I was applying to a senior position, but anyway I got an initial sample coding task to do instead of a technical interview as first. There was an obsolete codding task (having nothing mutual with Android) with some algorithmic knowledge needed, divided into several subtasks. However, the task seemed interesting to me from the algorithmic side, so I decided to do it. There was no possibility to do in Kotlin (my main coding language), so I decided to write it in Java. It took me about 8 hours combining it with the main work, but in the end, I got an automatically generated message saying that I did not pass. It is understandable, but when I asked for some review of my work, they said, that my solution failed on some automatic tests testing text input format. So, they didn't evaluate any professional abilities (as architectural or algorithmic) just because of a check of text format failed. Very unprofessional. Don't recommend it.