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

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.

How to apply

Please follow the kinl and apply right away!