Henry Naoto Ishiyama@henryishiyamaJapanFollow BadgesProblem SolvingJavaDays of CodeC languageRuby CertificationsCertificate: Problem Solving (Basic)VerifiedskillCertificate: C (Basic)VerifiedskillCertificate: C (Intermediate)VerifiedskillWork Experiencehenryishiyama has not updated employment details yet.Educationhenryishiyama has not updated education details yet.