Ruslan Atabayev@ratabayevSoftware Engineer at Crystal Spring LLPKazakhstanFollow BadgesProblem SolvingJavaDays of CodeSql CertificationsCertificate: Problem Solving (Basic)VerifiedskillCertificate: Problem Solving (Intermediate)VerifiedskillWork Experienceratabayev has not updated employment details yet.Educationratabayev has not updated education details yet.