1 face to face interview, then if you're accepted, you're called to the office where you'll have three back to back interviews for 30 minutes each, very relaxed, not really any technical questions, they care a lot about how you respond, and if you're personable, not necessarily if you have the quantitative skills, as they'll try and shape those up once you're through the door...

Took a few months of talking with a variety of people in the organization. One Zoom and 4 phone calls. All casual conversations. Everyone was super nice and well-spoken. Just talked about 15-30 minutes about my experience and asked questions