Entire Purchasing Team Managers interview one person at a time. Basic questions about current or previous work experience. What are your strengths and weaknesses is one of the questions. They use a Company to verify your work experience and you have to provide them with previous W-2

I applied through Linkedin during the height of Covid and was contacted by their regional HR recruiter. We set up an initial call with HR, she then scheduled a video call with the Director of Purchasing. Shortly thereafter, about a week, he called me with an offer right before Thanksgiving. It's a very straight forward interview process. Always mention you are a team player and willing to learn.