Sing Y W@stupidsingSenior Java DeveloperHong KongFollow BadgesProblem Solving CertificationsCertificate: Problem Solving (Basic)VerifiedskillCertificate: Problem Solving (Intermediate)VerifiedskillCertificate: Problem Solving (Advanced)VerifiedskillWork Experiencestupidsing has not updated employment details yet.Educationstupidsing has not updated education details yet.