Java Software Engineer

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.