I applied online and they first scheduled a behavioral interview with me. It was a 30-minute interview and it went well. At the end of the interview, I was told that I had made it to the next round, which was the technical interview.

The technical interview was scheduled for an hour. You were given about 20 minutes to answer each question. If you went over the time limit, they would ask you for your pseudocode; if not, they would ask you to optimize the code.

The coding was done on Codepad. The interviewer was extremely nice and helped me through my code if I got stuck. At the end of the interview, they gave me a chance to ask my own questions.

There were two rounds of technical interviews, each with the same structure.

Given a collection of distinct numbers, return all possible permutations.

For example, [1,2,3] have the following permutations: [ [1,2,3], [1,3,2], [2,1,3], [2,3,1], [3,1,2], [3,2,1] ]

Given an array of integers, return indices of the two numbers such that they add up to a specific target.

You may assume that each input would have exactly one solution, and you may not use the same element twice.

Example: Given nums = [2, 7, 11, 15], target = 9,

Because nums[0] + nums[1] = 2 + 7 = 9, return [0, 1].