LinWei Ren@jeffren0115Software Developer at Cognizant TechnologyUnited StatesFollow BadgesProblem SolvingSql CertificationsCertificate: Problem Solving (Basic)VerifiedskillCertificate: SQL (Basic)VerifiedskillWork Experiencejeffren0115 has not updated employment details yet.Educationjeffren0115 has not updated education details yet.