Wilfried Wissmann@wilfried_wissma1Follow BadgesProblem SolvingCPPJavaDays of CodeDays ofStatisticsSql CertificationsCertificate: Problem Solving (Basic)VerifiedskillWork ExperienceRheinbahn AGEducationwilfried_wissma1 has not updated education details yet.Linkswilfried_wissma1 has not updated links details yet. Skillswilfried_wissma1 has not updated skills details yet.