Backend Developer (Java / Spring Boot / AWS) - Assisted Channels Spain | Hybrid in Madrid, Barcelona, Málaga or Logroño | Remote in the rest of the country Full-time About The Role We are looking for experienced Backend Developers specialized in Java and Spring Boot, with strong expertise in microservices architectures and cloud-native development in AWS environments. You will join an international digital transformation project focused on building scalable backend services, event-driven architectures, and modern API ecosystems within a high-availability environment. This role combines backend engineering, cloud-native development, integrations, and modern architectural practices. What you’ll do * Design and develop scalable microservices using Java and Spring Boot * Define and implement RESTful APIs ensuring performance, scalability, and security * Apply clean architecture principles, including hexagonal architecture (ports & adapters)



* Develop and maintain persistence layers using PostgreSQL and JPA/Hibernate * Build and maintain serverless components using AWS Lambda * Contribute to event-driven architectures using AWS services such as SQS and EventBridge * Integrate internal and external systems, including CRM platforms via OData * Write and maintain unit and integration tests * Collaborate with DevOps and cloud teams in AWS environments * Follow best practices in CI/CD, version control, and code quality What we’re looking for * +3 years of professional experience in backend development * Strong hands-on experience with: o Java o Spring Boot o Microservices architectures * Experience designing and implementing: o REST APIs o API versioning and documentation * Strong knowledge of: o PostgreSQL o JPA / Hibernate * Experience with: o JUnit o Mockito o unit and integration testing * Experience working in AWS environments and cloud-native architectures * Understanding of clean architecture principles and separation of concerns * Spanish fluent/native level * English

📌 Backend Developer (Madrid)
🏢 Talent Connect
📍 Madrid