SUNGHYUN YOON@holywarsBackend Developer at StagefiveKorea, Republic ofFollowAboutCurrentStagefiveEducationKorea Polytechnic University BadgesProblem SolvingJavaDays of CodeDays of JSSql CertificationsCertificate: Problem Solving (Basic)VerifiedskillCertificate: SQL (Basic)VerifiedskillWork ExperienceSoftware EngineerStagefive•  January 2020 - Presentdeveloperkaiem•  January 2016 - December 2019EducationKorea Polytechnic Universitymechanical engineering, BE•  March 2007 - February 2012