It was an unmitigated disaster. Constantly had to double check his work and redirect him from doing things bad ways (like using mutable objects with changing hash codes as dictionary keys kind of bad).
Eventually I quit the job (for other reasons). On the last day he cornered me in the elevator and offered me $100/hr to do his work for him under the table so that he could claim it was his.
> Did you ever verify that they actually had the experience they claimed?
Employer would only verify employment dates and eligibility for re-hire.
> Did you follow up with their references?
Yeah, but when you ask someone for references they're not likely to give you people who wouldn't speak well of them.
> Were they able to walk you through projects they worked, or discuss solutions implemented?
Yeah. I can walk you through projects that I was involved in as a junior as if I had been the lead because I paid attention during meetings.