B2x - The Omnichallenge Company is seeking motivated individuals to join as Java Back-end Senior Developers. The ideal candidate will have a degree or diploma in science, several years of experience in developing backend enterprise applications on Java stacks, and be available to join immediately. MANDATORY REQUIREMENTS Minimum of 4 years' experience in enterprise application development using Java / JEE Application design experience with EJB and JPA persistence Experience in relational database design and SQL query development Knowledge of REST paradigm and web services development with JAX-RS Knowledge of Oracle RDBMS or PostgreSQL DESIRABLE REQUIREMENTS Experience with ELK stack or NoSQL databases Experience developing single-page web applications with React Experience in frontend development using JSP / Struts Proficiency in English PAY GRADE Salary will be evaluated based on the candidate's experience and level. This advertisement is open to candidates of all genders (L. 903 / 77). Candidates should send their CV along with consent for data processing, as per: Article 13 of Legislative Decree No. 196/2003 - "Personal Data Protection Code" Articles 6 and 13 of GDPR 679/16 - "European Regulation on Personal Data Protection" J-18808-Ljbffr J-18808-Ljbffr