**What are we looking for?** Senior Java Backend Developer +11/Reactive Programming – Hybrid in Medellín **Your main responsibilities:** * Java 11+ (ideally Java 17 or higher) * Functional and reactive programming * Solid understanding of OOP, design patterns, and best practices (SOLID, DRY, Clean Code) * Spring Boot * Spring WebFlux * Spring ecosystem (Spring Data, Spring Security, Actuator) * Building REST APIs and/or event-driven systems * Gradle * Hexagonal Architecture (Ports & Adapters) * Microservices * Domain-Driven Design (DDD) * Messaging/streaming (Kafka, RabbitMQ, Event Hubs) – optional but valuable * MongoDB * SQL knowledge (PostgreSQL, MySQL) * Data modeling and optimization * Git (GitFlow, Pull Requests, Code Review) * Cloud: Azure, AWS * Containers: Docker * Orchestration: Kubernetes * CI/CD (Azure DevOps) * JUnit * Mockito * JMeter * Integration testing and contract testing * Quality tools: SonarQube, Jacoco **Soft skills:** Assertive communication Teamwork Willingness and openness to receiving feedback *-In compliance with our data protection policies, we inform you that the information you provide will be processed in accordance with the Privacy Notice available on our website, under the section: Privacy Notice for the Processing of Personal Data – Candidate-* As a partner for IT consulting and software development, we specialize in the digital transformation of our clients in finance, insurance, and industry. Our approximately 700 talents in Germany develop sustainable solutions using cutting-edge technologies. **Five reasons to join #TeamGFT** ---------------------------------------------- * **Flexibility:** Balance is everything here! We offer an environment that supports flexible hours and remote work. * **Collaboration:** Collaboration is fundamental. We work in multidisciplinary teams where each person contributes their unique skills. * **Multiculturalism:** We have a diverse global team that fosters an atmosphere of learning and personal growth. * **Development:** We offer personalized career paths as well as training programs to unlock your potential. * **Relevance:** We collaborate with industry-leading clients on high-impact projects that shape the technological future.