When the job is created you have to find your applicants, and get them to apply for the job. There are several ways to do that. You go to the tab for Postings and get three options.
The Get the “Apply now” link to use the link directly to the apply page.
Talent Careers is your own portal where all your jobs will show and where they can apply.
The last part is the LinkedIn integrations, where you can post directly to LinkedIn.
To use LinkedIn you have to have a LinkedIn recruiter license and set up the LinkedIn recruiter system connect integration. You click the gear on the right top and then the Admin center.
There you choose the LinkedIn integration and follow the steps.