5 Interview stages + "Technical assessment" where they have you a homework assignment. Had me do the assignment + 4/5 interviews. Asked for any tips to improve on the software assignment, interview panel did not have comments. I guess they simultaneously did not find any remarks about my code to improve on and found me unqualified for the job, because they conveniently decided to discontinue at the last stage which was a "final check with the CEO". After rejecting, they additionally did not bother to respond to my follow email asking for any tips to improve.

First stage was screening with a recruiter, who was very nice. Second stage was with hiring manager. They focused mainly on my prior experience. Both those interviews went pretty well, but within a week I received a generic rejection email with 0 feedback. That part leaves much to be desired about the interview process; however I liked the people I talked to, so my overall experience was neutral.