The process was long and then it just abruptly ended. I had interviews over the course of two months:

• Coding challenge
• System design
• Full stack interview

Each of these seemed to go really well, and I received great feedback. However, the recruiter didn't give me any specific feedback and stated they were not continuing the process. He asked if I wanted feedback, and I responded that I did, but I never received any. Oh well.

The coding challenge was in Java. I had to sort a data structure and write a comparator.

For the full-stack interview, you just explain how a request-response flow works from beginning to end and how authentication works, etc.

For systems design, you design REST APIs (no code) through white-boarding.