I applied through a recruiter. I interviewed at Mirelo AI
Interview
Similarly to others, I had a negative interviewing experience with them. A recruiter reached out to me, everything was good via email, I interviewed, the interviews seemed to go well with lots of positive feedback and nodding, suggesting they'd see me in the next round. Then out of nowhere they emailed me I didn't pass and they wouldn't offer me any concrete feedback for why. Also the prep for their interviews was very time consuming, they would sent you a lot of papers to read to prepare.
The process was fast, after 5 interviews they just ghosted me although they seemed to be happy with all interviews, some weird vibes from one of the founders, the rest of the interviewees were friendly
I applied through other source. I interviewed at Mirelo AI (Berlin) in Mar 2026
Interview
I did not even apply there myself; I was not really interested in the job, but was pushed by a recruiter to have an interview for a "research scientist" position. I thought it would be a discovery call where they might tell me a bit about their mission and ask me some questions about myself. Instead, it was a rushed technical interview with a lot of engineering questions and nothing about science at all. A day later, I got an automated no-reply rejection email saying there were too many applicants (despite me not even having applied there, but being pushed by a recruiter to accept the interview). I think, regardless of how that reply would have been, I would definitely not have continued the process. If I want such a toxic culture, I will apply myself directly at Amazon or Meta.
Interview questions [1]
Question 1
How attention, diffusion models, and parallel neural network training work - extremely focused on specific details, like e.g., the exact formula of how AdaInNormalization works