Java Developer

Tel.: +351 214 171 161 - Lisboa

Tel.: +351 253 120 734 - Braga

Fax: +351 214 177 610

(Chamada para a rede fixa nacional) (Call to the national fixed network)

About Us: DataSmart 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 a Java 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, PostgreSQL) 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 Arc