Java Developer
We are looking for a Senior Java Backend Developer to join our dynamic team.
What you'll do:
Actively participate in an Agile development team throughout the entire development cycle.
Design, develop, and maintain testable, efficient, and reusable backend code;
Build and optimize scalable microservices architecture;
Develop and maintain RESTful APIs to ensure seamless communication between backend services and other system components;
Conduct code reviews and ensure high-quality coding standards and best practices;
Troubleshoot and debug backend applications to optimize performance, scalability, and user experience.
Job requirements
What you will need to bring:
Degree in Technology, Computer Engineering, or a related field;
Strong proficiency in Java (11/17) with a solid understanding of object-oriented programming principles;
Hands-on experience with Spring Boot 3 for developing microservices-based applications;
Proficiency in build tools such as Maven and version control tools like Git;
Experience designing and developing RESTful APIs and working with API documentation tools;
Familiarity with Continuous Integration tools such as Jenkins, XL Deploy, and XL Release;
Experience with SQL databases (e.g., Oracle) and knowledge of database optimization techniques;
Understanding of microservices architecture and cloud-based deployments;
Fluent in English and French is a plus.
What can Syone offer me:
Integration in an organization with profound and sustained growth and involvement in pioneering projects with innovative technological solutions;
Strong IT training plans;
Professional evolution with intervention in ambitious technological projects, both national and internationally.
About the Company
More jobs at Syone
-
Data Engineer - Syone
Lisbon (Hybrid), Porto (Hybrid) · · Aug 19, 2026
-
AI Platform Engineer - Syone
Lisbon (Hybrid), Porto (Hybrid) · Hybrid · Aug 19, 2026
-
.NET Full Stack Developer
Lisbon (Hybrid), Porto (Hybrid) · Hybrid · Aug 19, 2026
-
Senior Java Developer | French Speaker
Porto (Hybrid), Lisbon (Hybrid) · · Aug 19, 2026
-
QA Automation Tester
Porto (Hybrid), Lisbon (Hybrid), Portugal (Remote) · Remote · Aug 19, 2026