Senior Java Backend Developer | Kafka, Spring Boot and Microservices

• More than 5 years of experience in backend development.
• Solid experience with Java 17 or higher.
• Proficiency in Spring Boot and the Spring ecosystem.
• Demonstrable experience in microservices architectures.
• Practical knowledge of Apache Kafka.
• Experience in event-driven architectures.
• Knowledge and application of hexagonal architecture.
• Experience working in cloud environments, preferably AWS.
• Best practices in testing, code quality, and continuous integration.
• C1 English, both spoken and written.
• Technical autonomy and analytical capacity.

• Experience in high-availability architectures and critical systems.
• Knowledge of Domain-Driven Design (DDD).
• Experience with CQRS.
• Docker and Kubernetes.
• Experience in banking, fintech, or insurance.
• Knowledge of observability, traceability, and monitoring.
• Experience in complex distributed architectures.

• 100% remote work from the authorized locations.
• Participation in a technological project with modern architectures.
• Backend development with Java, Spring Boot, and Kafka.
• Technical environment specialized in microservices and distributed architectures.
• Collaboration with multidisciplinary teams.
• Economic conditions to be valued according to experience and professional profile.

At KRELL Consulting, we are looking to hire a Senior Java Backend Developer with solid experience in Java 17+, Spring Boot, Kafka, and microservices architectures to participate in a backend development technological project.

We are looking for a profile with technical autonomy, experience in distributed architectures, and the ability to participate actively in design decisions and the development of scalable solutions.

• Design, develop, and maintain backend applications with Java 17 or higher.
• Develop microservices using Spring Boot and the Spring ecosystem.
• Implement messaging and asynchronous communication solutions with Apache Kafka.
• Participate in the design of Event-Driven Architectures.
• Apply hexagonal architecture principles.
• Participate in the analysis and refinement of technical requirements.
• Develop maintainable, scalable, and high-quality code.
• Implement testing and testing best practices.
• Participate in continuous integration processes.
• Collaborate with technical teams to improve backend solutions.
• Contribute to design decisions and architectural evolution.

The position allows working remotely from the following locations:

• Castilla y León: Salamanca and León.
• Extremadura: Cáceres and Badajoz.
• Comunidad Valenciana: Castellón and Alicante.
• Castilla-La Mancha: Albacete and Ciudad Real.
• Región de Murcia.
• Canarias.
• Andalusia: Granada, Jaén, Almería, Málaga, Sevilla, Huelva, Cádiz and Córdoba.

It is necessary to reside in one of the indicated locations.