Javier Andres Rivera Casallas@andres_rivera32Software engineer at OveractiveColombiaFollow BadgesProblem SolvingJava CertificationsCertificate: Problem Solving (Basic)VerifiedskillCertificate: Java (Basic)VerifiedskillWork Experienceandres_rivera32 has not updated employment details yet.Educationandres_rivera32 has not updated education details yet.