In the past six months, more than 270,000 tech jobs globally have been cut, according to Layoffs.fyi, which has been tracking the fallout.
A LinkedIn spokesperson said the vendors were "external partners" who would take on new and existing work.
The remaining China app, called InCareers, will be phased out by Aug. 9, LinkedIn said.
LinkedIn will retain a presence in China to help companies operating there to hire and train employees outside the country, the company spokesperson said.
Before LinkedIn's announcement, 5,000 technology jobs had been in eliminated in May alone, according to Layoffs.fyi.