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

Please follow the kinl and apply right away!