A just-in-time person is what Venkatesh Rao refers to a a person selling a naked call. In his essay, The Premium Mediocre Life of Maya Millennial he talks about people who have no skills yet, but fake it til they make it as a strategy for survival.
By avoiding learning any skill, it is possible to learn skills only after getting the job, a form of reducing the sunken cost of not being hired. In his essay, it is analogous to selling a naked call: selling something you donβt even own. I find it more similar to just-in-time compilation where you learn to do the job on the job.
Other Related Meanderings: premium-mediocre