WTF DUDE@wtfdudeBackend developer at ShanghaiChinaFollow BadgesProblem SolvingJavaDays of Code CertificationsCertificate: Problem Solving (Basic)VerifiedskillCertificate: Problem Solving (Intermediate)VerifiedskillCertificate: Problem Solving (Advanced)VerifiedskillWork Experiencewtfdude has not updated employment details yet.Educationwtfdude has not updated education details yet.