If you have your permalink structure set up as /blogs/%postname% then the post type will assume you want this for new post types as well. You’ll need to define rewrites for the jobs post type by using the rewrite rule.
'rewrite' => array('slug' => 'jobs', 'with_front' => false)
Make sure to flush your permalinks afterwards by going to your WordPress dashboard, navigating to Settings -> Permalinks, and clicking “Save Changes”.