Valentyn Boreiko@valentyn_boreikoFollow BadgesProblem Solving CertificationsCertificate: Problem Solving (Basic)VerifiedskillWork Experiencevalentyn_boreiko has not updated employment details yet.EducationUniversität ViennaLinksvalentyn_boreiko has not updated links details yet. Skillsvalentyn_boreiko has not updated skills details yet.