Jaroslav Jahoda@RubyStoneFollow BadgesProblem Solving CertificationsCertificate: Problem Solving (Basic)VerifiedskillCertificate: Problem Solving (Advanced)VerifiedskillWork ExperienceRubyStone has not updated employment details yet.EducationCzech Technical University of Prague, PragueLinksRubyStone has not updated links details yet. SkillsRubyStone has not updated skills details yet.