There were two rounds. The first round was an online HackerRank, which I completed pretty early on in the process. I didn't hear back for a round 2 until ~4 months later, which was 30 minutes behavioral and 30 minutes technical.

I cold applied in August as soon as their applications opened. I got an OA a week or so later on HackerRank. It was basic multiple choice questions with two coding implementation questions. Then I got an email asking about my location preferences. A month or so later I got a call from a recruiter asking to schedule an interview. It was a video interview (1 hour), with two 30-minute back to back behavioral and technical sessions with a different interview for each. It was pretty straight forward, they just asked me some basic project experience questions, string manipulation questions, and other stuff I learned in my SWE class. Got a call 1-2 days later with an extended offer.