Sergej S.@sergej_sFollow BadgesProblem SolvingCPP CertificationsCertificate: Problem Solving (Basic)VerifiedskillWork Experiencesergej_s has not updated employment details yet.Educationsergej_s has not updated education details yet.Linkssergej_s has not updated links details yet. Skillssergej_s has not updated skills details yet.