How to remove the /job/ part of the permalink?

Hello,

I am using the following code snippet:

function job_listing_post_type_link( $permalink, $post ) {
    // Abort if post is not a job
    if ( $post->post_type !== 'job_listing' )
        return $permalink;

    // Abort early if the placeholder rewrite tag isn't in the generated URL
    if ( false === strpos( $permalink, '%' ) )
        return $permalink;

    // Get the custom taxonomy terms in use by this post
    $terms = wp_get_post_terms( $post->ID, 'job_listing_category', array( 'orderby' => 'parent', 'order' => 'ASC' ) );

    if ( empty( $terms ) ) {
        // If no terms are assigned to this post, use a string instead (can't leave the placeholder there)
        $job_listing_category = _x( 'uncat', 'slug' );
    } else {
        // Replace the placeholder rewrite tag with the first term's slug
        $first_term = array_shift( $terms );
        $job_listing_category = $first_term->slug;
    }
    
    $find = array(
        '%category%'
    );

    $replace = array(
        $job_listing_category
    );

    $replace = array_map( 'sanitize_title', $replace );

    $permalink = str_replace( $find, $replace, $permalink );

    return $permalink;
}
add_filter( 'post_type_link', 'job_listing_post_type_link', 10, 2 );

function change_job_listing_slug( $args ) {
  $args['rewrite']['slug'] = 'job/%category%';
  return $args; 
}

But I’d like only the /%category% rewrite slug, and not the /job/ included. How is that possible, because when I remove /job/, the job listings return in a 404 error?

Thanks!