Tel.: +351 214 171 161 - LisboaTel.: +351 253 120 734 - BragaFax: +351 214 177 610(Chamada para a rede fixa nacional) (Call to the national fixed network)About Us:Data Smart is a Portuguese company, positioning itself as a consulting company of excellence, with over 20 years of existence. We are specialized in Technologies and Information Systems services, for the Portuguese and International markets. We pride ourselves on fostering a culture of involvement, experience, and excellence.Join our team as aJava Developer(Hybrid – Lisbon)!*We are hiring Mid and Senior profiles!What You'll Do:Design, develop, and maintain scalable backend applications using Java and Spring/Spring Boot.Develop and maintain RESTful APIs and backend services for enterprise applications.Contribute to system design decisions and implement solutions aligned with microservices and modern application architectures.Work with relational databases, ensuring efficient queries, data integrity, and optimized performance.Implement persistence layers using JPA and Hibernate.Collaborate with development and operations teams to integrate solutions into CI/CD pipelines.Participate in Agile/Scrum ceremonies, contributing to sprint planning, reviews, and continuous improvement.Perform code reviews and ensure high standards in code quality, performance, and maintainability.Qualifications:Minimum 3 years of professional experience in Java development.Strong experience with Java and Spring/Spring Boot frameworks.Experience working with relational databases (Oracle, Postgre SQL) and strong SQL knowledge.Hands‐on experience implementing persistence layers using JPA and Hibernate.Knowledge of application architectures, including microservices-based architectures and patterns such as Hexagonal Architecture.Experience working with CI/CD pipelines and modern development practices.Familiarity with Agile/Scrum methodologies.Strong analytical and problem‐solving skills with attention to code quality.English proficiency at a professional level (minimum B2).Living in Portugal and available to work in a hybrid model in Lisbon.AtData Smart, you will have the opportunity to integrate into a solid company and participate in projects of high recognition, nationally and internationally, with an appealing technological environment and career progression.Excellence in the way to the future!Connect with Us : Follow us on Linked In for updates on career opportunities, company news, and industry insights! For further details, visit us at Our Team #Data Smart #Think Data Be Smart #Java #Spring Boot #Microservices #JPA #Hibernate #CI/CD