Jonah Polack@jonah_polackFollow BadgesProblem Solving CertificationsCertificate: Problem Solving (Basic)VerifiedskillWork Experiencejonah_polack has not updated employment details yet.EducationTechnische Hochschule KölnLinksPortfoliohttps://www.xing.com/profile/Jonah_Polack Skillsjonah_polack has not updated skills details yet.