At Oracle Code One 2019 Rafael Guimares, Otavio Santana, and I presented this 45 minutes session for the first time. We provided a case of cloud migration and modernization of a widely use monolithic system with the help of MicroProfile, Jakarta EE, TomEEand Tribestream API Gateway in the Brazilian medical Industry that involved several challenges such as the fifth-largest population and largest territory in the world; technical complexity; and diversity, both geographic and economic.