Check the background, are you a guy with the stem background, and are you a friendly guy and you can deal with kids. Are you good at explain concepts to others, are you a good presenter. And are you always smile, are you willing to learn new things.

Simple phone interview and then 1 more with operations lead and director afterward. Most questions related to experience with technology and software skills. Depending on the role the question where the focus on that, such as math, computer science, art, design, or game development.