In recent days, most of works are focused on frontend using javascript frameworks (nodejs, angular). Contributed to building and maintaining the website. Collaborated Elastic-Search for database optimization and better query managing. - Angular Angular-Routing, Angular Material Design, Angular Metronics, Angular Custom Directive/Service, Angular upgrade from 1.0~3.0 to latest version, GraphQL - React React-Redux, Saga, React-Hook, React-Routing, Apollo GraphQL, React Core UI, Ant Design, Material Design, React Argon (Admin template), Reactstrap, Gatsby, React styled Component - Vuejs Vuetify, Vuex-store, vuex-routing, vue-component