Java Fullstack Developer (m/f/d)

Position: Java Fullstack Engineer. Location: Barcelona, Spain (2-3 Days onsite a week) Duration: Permanent Language : English (Fluent) Key Responsibilities Development Design, implement, and maintain backend applications using Java 17, Spring Boot, Spring Data JPA, Spring Security, and microservices patterns. Build and enhance REST APIs and event-driven services with Apache Kafka. Collaborate with frontend features using Angular (v14–21+) and TypeScript, when required. Collaboration & Delivery Work closely with Business Analysts to understand requirements, refine user stories, estimate tasks, and deliver complete solutions. Review team members' code and provide constructive, high‑quality feedback. Ensure full documentation and perform unit, integration, and end-to-end testing, depending on the project. DevOps, CI/CD & Production Operations Contribute to automating deployment, CI/CD, testing, and observability processes. Monitor, maintain, and improve the stability and performance of applications and microservices in production. Operate within distributed Agile teams (Scrum/SAFe), actively participating in all ceremonies and promoting engineering best practices. Required Qualifications (Must‑Have) Strong hands-on experience with: Java 17+, Spring Boot (Security, Data, Cloud) Angular REST API Development, OpenAPI Microservices Architecture Apache Kafka SQL & MongoDB Kubernetes Jenkins CI/CD SonarQube Selenium or TAF (depending on the project) AWS IntelliJ GitHub Jira & Confluence Experience Level 4–6 years (Level 2)