Java Software Engineer

Akens / Nordburg is seeking for a German IT-solutions company highly skilled and experienced Java Develper (m/f) to enlarge the Spanish based Team and contribute to the design and development of modern, reactive, and event-driven backend systems. You will work with a cloud-native technology stack, focusing on scalability, performance, and reliability, while collaborating closely with cross-functional teams. Location: 100% remote from Spain RESPONSIBILITIES: - Design, develop, and maintain backend services using Java and Spring Boot - Build reactive applications using Spring WebFlux - Implement and integrate event-driven architectures using Kafka - Develop real-time integrations via WebSocket and reactive messaging - Integrate databases using PostgreSQL, Hibernate, JDBC, and R2DBC - Implement Kafka integrations with Spring Cloud Stream - Contribute to containerized and cloud-native deployments - Ensure high code quality through clean code practices, testing, and reviews -

Collaborate in CI/CD pipelines and infrastructure automation workflows - Work closely with product, architecture, and DevOps teams REQUIREMENTS: - University degree in one of the following fields: science, mathematics, computer science, or engineering - Extensive experience with Spring Boot, including deep knowledge of frameworks and starters such as: Spring WebFlux (reactive programming), Reactive Kafka Streaming, WebSocket and Kafka Reactive Binder - Strong expertise in database integration, especially with PostgreSQL - Experience with ORM technologies (e.g. Hibernate) - Solid knowledge of JDBC and R2DBC for reactive data processing - Proven experience with event-driven architectures, including Kafka as a message broker - Hands-on experience integrating Kafka with Spring Boot (e.g. via Spring Cloud Stream) - Experience with containerized and cloud-native deployments - Knowledge of Kubernetes, CI/CD pipelines, and Terraform for infrastructure automation - Ability to work in a modern reactive technology stack and deliver clean, scalable, and reliable solutions - Strong attention to detail and commitment to high-quality software - Excellent communication and interpersonal skills NICE-TO-HAVE REQUIREMENTS - Knowledge of time-series data processing - Experience with time-series databases BENEFITS: - Opportunities to professional growth and development - Flexible work arrangements. 100% remote - Dynamic and collaborative work environment