Many companies I've worked with in the past used to look at certificates they eventually migrated to the philosophy of no code sample no application because the

Many companies I've worked with in the past used to look at certificates they eventually migrated to the philosophy of no code sample no application because they had so many 'master's degree' computer science students who couldn't explain what polymorphism is. Before you buy a pair of shoes u try it out right? You wouldn't blindly just buy it.