Sergey Bolshakov@Mas5iveBackend Python DeveloperRussian FederationFollow BadgesProblem SolvingPythonSql CertificationsCertificate: Problem Solving (Basic)VerifiedskillCertificate: Python (Basic)VerifiedskillCertificate: SQL (Basic)VerifiedskillCertificate: SQL (Intermediate)VerifiedskillWork ExperienceMas5ive has not updated employment details yet.EducationMas5ive has not updated education details yet.