Dennis Kostin@Dennis_KostinSoftware EngineerUnited StatesFollow BadgesProblem SolvingCPPJavaPythonSqlC language CertificationsCertificate: Problem Solving (Basic)VerifiedskillCertificate: Java (Basic)VerifiedskillCertificate: Python (Basic)VerifiedskillCertificate: JavaScript (Basic)VerifiedskillCertificate: SQL (Basic)VerifiedskillCertificate: Rest API (Intermediate)VerifiedskillCertificate: C# (Basic)VerifiedskillWork ExperienceDennis_Kostin has not updated employment details yet.EducationDennis_Kostin has not updated education details yet.