marek barak@mrk_barakSlovak RepublicFollowAboutCurrentVisualDNAEducationUniversity of Economics in Bratislava, Bratislava BadgesProblem Solving CertificationsCertificate: Problem Solving (Basic)VerifiedskillWork Experiencemrk_barak has not updated employment details yet.EducationUniversity of Economics in Bratislava, Bratislava