There’s a simple and a more detailed answer to “how to post a job”.
First, the simple answer: Go to the My Positions tab of your system and find the job you want to post (you can view all of your jobs either in one list or broken out by Location/Department).
Select the job you want to post using the checkboxes. Then, click on Take Action and select “Post”.
Now, the more detailed answer: A posted job is a Template that you’ve assigned to a location and made live. Therefore, to properly post a job, you need to first have the Template saved to your Library. Then, you can assign any Template to any Location/Department in Admin > Organization.
Once that assignment is made, the job will show in your My Positions tab and you can post it via the steps above.