First stage was a chat with the hiring manager to discuss the role in a bit more detail. The next stage was an online phone screen with CodeSignal. The two major problems I had with the phone screen was that it uses proctoring so they monitor your webcam and your screen and also it gives you 4 questions in just an hour. It wouldn't be an issue if they were vaguely interesting questions but they were such tedious string manipulation type questions that I just didn't have the willpower to continue through with them all. The last questions looked more interesting but in the example they only told you the counts of the subarrays they were looking for but without telling you what those subarrays looked like, making it virtually impossible to see how the count of subarrays should be derived.