I applied through a recruiter. The recruiter was polite and helpful. She explained the process and sent some preparation material for reference.

After 2.5 weeks, one phone round was arranged. The interviewer started by asking for a brief introduction, present and past job experience, challenges faced in work, etc. Then, they asked me to solve a coding problem pasted on Collabedit. I used Python to solve it. The question was not difficult, though I made a small mistake in the code.

Finally, the interviewer asked if I had any questions for him. The total time of the phone call was around 50 minutes.

Given a nested list of integers, return the sum of all integers in the list weighted by their depth.

For example, given the list {{1,1},2,{1,1}}, the function should return 10 (four 1's at depth 2, one 2 at depth 1).