test.js

(function($) {
  $(document).on('facetwp-refresh', function() {

    // if pageload and no facets are active
    if (! FWP.loaded && '' == FWP.build_query_string()) {

      // if on an archive page
      if ($('body').hasClass('tax-job_listing_category')) {

        // extract the term from the URI, and set it as the facet value
        FWP.facets['membership'] = FWP_HTTP.uri.split('/').slice(-1);
      }
    }
  });
})(jQuery);