Sergey Zmushko@szmushkoSoftware DeveloperFollow BadgesProblem SolvingJavaDays of CodeSqlRuby Certificationsszmushko has not earned any certificates yet. Work Experienceszmushko has not updated employment details yet.Educationgymnasium #4 Norilsk, RussiaLinksLinkedinhttps://www.linkedin.com/pub/sergey-zmushko/4a/538/115 Skillsszmushko has not updated skills details yet.