Custom shortcode to output Post Author (First and Last Name) on Custom Post Types (Job Listings, Resumes, etc).

functions.php

<?php
// ^ only ONE of these should be at the top of child theme's functions.php file

add_shortcode( 'smyles_post_author_name', 'smyles_custom_output_post_author_name' );

function smyles_custom_output_post_author_name( $args = array(), $content = '' ){

	$post_author = get_post_field( 'post_author', get_the_ID() );
	if( empty( $post_author ) ) return '';

	$author_fname = get_the_author_meta( 'first_name', $post_author );
	$author_lname = get_the_author_meta( 'last_name', $post_author );

	return "{$author_fname} {$author_lname}";
}