The position was advertised as Senior Firmware Engineer, but during the interview, I was told that there are "no juniors or seniors here at Bolt."

Then, I was told to redo my home assignment. Now, I understand that perhaps it was suboptimal and I took a wrong approach to solving it. However, I considered this a lack of respect for my time. If you don't like my submission, then don't continue the process. If you do, then you can ask follow-up questions in the next interview and decide.

I got angry and submitted some very dirty code, which obviously didn't land me the job.

The home task was to write an algorithm and parse some data in C.