Oliver Lengwinat@RefusedGermanyFollow BadgesProblem SolvingCPPPythonSql CertificationsCertificate: Python (Basic)VerifiedskillCertificate: Python (Intermediate)VerifiedskillCertificate: C++ (Basic)VerifiedskillWork ExperienceRefused has not updated employment details yet.EducationRefused has not updated education details yet.