I applied online and the next day I received an email to schedule my phone interview.

The phone interview lasted about 45 minutes and consisted of two problems. One was a simple problem with a string, and the second was to check if a binary tree is a BST.

After that, they scheduled me for an on-site interview. The interview consisted of two parts.

On the first day, we had a 1.5-hour technical interview after a tour of the office. Those who qualified returned the next day for a behavioral interview, which was easy and surprisingly pleasant.

After that, I had a systems design interview (not actual coding, just designing a system) with a senior engineer, which was a bit unusual for an internship position.

Create a system that receives hotel bookings of the form [5, 10] (meaning that someone plans to come on day 5 and leave on day 10) and checks if there is availability.