Richard Zhou@richard_zhouIndonesiaFollow BadgesProblem SolvingJavaPythonSql CertificationsCertificate: Problem Solving (Basic)VerifiedskillCertificate: Problem Solving (Intermediate)VerifiedskillCertificate: Problem Solving (Advanced)VerifiedskillWork Experiencerichard_zhou has not updated employment details yet.Educationrichard_zhou has not updated education details yet.