An indicator of hard to fill job categories may be the lack of public job postings for senior or specialized positions, particularly seen in the IT industry, where these roles are often filled internally or through referrals.
An indicator of hard to fill job categories on an analytics page can be inferred from the percentage of jobs that are not publicly advertised or are hidden within a company. Particularly in the IT industry, while entry-level positions may be openly posted online, positions that are more senior or specialized tend to be less visible to the general job-seeking public.
This practice suggests that companies may rely on internal recruitment, employee referrals, or specialized recruiters to fill these hard to fill positions. The scarcity of public job postings in a specific category on the analytics page could be a clear indicator of a hard to fill job category.