Bert Knerz@knerzbertDeveloping SoftwareGermanyFollow BadgesProblem Solving CertificationsCertificate: Problem Solving (Basic)VerifiedskillCertificate: JavaScript (Basic)VerifiedskillCertificate: SQL (Basic)VerifiedskillWork Experienceknerzbert has not updated employment details yet.Educationknerzbert has not updated education details yet.