Sergey Karzenkov@AzirelFollow BadgesProblem Solving CertificationsCertificate: Problem Solving (Basic)VerifiedskillCertificate: Problem Solving (Intermediate)VerifiedskillWork ExperienceAzirel has not updated employment details yet.EducationAzirel has not updated education details yet.LinksAzirel has not updated links details yet. SkillsAzirel has not updated skills details yet.