KyungSu Tak@kyungsu_tFollow BadgesProblem Solving CertificationsCertificate: Problem Solving (Basic)VerifiedskillWork Experiencekyungsu_t has not updated employment details yet.EducationYonsei University, SulLinksLinkedinhttp://kr.linkedin.com/pub/kyungsu-tak/a7/b27/422/ Skillskyungsu_t has not updated skills details yet.