It depends if the candidate is applying or you're sourcing her. I generally don't skip based on the very last job, because even if it's 3mo there may be a reaso

It depends if the candidate is applying or you're sourcing her. I generally don't skip based on the very last job, because even if it's 3mo there may be a reason that is worth investigating in an info interview. But in general, I skip if the pattern seems to be hopping every year in the last 2-3 years. Another thing that I look at is where geographically the candidate was working. If I see no hopping for a while, then moved to Silicon Valley and started hopping every year, then I pass, or at least I yellow flag that in the pipeline. I don't have any issue with several years in just a company, actually I think it's rare and very positive.