Pham Kien@phamkien1998Viet NamFollow BadgesProblem SolvingCPPJavaPython CertificationsCertificate: Problem Solving (Basic)VerifiedskillCertificate: Problem Solving (Intermediate)VerifiedskillWork Experiencephamkien1998 has not updated employment details yet.Educationphamkien1998 has not updated education details yet.