Chang sun hyuk@wkdtjsgur100SW DeveloperFollow BadgesProblem SolvingJavaDays of Code CertificationsCertificate: Problem Solving (Basic)VerifiedskillCertificate: Problem Solving (Intermediate)VerifiedskillCertificate: Problem Solving (Advanced)VerifiedskillWork Experiencewkdtjsgur100 has not updated employment details yet.EducationDankook UniversityLinksPortfoliohttps://wkdtjsgur100.github.io/ Skillswkdtjsgur100 has not updated skills details yet.