Publishing a job creates an external URL that allows you to quickly send jobs to your Job Listing page, social media sites, job boards etc. for greater visibility.
Publish the job: when creating a job, toggle "Publish To Job Boards" on . Once you hit Save this will immediately create an URL that you can distribute.
To access the link, click on the external icon next to a job title
If you need to make changes to the job, refresh by simply updating the Published date