Young-Jun Ko@yjk21Follow BadgesProblem Solving CertificationsCertificate: Problem Solving (Basic)VerifiedskillCertificate: Problem Solving (Advanced)VerifiedskillWork Experienceyjk21 has not updated employment details yet.Educationyjk21 has not updated education details yet.LinksGithubhttps://github.com/yjk21 Skillsyjk21 has not updated skills details yet.