Pintian Zhang@pintianzDeveloper at Papertinker StudioUnited StatesFollow BadgesProblem SolvingJava CertificationsCertificate: Problem Solving (Basic)VerifiedskillCertificate: Problem Solving (Intermediate)VerifiedskillWork Experiencepintianz has not updated employment details yet.Educationpintianz has not updated education details yet.