very nice people. Recruiter was extremely polite and helpful. At first had a small conversation with the typical questions "what makes you a good candidate for this job", etc. then had 3 math tests which were easy. Also a few questions about my background, experience, academic. In general the interview was a very pleasant procedure not stressful at all.

Three phases. First was a group interview going over responsibilities and logistics including expected wardrobe, then brief math quiz to demonstrate expectations for on the job mental math. Then they reached out to schedule a second interview time. I know there's three in all, but I didn't go through with the process