The process consisted of 7 rounds.

1. The first round was a HackerRank test where you were given 25 MCQs and 3 coding questions to be solved within an hour.
2. The second interview was with a developer, involving some coding in Java (and testing), followed by some Android questions.
3. In the third round, I was given an existing codebase where they wanted me to fix some bugs and refactor the architecture.
4. The fourth interview was with a manager, covering Android-specific questions along with some coding questions based on concurrency and threading.

Then, I was called for 3 F2F onsite interviews in Bangkok, Thailand.

All the interviews were with managers and mixed whiteboard coding, system design, and theory questions.

The interview process was very good, and all the interviewers were very helpful.

Finally, after I was back home, they scheduled another Skype call where we discussed the offer.

SOLID principles

FizzBuzz Problem

How many ways to climb stairs if you can go 1 or 2 steps at a time?

Design a TODO checklist app and then iterate over it while adding functionalities.