Recruiter screen, Technical Phone screen, followed by an Onsite consisting of 6 technical interviews. The whole process was so exhaustive.

I hope it works for them. If you cannot assess a candidate after 4 interviews, then it's time for them to introspect about their process.

As a candidate, it completely left me drained. And guess what? You will get a very generic rejection email after you follow up with HR.

Have the decency to inform from your end when a candidate has gone through such an intensive process.

My advice: avoid even considering this company.

1. Construct a valid IP address from a string containing just numbers.

2. Compare versions.

3. Kth largest number in a binary search tree.

4. Employee - manager relations using DFS.

5. Design tiny URL.

6. Design YouTube.

7. Design a feature to be added to WhatsApp.