John Grzechowiak@johngrzechowiak1United StatesFollow BadgesProblem Solving CertificationsCertificate: Problem Solving (Basic)VerifiedskillCertificate: Problem Solving (Intermediate)VerifiedskillWork Experiencejohngrzechowiak1 has not updated employment details yet.Educationjohngrzechowiak1 has not updated education details yet.