K-LAGAN in Barcelona is seeking a talented Fullstack Developer (Java + React) to join our Software Engineering team. You will build end-to-end applications, delivering interactive front-ends and robust back-end services in a hybrid work setting.You will work with Java, Spring Boot, React, Docker and Kubernetes, collaborating with international teams, and contributing to cloud deployments on Azure. The role offers a permanent contract, growth opportunities, and a supportive, diverse tech