One person had 3-4 positions out of college, all between 8 and 14 months. Turns out they would join a large company, do nothing, and wait until they got let go. Not sure why they tried this at our smaller org, where the behavior was much more obvious.
Another flag for me is when an earlier-stage candidate claims deep expertise in multiple not-closely-related technologies. We hired one person who had deep ML, databases, and cloud services expertise - we have people like that on staff, so no problem, right? Turns out they struggled to do any of those (despite great performance on the take-home and really good, almost textbook-y answers in the interviews - this was before FinalRound and similar, so I assume they just prepped really well and had help from a friend). Now, I try to tease out the narrative of how they developed expertise in each area (e.g. "I started as a business analyst making dashboards, but then I got really interested in how databases worked and ended up building my company's first data warehouse"), which tends to be pretty illuminating in its own right. This sounds a little obvious, but a surprising number of candidates will explain their work history without ever mapping it to the skills they developed at each role unless prompted.
There were a few with really good resumes who got caught out during the interview process. Testing explicitly for humility in the interview helped a lot with this.
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Sometimes!
One person had 3-4 positions out of college, all between 8 and 14 months. Turns out they would join a large company, do nothing, and wait until they got let go. Not sure why they tried this at our smaller org, where the behavior was much more obvious.
Another flag for me is when an earlier-stage candidate claims deep expertise in multiple not-closely-related technologies. We hired one person who had deep ML, databases, and cloud services expertise - we have people like that on staff, so no problem, right? Turns out they struggled to do any of those (despite great performance on the take-home and really good, almost textbook-y answers in the interviews - this was before FinalRound and similar, so I assume they just prepped really well and had help from a friend). Now, I try to tease out the narrative of how they developed expertise in each area (e.g. "I started as a business analyst making dashboards, but then I got really interested in how databases worked and ended up building my company's first data warehouse"), which tends to be pretty illuminating in its own right. This sounds a little obvious, but a surprising number of candidates will explain their work history without ever mapping it to the skills they developed at each role unless prompted.
There were a few with really good resumes who got caught out during the interview process. Testing explicitly for humility in the interview helped a lot with this.