The future of rail isn’t just about movement, it’s about intelligence, security, and connection. We unite rail expertise with digital innovation to create smarter, safer, and more sustainable transportation solutions. Technology here speaks with purpose: accelerating digitalization, embedding cybersecurity, and shaping the next era of rail.Behind every breakthrough are people, their talent, creativity, and drive to push boundaries. Together, we’re building confidence, resilience, and a new standard for connected mobility powered by innovation.This position is for Stadler Digital Labs, a joint venture between Stadler Rail and Critical Software serving as the digital competence center for the Stadler Group.Check-out the website: brings us to you, the person with:At least 3 years of experience using Java, Quarkus, Kafka, and PostgreSQL Knowledge of microservices architectures Experience with relational databases, particularly PostgreSQL Familiarity with event-driven architectures and message streaming using Kafka Experience with highly scalable and performant backend services built on Quarkus Experience in working autonomously within an agile environment with automated testing and continuous integration and delivery Capacity to deliver high quality, reusable and testable software components for highly scalable backend services using Java and Quarkus Ability to support the Product Owner with architectural insights and technical knowledge Expertise to be part of the team planning and improvement using agile methodologies Fluency in English (both written and spoken) What can you expect from us?Work that fits your life, not the other way aroundOffices designed to make you feel like you belongA team that knows how to work hard, but also how to have funPay that makes you feel valued, plus performance-based rewardsFringe Benefits especially planned to support you and those who are important to youYour growth is our priority: training, support, and opportunities!Join us and help us to improve the efficiency and sustainability of rail mobility.Location: Coimbra and Lisbon.