This role requires a rudimentary understanding of coding basics. What programming languages would you say you're most familiar with?

While this question gives your interviewer insight into the diversity of your programming language experience, they most importantly want to know that you are adaptable and can learn on the fly if needed. Do as much research into Plaid as you can before your interview so that you can speak about the specific languages they work with. Before your interview, you might even spend some time perusing the Open API spec and client libraries that Plaid offers. You'll find client libraries in Java, Ruby, Python, Node, and Go.