The certification is issued for those who have the following Java full stack tech skills: -Advanced level skills for Html/CSS/Javascript/Java J2SE -Intermediate or above level skills for Javascript Architecture (Vue & React) /front-end testing, developing tools & automation process/Relational DB/Non-SQL DB/Redis/backend architecture (SpringBoot, Spring ,Mybatis)/backend testing, developing tools & automation process/Cloud/Message Queue(Kafka, ActiveMQ)/Kubernetes.