James Song@James_Song2019Follow BadgesProblem SolvingJava CertificationsCertificate: Problem Solving (Intermediate)VerifiedskillCertificate: Problem Solving (Basic)VerifiedskillCertificate: Problem Solving (Advanced)VerifiedskillWork ExperienceJames_Song2019 has not updated employment details yet.EducationHarbin Institute of TechnologyLinksJames_Song2019 has not updated links details yet. SkillsJames_Song2019 has not updated skills details yet.