Christian Willner@vaengGermanyFollowAboutCurrentDESY BadgesProblem SolvingCPPJavaPythonDays of CodeDays ofStatisticsSql CertificationsCertificate: Problem Solving (Basic)VerifiedskillCertificate: Problem Solving (Intermediate)VerifiedskillCertificate: Python (Basic)VerifiedskillCertificate: Python (Intermediate)VerifiedskillCertificate: Python (Advanced)VerifiedskillCertificate: SQL (Basic)VerifiedskillWork Experiencevaeng has not updated employment details yet.Educationvaeng has not updated education details yet.