Sergey Gorikov@otAtojstvoUkraineFollowAboutCurrentЖЕКEducationUndefined BadgesProblem SolvingSql CertificationsotAtojstvo has not earned any certificates yet. Work Experiencejunior janitorЖЕК• 2010 - 2015EducationUndefinedMathematics, B.Tech• 2010 - 2015Undefined