Jobs are created on the spot when hiring managers meet potential employees who can successfully perform the job…on the spot, in front of them.
What probably happened in 90% of these cases is that HR’s diversity screening software automatically deleted resumes without an adequate number of keywords, but the hiring manager had a friend at another company who introduced a great candidate at a conference - and that individual got hired right away with minimal HR involvement.
Even in my HR-free small business, most employees we hire are people we meet at industry events or through customers. Online job postings are expensive and astoundingly useless at surfacing high-character individuals.
Networking! Networking! Networking!