The process took about a month.

I applied online and received a coding challenge invite. The test duration was 3 hours and included a few behavioral questions and 3 coding questions. The coding questions were based on string manipulation (one similar to FizzBuzz, one similar to finding a common substring, and one similar to finding the lowest common ancestor in a tree). The test usually takes the entire duration allotted.

The second round was a live digital interview with a technical interviewer. I was asked about my previous experience and projects worked on, after which I was presented with a coding question. This question was based on recursion and dynamic programming.

In a live digital interview, I was asked to code a solution to determine all possible telephone numbers from a mobile keypad.

This was under a specific constraint: every digit entered could only be reached by a knight's move on the keypad.