S Liu@bjc_liuFollow BadgesProblem Solving CertificationsCertificate: Problem Solving (Basic)VerifiedskillCertificate: Problem Solving (Intermediate)VerifiedskillWork Experiencebjc_liu has not updated employment details yet.Educationbjc_liu has not updated education details yet.Linksbjc_liu has not updated links details yet. Skillsbjc_liu has not updated skills details yet.