Backend Developer

Talent Connect

Madrid, Spain

26 days ago

Role details

Contract type

Permanent contract

Employment type

Full-time (> 32 hours)

Experience required

3 years minimum

Working hours

Regular working hours

Languages

English, Spanish

Job source

es.trabajo.org

Tech stack

Java (Programming Language) Application Programming Interfaces (APIs) Amazon Web Services Unit Testing Cloud Computing Cloud Engineering Software Quality Continuous Integration DevOps Hibernate (Java) Java Persistence API Junit

+17 more

PostgreSQL Microsoft Dynamics Open Data Protocol Systems Integration Management of Software Versions Spring-boot AWS Lambda Backend Event Driven Architecture Integration Tests Apache Kafka Restful APIs Amazon Simple Queue Service (SQS) Domain Driven Design Software Version Control Serverless Computing Microservices

Job description

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

Requirements

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.