* Bachelor’s degree in Computer Science or related field, completed or in progress; * Java development experience. * Proficiency in languages and frameworks: Java Web and Mobile – Android * Knowledge of front-end technologies: HTML, CSS, JavaScript; * Experience with relational databases, specifically PostgreSQL; * Ability to implement and customize solutions in GSAN to ensure efficiency in commercial management and data control; * Experience with agile methodologies and teamwork. * Ability to creatively solve problems and collaborate on projects involving innovation and sustainability. Preferred Qualifications: * Familiarity with frameworks: Struts, EJB, Hibernate, MVC architecture, WildFly server, PostgreSQL database * Practical experience in administration and optimization of commercial systems for the sanitation sector.