Hoang Pham@hoangphamkhanh97VietnamFollow BadgesProblem SolvingSqlRuby CertificationsCertificate: Ruby (Basic)VerifiedskillCertificate: Ruby (Intermediate)VerifiedskillWork Experiencehoangphamkhanh97 has not updated employment details yet.Educationhoangphamkhanh97 has not updated education details yet.