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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Java Developer - Legacy & Microservices - **Company:** Qaracter Beyond your Challenge - **Location:** Santander, Spain (Remote available) - **Contract:** Permanent contract - **Skills:** Java (Programming Language), Amazon Web Services, Microsoft Azure, Cloud Computing, Databases, Continuous Integration, Software Design Patterns, Github, Python (Programming Language), PostgreSQL, OpenShift, Oracle (Applications), Redis, Mockito, Simple Object Access Protocol (SOAP), Software Engineering, SonarQube, Openapi, Postman, Spring Cloud, Spring-boot, Event Driven Architecture, Information Technology, Reactive Programming, Spring Batch, Jenkins, Microservices, Control M - **Published:** September 16, 2026 - **Apply:** https://www.buscojobs.com.es/java-developer-legacy-microservices-en-santander-ID-372121779 ## About the Role 3-5 años de experiencia utilizando las tecnologías y herramientas requeridas, pudiendo valorarse perfiles más junior. Grado universitario o superior en Computer Science, Engineering o área relacionada. Experiencia conJava 8/11, Java Core, Spring Boot, Spring Batch y Spring Cloud Stream. Experiencia enJava legacy y microservicios. Testing conJUnit, Mockito y Postman. Bases de datos:Oracle, PostgreSQL y Redis. Integración continua y control de código conGit, GitHub, Jenkins y SonarQube. Experiencia conWebSphere y OpenShift. APIsREST, SOAP y OpenAPI, así como software design patterns. Kafkay Event Driven Architecture. Se valorará especialmente Python. Control-M. Conocimientos de cloud público: Azure, AWS u otros. Español fluido. Reactive Programming. Conocimiento de productos financieros yConfirming core. Buscamos una persona con capacidad de adaptación al cambio, trabajo en equipo y comunicación, interesada en desenvolverse en entornos con distintas tecnologías y lenguajes de programación. Modalidad:100% teletrabajo desde España. Inglés:avanzado. ?About Qaracter Qaracter is an international consulting firm specializing in technology, operations, business advisory, and digital transformation. With presence in Spain, Argentina, Mexico, Brazil, and the U.S. -and activity across Europe and the UK-we partner with top-tier clients to deliver tailored, high-value solutions with real impact. At QARACTER Group, we are committed to ensuring equal opportunities and non-discrimination in all our processes, promoting an inclusive and diverse work environment. All applications are welcome regardless of sex, gender, gender identity or expression, sexual orientation, origin, ethnicity, age, disability, or any other personal or social condition, in line with our Plan de Igualdad and our commitment to equity. ## Description En Grupo Qaracter buscamos incorporar un/aJava Developer - Legacy & Microservicespara trabajar en un entorno técnico que combinamantenimiento de Java legacy en runtime empresarialydesarrollo y evolución de microservicios con Spring Boot.Buscamos un perfil técnico con experiencia enJava 8/11, conocimiento profundo deJava Corey experiencia real trabajando tanto consistemas legacy como con arquitecturas de microservicios.Funciones principalesMantenimiento y evolución de aplicacionesJava legacyen runtime empresarial.Desarrollo y evolución demicroservicios con Spring Boot.Trabajo conSpring BatchySpring Cloud Stream.Desarrollo e integración de APIsREST, SOAP y OpenAPI.Trabajo conKafkadentro de arquitecturas Event Driven.Requisitos3-5 años de experiencia utilizando las tecnologías y herramientas requeridas, pudiendo valorarse perfiles más junior.Grado universitario o superior en Computer Science, Engineering o área relacionada.Experiencia conJava 8/11, Java Core, Spring Boot, Spring Batch y Spring Cloud Stream.Experiencia enJava legacy y microservicios.Testing conJUnit, Mockito y Postman.Bases de datos:Oracle, PostgreSQL y Redis.Integración continua y control de código conGit, GitHub, Jenkins y SonarQube.Experiencia conWebSphere y OpenShift.APIsREST, SOAP y OpenAPI, así como software design patterns.Kafkay Event Driven Architecture.Se valorará especialmentePython.Control-M.Conocimientos de cloud público: Azure, AWS u otros.Español fluido.Reactive Programming.Conocimiento de productos financieros yConfirming core.Buscamos una persona con capacidad de adaptación al cambio, trabajo en equipo y comunicación, interesada en desenvolverse en entornos con distintas tecnologías y lenguajes de programación.Modalidad:100% teletrabajo desde España.Inglés:avanzado.?About QaracterQaracter is an international consulting firm specializing in technology, operations, business advisory, and digital transformation.With presence in Spain, Argentina, Mexico, Brazil, and the U.S.-and activity across Europe and the UK-we partner with top-tier clients to deliver tailored, high-value solutions with real impact.At QARACTER Group, we are committed to ensuring equal opportunities and non-discrimination in all our processes, promoting an inclusive and diverse work environment.All applications are welcome regardless of sex, gender, gender identity or expression, sexual orientation, origin, ethnicity, age, disability, or any other personal or social condition, in line with our Plan de Igualdad and our commitment to equity. ## Related Videos - [Are Your APIs Ready for AI Agents](https://www.wearedevelopers.com/videos/2004-are-your-apis-ready-for-ai-agents) - [Innovating Developer Tools with AI: Insights from GitHub Next](https://www.wearedevelopers.com/videos/1268-innovating-developer-tools-with-ai-insights-from-github-next) - [Reducing LLM Calls with Vector Search Patterns - Raphael De Lio (Redis)](https://www.wearedevelopers.com/videos/1714-reducing-llm-calls-with-vector-search-patterns-raphael-de-lio-redis) - [The user in the eye of the Cargo1492 storm](https://www.wearedevelopers.com/videos/96-the-user-in-the-eye-of-the-cargo1492-storm) - [Bringing AI Model Testing and Prompt Management to Your Codebase with GitHub Models](https://www.wearedevelopers.com/videos/1536-bringing-ai-model-testing-and-prompt-management-to-your-codebase-with-github-models) - [Local Candidates vs International Talent - Building the Very Best Dev Team](https://www.wearedevelopers.com/videos/1067-local-candidates-vs-international-talent-building-the-very-best-dev-team) ## Related Articles - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [Spanish Business Culture and Etiquette](https://www.wearedevelopers.com/magazine/353-spanish-business-culture-and-etiquette) - [Find a Developer Job: 12 Best Job Sites For Developers](https://www.wearedevelopers.com/magazine/165-find-a-developer-job-12-best-job-sites-for-developers) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [Where to Find Entry-Level Software Engineering Jobs](https://www.wearedevelopers.com/magazine/397-where-to-find-entry-level-software-engineering-jobs) - [The Best Job Search Websites of 2025](https://www.wearedevelopers.com/magazine/368-the-best-job-search-websites-of-2025)