Senior Java & Cloud Developer (EU Project – Hybrid in Luxembourg) Location: Luxembourg (2 days onsite per week) Rate: €570 per day (freelance contract) Duration: 4 years Apply by: 23 October 2025 About the Role Join a prestigious long-term IT project at a major EU institution. We’re looking for a Senior Java & Cloud Developer to design, build, and maintain modern, secure software systems that handle legislative and legal documents across the EU. You’ll work on complex technical solutions within a hybrid team environment, combining hands-on development with solution design and integration. This position offers a 4-year contract, a hybrid setup (2 days onsite per week in Luxembourg), and the opportunity to contribute to software systems used across Europe. Key Responsibilities Design and develop cloud-based and on-premise software systems for document management and dissemination. Build and integrate microservices, APIs (REST/SOAP), and scalable Java-based components. Implement data ingestion, processing, and storage pipelines in cloud environments (AWS). Support solution design, UI implementation, testing, and rollout. Collaborate with developers, architects, and EU stakeholders to ensure reliable, secure delivery. Maintain technical documentation and participate in project and stakeholder meetings. Technical Skills Languages & Frameworks: Java, JavaScript (NodeJS), Spring Boot Web & APIs: RESTful, SOAP, Microservices architecture Formats: Akoma Ntso (AKN4EU), XML, HTML, XHTML, Formex Databases: Oracle, MySQL, PL/SQL Cloud & DevOps: AWS (EC2, S3, Terraform), Docker, Atlassian suite (Jira, Bitbucket, Confluence, Bamboo) Application Servers: WebLogic, Tomcat Testing & QA: Sonar, JUnit, MUnit Your Profile Proven experience in software engineering and cloud solution design. Strong skills in Java development and microservices-based architecture. Experience with document management or data publishing systems is a plus. Familiar with AWS, Docker, and modern DevOps pipelines. Excellent communication and documentation abilities in English (C1) and French (B2) EU citizenship required (for project security clearance). Why This Role Work on a flagship EU digital transformation project with long-term stability. Flexible hybrid model – only 2 days onsite per week in Luxembourg. Collaborative, international team environment. Excellent day rate (€570/day) with a 4-year contract horizon.