Ask HN: What's the engineering culture like at Twitch?

I'm looking at engineering positions at Twitch, however I'm aware they were acquired by Amazon, who from my estimations has a particularly grueling work culture.

A question to any engineers working at Twitch (or any other Amazon acquired company), have you noticed any changes, negative (or positive) interference from Amazon? Or more broadly what would you say of the engineering culture compared to other companies?