Yes, you can edit a job after you have created it.
Here's an interactive tutorial
** Best experienced in Full Screen (click the icon in the top right corner before you begin) **
8 STEPS
1. The first step is to open VPM Solutions
2. Click Company icon
3. Click Jobs
4. Click Job you would like to edit
5. Click the 3 little buttons
6. Click Edit Job
7. Once you have updated the section you wanted to update, Scroll down and click Update Job
8. That's it. You're done.