and transaction order functionalities. Aurora Technology Inc, Back-end Engineer, Oct 2018 ~ Oct 2019 Golang / PHP / Mysql / Redis / AWS Participated in the development of a gaming platform, which included the integration of game provider APIs and features such as event-based prize drawings. Participated in the development of a third-party payment service platform, which included integrating banking APIs and transaction order functionalities. Wellchoose Technology Inc, Back-end Engineer, Jun 2016 ~ Oct 2018 PHP / Javascript / Mysql Participated in the development of an electronic form system, providing digital solutions to clients.