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90,000+ live jobsSenior Java Backend Developer | Spring Boot, MQ Series and Kafka
Remote from Spain·Added yesterday (last checked 6 Nov)
103 open roles
Our summary
- Work mode
- Remote from Spain
- English
- Required
- Experience
- 4+ years



Visa options
The ad doesn’t mention sponsorship
Not a refusal, but not a yes. Worth asking in your first message.
Skills
This job advert was originally written in Spanish.
Requirements
What we're looking for
- Minimum 4 years of experience in backend development.
- Experience with Java and Spring Boot.
- Experience with MQ Series.
- Experience with PostgreSQL.
- Knowledge of Kafka.
- Knowledge of Kubernetes and Helm.
- Experience in REST API development.
- Knowledge of Maven and Git.
- Experience with microservices architectures.
- Knowledge of continuous integration and DevOps practices.
- English B2+.
Nice to have
- Experience in event-driven architectures.
- Experience in enterprise systems integration.
- Knowledge of JavaScript, jQuery, HTML and CSS.
Pay & benefits
What you'll get
- Long-term technological project.
- 100% remote work model.
- Participation in enterprise application development and integration projects.
- Work with Java, Spring Boot, Kafka and Kubernetes.
- Collaboration with specialized technical teams.
- Economic conditions to be valued according to experience.
The role
At KRELL Consulting, we are looking to hire a Senior Java Backend Developer with experience in Java, Spring Boot, MQ Series and PostgreSQL to participate in a technological project for the development and integration of enterprise applications.
We are looking for a profile with experience in microservices architectures, systems integration, and knowledge of container and messaging technologies.
What you'll do
- Develop and maintain backend applications with Java and Spring Boot.
- Work with MQ Series messaging systems.
- Develop solutions with PostgreSQL databases.
- Design and implement REST APIs.
- Participate in the development of microservices-based architectures.
- Work with event-driven solutions using Kafka.
- Collaborate in the deployment of containerized applications on Kubernetes.
- Participate in continuous integration processes and DevOps practices.
- Collaborate in the integration of enterprise applications and systems.
- Participate in the maintenance and evolution of backend solutions.
About Krell Consulting
Krell Consulting is a Spanish IT staffing and talent management firm founded in 2006. It provides services including outsourcing, direct selection, IT training, and RPO (Recruitment Process Outsourcing), with a focus on technology roles. The company operates primarily in Spain, offering both remote and hybrid positions across various tech disciplines.
- Industry
- IT Services
- Founded
- 2006
- Headquarters
- Madrid, Spain
- In Spain
- Madrid, Barcelona, Oviedo
Good to know if you are moving
- 100% Spanish capital, founded in 2006
- Offers remote and hybrid roles across Spain, including Madrid, Barcelona, and Oviedo
- Specializes in IT staffing, outsourcing, and training
- Provides services in English and Spanish, with some roles requiring advanced English
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