Olga Anisimova@rig_851Android DeveloperUnited StatesFollow BadgesProblem SolvingJavaDays of Code CertificationsCertificate: Problem Solving (Basic)VerifiedskillCertificate: Problem Solving (Intermediate)VerifiedskillCertificate: Problem Solving (Advanced)VerifiedskillWork Experiencerig_851 has not updated employment details yet.Educationrig_851 has not updated education details yet.