Contact Address

Rua Julieta Ferrão N.º 12 2º Piso, 202 1600–131 Lisboa, Portugal

Entrar em contacto Get in Touch

Tel.: +351 214 171 161
Fax: +351 214 177 610
(Chamada para a rede fixa nacional)(Call to the national fixed network)

Java Backend Developer

# Think Data Be Smart #


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 Backend Developer (Hybrid – Lisbon)!


What You’ll Do:

  • Design, develop, and maintain Java-based microservices using Spring Boot, following microservices architecture principles and best practices;
  • Write clean, efficient, and maintainable code that follows best practices and coding standards;
  • Optimize application performance through performance tuning, code refactoring, and architectural improvements;
  • Troubleshoot and debug issues, identifying root causes and implementing effective solutions.



  • Bachelor’s degree in Computer Science, Information Technology, or a related field;
  • 5+ years of experience in Java development;
  • Strong understanding of microservices architecture principles, design patterns, and best practices;
  • Proficiency in Java programming language and related technologies such as Spring, Spring Boot, Hibernate, etc;
  • Experience in Relational Databases such as Oracle, PostgreSQL, SQL Server, etc;
  • Experience with containerization technologies such as Docker and orchestration tools like Kubernetes is a plus;
  • Knowledge of cloud platforms such as AWS is desirable;
  • Portuguese and English fluency, both written and verbal.


At DataSmart, 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 LinkedIn for updates on career opportunities, company news, and industry insights! For further details, visit us at


#JoinOurTeam #DataSmart #ThinkDataBeSmart #Java #Spring #SpringBoot #Backend #Microservices #AWS

Do you accept the challenge?
We are waiting for you!