Heejin Cha@heejincha1219Software Engineer at SecuLetterKorea, Republic ofFollowAboutCurrentSecuLetter BadgesProblem Solving CertificationsCertificate: Problem Solving (Basic)VerifiedskillWork ExperienceSenior Software EngineerSecuLetter• August 2016 - PresentEducationheejincha1219 has not updated education details yet.