Wolt Software Engineer, Backend interview questions

They sent a message to me on LinkedIn, we had one interview with HR and after that with Team Leads. Then they sent me a coding assignment. The code assignment was quite algorithmic with a lot of corner cases that only some of them were mentioned. I did the task and sent it in one week. They rejected the task with a feedback of we couldn't even run it because it was lacking the X file and readme and stuffs but I sent them an screenshot explaining this is not true and they are included there. Also the technical reviewer was lacking Springboot understanding unfortunately and it seemed the one is having some Android background (guessing based on the comments) and they were not even valid =)) So i got really pissed off that I wasted my time for such team that doesn't care enough I spent couple of nights after work and my whole weekend but still they were nagging that this doesn't have the specs we want, because they were expecting a production quality code which were going to take a lot longer time. The other surprising problem was that the code reviewer didn't have a clear understanding from the PDF they sent me for the assignment, as there was some comments in their rejection feedbacks that was clearly indicating the reviewer didn't know his complain was written in the assignment. very disappointing.

I have just done the first interview which was an introduction interview. I haven't done the second one yet, but I think is technical and its time is about 1.5 hours.