Display in node custom field profile
Try with print render($node_author-&gt;field_custom);


Or you can try as well:

insert at the top of you node.tpl.php

&lt;?php 
global $user;
$node_author = user_load($user-&gt;uid);
$yourvariable = $node_author-&gt;field_custom;
?&gt;


Where you want print the field insert:

&lt;?php print $yourvariable['und'][0]['value'];?&gt;