Repeated major failures would be something like regularly failing to deliver or making a critical error multiple times. A pattern of behavior that doesn't fit the culture, NOT a one off mistake. A great example of this would be the engineer who accidentally leaked House of Cards a week early. The only consequence is that a "process" was removed to make doing what he was trying to do easier. I don't think firing this individual was ever considered. He didn't have a pattern of carelessness and this just happened to be a mistake.

I'm told the only "fuck up" that will get you fired on the spot for the first occurrence is sexual harassment.

My experience is fairly consistent with others I know, there are of course a few exceptions. Though please do bear in mind I have a severe observation bias here. I interact with significantly more people that want to work at Netflix than I do those who don't.

Tolerance of failure is different for ICs and Managers, partially because Managers tend to have such an ability to really screw things up in a way that isn't technical and has an impact on a bunch of other people in the company.

The shortest IC tenure I've seen here was the result of being a brilliant jerk (which interviewers did not catch during the interview cycle (and I speak here as one of the people who interviewed this person)). The shortest Manager tenure I've seen here was noticeably shorter than this, and was the result of pissing off your engineers.

I've not seen any IC here screw up on a technical level in such a way as to get fired for a first or even second screwup -- it really takes a pattern. My shortest IC termination was six months from hiring to termination.

Certainly, it's one experience among many. Thanks for sharing your perspective.