I didn't clear the work sample but man, I had fun doing it. I learned a ton. I most appreciated that they gave me legitimate feedback as to why they decided not to move ahead with me. It highlighted a gap in my current knowledge/experience that I was glad to discover.
That being said, it did take a very long time to get a final answer back from them, but overall I'm a happpy reject. Could even see myself applying again some day.
Edit: in my experience, the code challenge made a lot of sense.
We're happy to take the credits back if they make you uncomfortable. (I kid. I kid.)
Out of curiosity, what did they send you, and what do you find weird/off about the process? It's definitely not the norm [0] but isn't it better than spending a bunch of time working through back-and-forths in "normal" hiring pipelines?
I put the experience on GlassDoors, but in general... it's fine, but took way too long.
On plus side. The coding challenge was amazing and I learned a lot doing it. I passed the first code challenge, then I didn't pass the followup exercise which was on slack. It was very clear that the exercises are directly related what I would be doing.
On the negative side, the whole process took far too long and there were around 1 month delays in all the messaging. That made me think I don't want to apply there again, because I don't have infinite time in my life. However, if you can afford to wait, it is fine.
I asked about leveling since the fly.io hiring page claimed to be hiring levels 1-3 and I didn't see how I could be screened out of consideration for level 1. They did not reply.
I will say though, they were very polite.