Long Trương Hoàng@truonghoanglong1VietnamFollow BadgesProblem SolvingJavaSql CertificationsCertificate: Problem Solving (Basic)VerifiedskillCertificate: Problem Solving (Intermediate)VerifiedskillWork Experiencetruonghoanglong1 has not updated employment details yet.Educationtruonghoanglong1 has not updated education details yet.