Backend Developer (Java / Spring Boot / AWS) - Assisted Channels

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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

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- 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

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- +3 years of professional experience in backend development
- Strong hands-on experience with:

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- Java
- Spring Boot
- Microservices architectures
- Experience designing and implementing:

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- REST APIs
- API versioning and documentation
- Strong knowledge of:

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- PostgreSQL
- JPA / Hibernate
- Experience with:

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- JUnit
- Mockito
- unit and integration testing
- Experi

📌 Backend Developer (Madrid)
🏢 Talent Connect
📍 Madrid