Ronald Savianto@rsaviantoFollow BadgesProblem SolvingJavaSqlRuby CertificationsCertificate: Problem Solving (Basic)VerifiedskillWork ExperienceEngineerHappyFresh•  2014Educationrsavianto has not updated education details yet.Linksrsavianto has not updated links details yet. Skillsrsavianto has not updated skills details yet.