You can reorder the categories on a job. Go to Jobs, click the 3-dot icon on the top right of the page, and select Job Layout. Click and drag a library type to reorder. The order set on this page updates all jobs on your site.
You can also reorder requirements within each category. Click Jobs in the main menu. Click a job name in the table. If it's a published job, click Edit to switch to the draft copy. Click and drag the grips beside a competency, responsibility, knowledge statement, or other requirement to reorder.