Syone
OpenJava Developer
- Location
- Porto (Hybrid); Lisbon (Hybrid)
- Posted
- Mar 4, 2026
- Last seen
- Aug 7, 2026
About the role
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.
