Rename fields on Front-end (WP Job Manager Plugin)

functions.php

<?php

//* Rename fields on Job Submission form (WP Job Manager Plugin)
add_filter( 'submit_job_form_fields', 'wpspeak_submit_job_form_fields' );

// You can see the fields which can be changed here: https://github.com/mikejolley/WP-Job-Manager/blob/v1.2.0/includes/forms/class-wp-job-manager-form-submit-job.php#L101
function wpspeak_submit_job_form_fields( $fields ) {

    	// Here we target one of the job fields (job_title) and change it's label
	$fields['job']['job_type']['label'] = "Level";
	$fields['company']['company_name']['label'] = "Name";
	$fields['company']['company_logo']['label'] = "Photo/Image";

    	// And return the modified fields
    	return $fields;

}