One or the other, I think they usually try to put you on a PIP before firing though. It can feel like an up or out kind of culture, but the timelines are fairly

One or the other, I think they usually try to put you on a PIP before firing though. It can feel like an up or out kind of culture, but the timelines are fairly reasonable IMO - e.g. they give you 5 years to progress from an entry-level SWE to mid/senior-level SWE (L3 -> L5).