> Markdown version of [/jobs/ext/4154273-back-end-developer](https://www.wearedevelopers.com/jobs/ext/4154273-back-end-developer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Back-End Developer - **Company:** GRUPO DATCON - **Location:** Madrid, Spain - **Contract:** Permanent contract - **Skills:** Testing (Software), Java (Programming Language), Spring Security, Agile Methodology, Cloud Computing, Continuous Integration, Relational Databases, Junit, Scrum Methodology, Mockito, Web Application Security, Software Systems, Spring-boot, Backend, Spring Data, Containerization, Kubernetes, Docker, Microservices - **Published:** October 23, 2026 - **Apply:** https://www.adzuna.es/details/5938515725 ## About the Role Professional experience as a Back-End Developer, with a strong focus on Java-based development. Solid knowledge of Java and the Spring ecosystem, including Spring Boot, Spring Security, and Spring Data. Experience working with microservices architectures. Commitment to writing clean, maintainable, and well-structured code. Good understanding of software testing principles and hands?on experience with tools such as JUnit and Mockito. Familiarity with CI/CD practices and automated software delivery processes. Experience with cloud technologies and containerization tools such as Docker or Kubernetes. Familiarity with relational and non?relational databases. Experience working with agile methodologies such as Scrum or Kanban. Ability to communicate effectively in English in international technical environments. Strong problem?solving skills and a proactive, collaborative mindset. Nice to Have: Experience with Camunda or other Business Process Management (BPM) platforms. Knowledge of workflow automation and process orchestration. ## Description Back-End Developer with experience in Java to join our international team and contribute to the design and development of robust, scalable, and secure web applications. In this role, you will work with Java, Spring, and microservices architectures, participating in technical discussions and contributing to design decisions. You will collaborate with international, cross-functional teams in an agile environment and play an active role in delivering high-quality software solutions and continuously improving development processes.