Job Summary: SINTAXE is seeking Java Backend Developers to join challenging projects in the energy sector, offering a modern and collaborative technological environment. Key Highlights: 1. Integration into projects with significant impact in the energy sector 2. Modern and collaborative technological environment 3. Motivation to advance technically SINTAXE is currently reinforcing its team to integrate into challenging projects in the energy sector. We are looking for Java Backend Developers (Junior and Mid profiles) motivated to advance technically within a collaborative and demanding environment. **Required Profile:** * 2–5 years of experience in Java Backend development * Higher education degree in Information Technologies or related field * Experience with Java 17+ * Knowledge of Spring / Spring Boot * Experience in REST API development * Solid knowledge of SQL and PostgreSQL * Experience with Git * Agile methodology (Scrum/Kanban) * Fluent English (spoken and written) **Preferred Qualifications:** * Experience in energy sector projects (utilities, renewables, smart grids) * Experience with Docker and Kubernetes * Experience with CI/CD **We Offer:** * Integration into projects with significant impact in the energy sector * Modern and collaborative technological environment * Competitive salary package commensurate with experience **Applications:** \ The original job posting can be found at: https://www.itjobs.pt/oferta/512363/java\-backend\-developer\-perfis\-junior\-e\-mid