This is the 10592nd most frequent Russian word.
внештатных
"Freelance" or "non-staff."
Here, 'внештатных' is used to describe workers who are not formally part of the company staff, typically freelancers or contractors.
Компания привлекла внештатных сотрудников для работы над проектом.
The company enlisted freelance workers to work on the project.
In this sentence, 'внештатных' refers to correspondents who are not regular staff of a publication, implying that they may contribute material occasionally or independently.
Он прислал отчет через внештатных корреспондентов.
He sent the report through freelance correspondents.
The word 'внештатных' here denotes professionals working outside the permanent staff, emphasizing cost reduction through their flexible employment.