The JWC points are specific to individual jobs and any additional points are added to the basic profile score to obtain the overall grade for a role. The JWC points are specific to individual jobs. PDF | On Jun 13, 2016, William Nikolakis and others published JWC-Supplement | Find, read and cite all the research you need on. "JWC is a journal with a difference. The advertised salary includes a supplement (JWC) to the base grade of the post.