1. Recruiter call, followed by a 15-minute coding challenge: an easy sorting problem with a comparator.

2. Phone screen: Talk about experience and interests, followed by coding their own custom problem. This involved applying logic similar to finding the longest substring with unique characters. Follow-up questions covered how to scale the problem to run on different nodes, with multiple threads, etc.

3. Onsite: Four rounds. Round 1: Coding (their own custom problem) which involved hashmaps, heaps, and sorting. Round 2: System Design - designing a system similar to finding nearest restaurants given a location. Round 3: Behavioral. Challenges faced, lessons learned, interesting projects, and cultural fit. Round 4: This was a very random round. The interviewer didn't show up, and a replacement was found after a long wait. He wasn't well-prepared on what to focus on. He threw in a bunch of basic hashmap-related coding questions, scaling the algorithm, and resume-based questions.

Some of my interviewers were not on time, and they didn't seem well-prepared.