Full Stack Developer – Java / Node.js / React
Confirmed on the employer's own hiring board on Oct 14, 2026. First seen by Alion on Oct 1, 2026. Syone scores B on the Alion truth index.
Job details
What you will do
Develop and maintain Full Stack applications using Java, Node.js and React.
Develop and integrate REST APIs and backend services.
Work with Java / Spring Boot and Node.js on the backend.
Develop modern and responsive interfaces using React.
Work with databases and contribute to scalable and maintainable solutions.
Collaborate with developers, QA and other stakeholders within an Agile/Scrum environment.
Participate in the full software development lifecycle, from development to testing and deployment.
Contribute to code quality, performance and continuous improvement.
What you need to bring
Professional experience as a Full Stack Developer / Software Engineer.
Solid experience with Java and Spring Boot.
Hands-on experience with Node.js.
Good experience with React.js.
Experience developing REST APIs.
Good knowledge of JavaScript and/or TypeScript.
Experience with databases and SQL.
Familiarity with microservices architecture is a plus.
Experience with Git and CI/CD is a plus.
Good communication skills in English.
By applying, you accept our GDPR policies. Your personal data in your CV and documents will be used solely for processing your application at SYONE. SYONE, S.A. (NIPC 504729624) is the data controller, located at Rua Alfredo da Silva, 8-A, Edifício Stern, Piso 3D, 2610-016 Amadora. We will use your data to tailor your application to relevant vacancies and for potential employment contracts. If selected, your data will be kept during your employment and for at least two years after. If not selected, your data will be kept for two years for future vacancies and then deleted, except for your contact details. You can exercise your rights (access, rectification, erasure, etc.) by emailing [email protected]. Your data may be shared with our HR service providers and will be stored securely. You can withdraw your consent at any time. We will not use your data for other purposes without your express consent. For more information, email [email protected]. Your data will not be used for other purposes without your express consent.