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:

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

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📌 Backend Developer (Java / Spring Boot / AWS) - Spain (Hybrid/Remote)
🏢 Talent Connect
📍 Madrid