Keonil Kim is a Data Engineer at Viva Republica (Toss) since July 2020, contributing to the TUBA Team with expertise in data analytics/BI, AB testing, client messaging, and user segmentation. Prior to this role, Keonil held positions as a Data Engineer within the Data Platform Team at the same company and worked at HYPERCONNECT in various data engineering roles from February 2019 to July 2020. Keonil's experience also includes a summer internship at NAVER Corp, a software engineering role at Hyperconnect, and undergraduate research at KAIST. Keonil is pursuing a Bachelor of Science in Computer Science at the Korea Advanced Institute of Science and Technology, with studies also completed at the Technical University of Denmark in 2018.