To promote a job, you can either:
Moving a job to the top of a list
In the Jobs module of your Back Office, you can, as an administrator, put a job back on top of the list to make it more visible to users. Click on "Details" to the right of the job.
In the "Accepted" tab of your Jobs module, click on "Details".
On the right of the job, you will find buttons for sharing the job via: