Java Developer for Mobility Business (m/f/d) Job ID: 501056 Posted since: 30-Mar-2026 Organization: Mobility Field of work: Research & Development Company: SIEMENS MOBILITY, UNIPESSOAL LDA Status: Full‐time, Permanent, Hybrid (Remote/Office) Location: Aveiro, Portugal – Software Development Center Overview Join Siemens Mobility's Sqills to develop S3 Passenger, a cutting‐edge platform enhancing public transport solutions. Key responsibilities Collaborate on software used to find and book seats for major international travel brands like Eurostar, Renfe, and SNCF. Optimize asynchronous request processing for high‐availability and high‐performance components, and secure processes. Improve development pipelines and analyze new feature requests. Continuously refactor code to enhance quality and performance. Design and maintain mission‐critical Java microservices. Work collaboratively within a diverse, innovative team. Communicate effectively in English and communicate ideas clearly. Qualifications Proficiency in Java and experience with microservices architecture. Experience with asynchronous processing, high‐availability, and performance tuning. Strong knowledge of code quality best practices and refactoring. Solid communication skills in English. Desirable technical requirements – Artificial Intelligence Familiarity with generative AI tools (ChatGPT, Copilot, Gemini) for productivity and data analysis. Experience implementing AI‐assisted data analysis or AI‐generated content. Ability to formulate prompts, assess AI output, and adapt results for project contexts. Behavioral competencies Technological curiosity and continuous learning. Critical thinking and adaptability to new digital tools. Proactivity in identifying improvement opportunities using AI. Benefits Attractive remuneration package and career development opportunities. Free health insurance. Participation in Siemens Pension Plan and Siemens Share Program. Two volunteering days per year. Access to Siemens Learning Platform and courses on Coursera, GetAbstract, Harvard Business Review, LinkedIn, and others. Exclusive discounts on Siemens, Bosch, and Balay brands. We value diversity and encourage applications from candidates with diverse backgrounds, including those with physical barriers or chronic illnesses. We are committed to equitable opportunities and an inclusive workplace. #J-18808-Ljbffr