Senior Java Engineer (Java 17/21) | Remote/Hybrid

Location: Spain

Contract Type: 1 year + Extension

Hourly Rate: €30


We are looking for an experienced Senior Java Engineer to join a talented engineering team building scalable, resilient, and high-throughput backend services. This is an opportunity to work with modern Java technologies, event-driven architectures, cloud-native platforms, and cutting-edge distributed systems


Key Responsibilities:

  • Designing and developing high-performance microservices using Java 17/21 and Spring Boot .
  • Building and maintaining distributed systems leveraging gRPC , Protobuf , and event-driven architectures.
  • Developing reactive and asynchronous applications using Project Reactor , RxJava , or modern Java concurrency frameworks.
  • Creating scalable integrations with Kafka , databases, and cloud-native services.
  • Driving engineering excellence through robust testing, code reviews, design documentation, and technical leadership.
  • Collaborating across teams to deliver secure, reliable, and maintainable solutions.
  • Contributing to architecture decisions, system design reviews, and continuous improvement initiatives.


Experience:

  • 8+ years of professional Java development experience
  • 3+ years working with Java 17 or Java 21
  • Spring Framework / Spring Boot
  • Production-grade backend services
  • Microservices architecture


If you are a passionate and dedicated IT Professional looking to join a dynamic and innovative organization, we encourage you to apply.


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