pj tsai@pjtsai_twFollow BadgesProblem SolvingSql CertificationsCertificate: Problem Solving (Basic)VerifiedskillWork Experiencepjtsai_tw has not updated employment details yet.EducationNational Taiwan University (NTU), TaipeiLinkspjtsai_tw has not updated links details yet. Skillspjtsai_tw has not updated skills details yet.