DjangoCMS Career is a plugin to easily showcase career and educational paths. The recommended use for this plugin is on a Portfolio- or a personal CV-Website.
DjangoCMS Career is a CMS- Plugin, which means, you can only use it in the frontend editing mode. In an available placeholder, just choose a Career Plugin Container and use the 'Plus'-Sign to add Positions to it.
After you've added a Career Plugin Container, you can add Positions.