Seungyoon Paik@psyoon77Follow BadgesProblem SolvingJava CertificationsCertificate: Problem Solving (Basic)VerifiedskillCertificate: Problem Solving (Advanced)VerifiedskillWork Experiencepsyoon77 has not updated employment details yet.Educationpsyoon77 has not updated education details yet.Linkspsyoon77 has not updated links details yet. Skillspsyoon77 has not updated skills details yet.