Company seemed very nice as overall brand and culture, as well as their mission. I went through all stages, first was interview with Business Automation manager instead of HR which was quite new for me, but went quite well and he was a very nice guy. He asked me non stop behavioural questions straight all 40 minutes.
After that I got a home task assignment and one week to complete. I actually made a lot of effort to complete it and also enjoyed it, i would not say it was a hard task but very open-ended for your creativity.
After that I got technical interview with two engineering managers for 1,5 hours (which is incredibly long). Where I was asked system design questions and in general all possible imaginable questions (architecture, performance, security and again some behavioural questions). I would like to mention that these engineering managers were two absolutely amazing and friendly guys, I enjoyed talking with them.
Then I reached to final interview with Product Lead and VP Engineering which looks like I didnt pass, because after that I got rejected. This interview was not very welcome, prob they already knew they will reject me and didnt have any enthusiasm (not listening to my answers, asking basic questions). Anyway VP Engineering seemed like a very nice person to me though. The reason i was rejected is "no experience with no-code/low-code tools". Which is totally nonsense, because you saw it from my CV from day 1 why then you even proceed until final interview with me?
I would still recommend everyone applying to FINN because company spirit seemed really great to me and I was really disappointed when I got rejected. But be aware that process is very long, for me it took 1.5 month and in the end rejection, such a time waste unfortunately.