Answer:
Contingent employees
Explanation:
In the scenario which is been presented in the question the HR experts would come under contingent employees.
Contingent employees are the independent or self dependent employees that are known as freelancer. Even if someone works in a company for a limited or a specific time period and also as a non- permanent employee, then also it comes under the category of contingent employees.
The employees who come under the contingent employees also posses with skills, expertise, and experience as well.