Yudi Umar@tiok_cekFollow BadgesProblem SolvingJavaSql CertificationsCertificate: Problem Solving (Basic)VerifiedskillCertificate: Problem Solving (Advanced)VerifiedskillWork Experiencetiok_cek has not updated employment details yet.Education-Linkstiok_cek has not updated links details yet. Skillstiok_cek has not updated skills details yet.