usage of AI tools like Claude Code, Git Hub Co Pilot

• Since we're moving project from PHP to Java, knowledge of PHP is a plus.
• Experience with batch processing (e.g., Spring Batch) or stream processing.
• Cloud platforms: AWS / Azure / GCP (basic services: storage, RDS, managed queues).
• Experience with message brokers (Kafka, Rabbit
  
  MQ).

• Transferring the PHP project to Java + React
• The migration to Java/React was supported by AI, which we hope will speed up the migration process.

• Private healthcare
• Sports card
• Private insurance
• Cafeteria system

At Avenga, everyone matters. We provide equal opportunities in recruitment, career development, and leadership, regardless of race, ethnicity, gender identity, sexual orientation, disability, age, religion, or any other characteristic. We are committed to fostering a work environment where our diverse community of employees, candidates, and business partners actively shapes our growth. By bringing together people from different backgrounds and experiences, we build a workplace where everyone feels free to be themselves while honoring the boundaries of others.