The interview process started with a screening test where I was given two relatively simple problems to solve online.

Next, I progressed to an interview on their CodePair platform with one of the founders. During this interview, I was given a more difficult, but still quite doable, problem, followed by some informal discussion.

Finally, I was tasked with building a plugin for a text editor or IDE of my choice that would integrate the HackerRank API.

I spent a significant amount of time coding this last project and was looking forward to receiving feedback. However, I never heard back from them after that point, which was a few months ago.

Even if they had determined my programming skills were lacking, I would have expected some form of communication after the time I invested in the process. It seems to me that these individuals may not possess a great deal of empathy or consideration for others.

I ended up accepting another job shortly after this experience, so it was not a major setback. However, I definitely lost a lot of respect for HackerRank, which is disappointing because I believe they offer an excellent product.

In the CodePair interview, I was given a dynamic programming question that was a little tricky. They didn't care about complexity, though, and the problem was not too difficult to solve with a Big O of n^2.