Abdul Hannan@Abdul_Hannan_021Principal Backend EngineerFollow BadgesProblem SolvingJava CertificationsCertificate: Java (Basic)VerifiedskillWork ExperienceAbdul_Hannan_021 has not updated employment details yet.EducationUniversity of KarachiLinksAbdul_Hannan_021 has not updated links details yet. SkillsAbdul_Hannan_021 has not updated skills details yet.