이재국 @irnd04Follow BadgesProblem Solving CertificationsCertificate: Problem Solving (Intermediate)VerifiedskillCertificate: Problem Solving (Basic)VerifiedskillWork Experienceirnd04 has not updated employment details yet.Educationirnd04 has not updated education details yet.Linksirnd04 has not updated links details yet. Skillsirnd04 has not updated skills details yet.