> Markdown version of [/jobs/ext/4641860-java-developer](https://www.wearedevelopers.com/jobs/ext/4641860-java-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). --- # Java Developer - **Company:** Infoser Technological solutions, Hardware, Big Data Experts - **Location:** Madrid, Spain (Remote available) - **Contract:** Permanent contract - **Skills:** Java (Programming Language), Artificial Intelligence, Software Quality, Relational Databases, Hibernate (Java), Java Persistence API, Junit, Apache Maven, Object-Relational Mapping, SQL Databases, Spring-boot, Backend, Git, Restful APIs - **Published:** November 9, 2026 - **Apply:** https://www.jobleads.com/es/job/java-developer--madrid--e9e3dd0ae9bb59c148b2d5f5373ba14d0 ## About the Role * Strong experience with Java and Spring Boot. * Knowledge of REST APIs, Hibernate/JPA, SQL, Git, Maven and JUnit. * Some knowledge or experience with AI technologies and their use in applications. * Good communication skills and C1 English. ## Description Infoser NT is looking for a Java Developer to join an international project focused on developing and evolving business-critical applications. 100% remote What you'll do * Develop and maintain applications and backend services using Java * Build REST APIs and integrate applications with other systems. * Work with relational databases, SQL and ORM tools such as Hibernate/JPA. * Contribute to testing, code quality and technical improvements. * Apply your knowledge of AI technologies to support the development of AI-enabled applications. * Collaborate with international development, product and QA teams. What we're looking for * Strong experience with Java and Spring Boot. * Knowledge of REST APIs, Hibernate/JPA, SQL, Git, Maven and JUnit. * Some knowledge or experience with AI technologies and their use in applications. * Good communication skills and C1 English.