I took a screening coding exercise through HackerRank's jobs page (https://www.hackerrank.com/jobs/search).

The hiring manager was in contact with me shortly after, saying I had done well in the exercise and that they wanted to follow up.

I let him know that I needed to move quickly because I was at the latter stages with another company or two. He was very diligent in moving me quickly through their interview process, once even scheduling an interview on a Saturday instead of the coming Monday to expedite the process.

I was also brought onsite, and everyone was friendly.

Onsite, I had more culture fit questions and algorithm/data structure questions.

The questions were a mix of typical algo/data structure questions and culture fit questions.

The algos/data structures questions were, I would say, medium-easy to medium-hard difficulty.