Senior Backend Java Developer (Microservices / AWS) - Spain (Hybrid/Remote)

Overview

Senior Backend Java Developer (Microservices / AWS) (2) — Spain | Hybrid in Madrid, Barcelona, Málaga or Logroño | Remote in the rest of the country

Full-time

We are looking for Senior Backend Java Developers to join an international digital banking project focused on building scalable, cloud-native backend solutions.

You will work on the development of modern microservices architectures within a high-availability environment, collaborating with distributed engineering teams in an agile ecosystem.

This is a hands-on backend role focused on performance, scalability, and clean engineering practices.

What you’ll do

• Design, develop, and maintain backend microservices using Java and Spring Boot
• Build and maintain REST APIs
• Work with relational and non-relational databases
• Develop integration and unit tests
• Collaborate with cloud-native environments on AWS
• Participate in code reviews and technical discussions
• Contribute to scalable and maintainable backend architectures

What we’re looking for

• +3 years of hands-on experience developing backend microservices with:
  • Java
  • Spring Boot
  • Spring Batch
  • PostgreSQL
• Experience working with:
  • REST APIs
  • JPA / Hibernate
  • Relational and non-relational databases
  • Caching technologies
• Experience with:
  • AWS
  • AWS S3/Lambda
  • Git
  • Maven
• Experience developing:
  • unit tests (JUnit, Mockito)
  • integration tests
  • Spanish fluent/native level
  • English B2 (spoken and written) – required

Nice to have

• Knowledge of Go / Golang
• Experience in digital banking or high-transaction environments
• Experience working in distributed agile teams

Work model

• Hybrid model available in:
  • Madrid
  • Barcelona
  • Málaga
  • Logroño
• Remote from other locations within Spain

Note

We are looking for backend-focused profiles with strong Java and microservices experience. Experience limited to document management platforms or unrelated enterprise systems will not be considered relevant for this role.

How to apply

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