**Applications are accepted only from candidates residing in Madrid or nearby areas. This position is exclusively for individuals holding a valid work permit in Spain. The company does not handle visa or work permit applications, nor does it cover relocation expenses.** **Seniority:** Senior **Job Responsibilities:** Participation in all phases of the software development lifecycle, from design through implementation and maintenance. Collaboration with multidisciplinary teams to develop robust and scalable applications using Java. Migration and maintenance of legacy applications developed in COBOL. Optimization and refactoring of existing code to improve performance and maintainability. Resolution of complex issues and support for end users. **Mandatory Skills** ---------------------- * More than 4 years of experience in application development with Java. * Proven experience in COBOL application development. * Advanced knowledge of software design patterns and architecture. * Experience with relational databases such as Oracle or SQL Server. * Familiarity with agile development methodologies such as Scrum or Kanban. **Desirable Skills** -------------------- * Experience in modernization and migration of legacy applications. * Knowledge of DevOps tools such as Jenkins, Docker, and Kubernetes. * Experience with cloud-based solutions (AWS, Azure, Google Cloud). * Certifications in Java and COBOL. * Strong communication and leadership skills. **Additional Details** ------------------------ * Full-time employment with excellent working conditions. * Hybrid work model requiring on-site presence at the Madrid offices. * Opportunities for professional growth and career development. * Additional benefits including health insurance and continuous training. **Submit your CV and apply today to join our team of software development experts.**