Hiroki Yamakawa@hrkymkwSoftware EngineerFollow BadgesProblem SolvingJava CertificationsCertificate: Problem Solving (Basic)VerifiedskillWork Experiencehrkymkw has not updated employment details yet.Educationhrkymkw has not updated education details yet.Linkshrkymkw has not updated links details yet. Skillshrkymkw has not updated skills details yet.