Experteer Overview As a Java Backend Engineer at Julius Baer in Madrid, you will contribute to a business-critical enterprise platform using Java/Jakarta EE. You collaborate with technical leads, product owners, QA, and other teams to deliver robust software across backend and frontend domains. You will design REST APIs, integrate with internal and external systems, and drive improvements in performance, monitoring, and deployment. This role offers impact through shaping scalable, maintainable solutions in a dynamic, cross-functional environment. Compensaciones / Incentivos
• Develop and maintain backend applications using Java 21, Jakarta EE, JPA/Hibernate, and Maven
• Design and implement REST APIs and integrate with internal and external systems
• Contribute to enterprise integrations using SOAP, JMS, and messaging technologies
• Collaborate with Product Owners, Business Analysts, and Architects to translate requirements into technical solutions
• Develop database functionality with Oracle, including data modelling and optimization
• Write clean, maintainable, testable code following engineering standards




• Create and maintain automated tests (unit and integration)
• Troubleshoot defects, performance issues, and production incidents
• Contribute to monitoring, observability, and continuous improvement initiatives
• Support deployment, testing, and release activities across environments Responsabilidades
• Strong hands-on Java development experience
• Experience with Java/Jakarta EE, JPA/Hibernate, and Maven
• Experience building and consuming RESTful APIs
• Working knowledge of Oracle databases, SQL, and data persistence
• Understanding of software design principles and patterns
• Experience with automated testing using JUnit and Mockito
• Familiarity with source control and collaborative workflows
• Strong problem-solving skills and ability to work in Agile teams
• Good communication and collaborative mindset
• Ability to work across backend and frontend domains (full-stack) Requisitos principales •

📌 Java Backend Engineer 100% (Madrid)
🏢 Julius Bär
📍 Madrid