Change the candidate title

functions.php

// Add your own function to filter the fields 
add_filter( 'submit_resume_form_fields', 'custom_submit_resume_form_fields_dm' ); 
// This is your function which takes the fields, modifies them, and returns them 
function custom_submit_resume_form_fields_dm( $fields ) { 
// Here we target one of the job fields (candidate name) and change it's label 
$fields['resume_fields']['candidate_title']['label'] = "My pro title";
// And return the modified fields 
return $fields; 
}