Roger Chen@rc554Follow BadgesProblem Solving CertificationsCertificate: Problem Solving (Basic)VerifiedskillCertificate: Problem Solving (Intermediate)VerifiedskillWork Experiencerc554 has not updated employment details yet.Educationrc554 has not updated education details yet.Linksrc554 has not updated links details yet. Skillsrc554 has not updated skills details yet.