Backend Developer (Java / Spring Boot / AWS) - Spain (Hybrid/Remote)

Das ist der Job

This is a highly technical and hands‑on role within a collaborative engineering environment.

Darum lohnt es sich

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: • Java • Spring Boot • Microservices architectures • Experience designing and implementing: • REST APIs • API versioning and documentation • Strong knowledge of: • PostgreSQL • JPA / Hibernate • Experience with: • JUnit • Mockito • 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 B2 (spoken and written) – required Highly valued • Experience with: • AWS Lambda • Event-driven architectures • Amazon SQS • Amazon EventBridge • Kafka or similar technologies • Experience integrating with: • Microsoft Dynamics • OData protocols • Knowledge of: • Hexagonal Architecture • Domain-Driven Design (DDD) principles Work model • Hybrid model available in: • Madrid • Barcelona • Málaga • Logroño • Remote from other locations within Spain Note We are looking for backend-focused engineers with strong experience building modern Java microservices and cloud-native systems.

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.