Oleksandr Ulizko@ulizmanFollow BadgesProblem SolvingDays of JSRuby CertificationsCertificate: Ruby (Basic)VerifiedskillCertificate: Ruby (Intermediate)VerifiedskillWork Experienceulizman has not updated employment details yet.Educationulizman has not updated education details yet.Linksulizman has not updated links details yet. Skillsulizman has not updated skills details yet.