hard coded contact form 7 on job detail page

Hi,

I want to replace Simple Job Board Job Application Form with Contact Form 7.

I edited job-application.php file and removed Job Board Job Application Form code and added code form my Contact Form 7: [contact-form-7 id=”823″ title=”Jobseekers_form”]

But the form is not displaying in the front end, I must be missing something, can you please advise? The code looks like the below:

<?php
/**
 * Display the job application form.
 *
 * Override this template by copying it to yourtheme/simple_job_board/single-jobpost/job-application.php
 *
 * @author 	PressTigers
 * @package     Simple_Job_Board
 * @subpackage  Simple_Job_Board/Templates
 * @version     1.0.0
 * @since       2.1.0
 * @since       2.2.2   Added more @hooks in application form.
 * @since       2.3.0   Added "sjb_job_application_template" filter & "sjb_job_application_form_fields" filter.
 */
ob_start();
global $post;

/**
 * Fires on job detail page before displaying job application section.
 *                  
 * @since   2.1.0                   
 */
do_action('sjb_job_application_before');
?>

[contact-form-7 id="823" title="Jobseekers_form"]

<?php
/**
 * Fires on job detail page after displaying job application section.
 *                  
 * @since   2.1.0                   
 */
do_action('sjb_job_application_after');

$html_job_application = ob_get_clean();

/**
 * Modify the Job Applicatin Form Template. 
 *                                       
 * @since   2.3.0
 * 
 * @param   html    $html_job_application   Job Application Form HTML.                   
 */
echo apply_filters('sjb_job_application_template', $html_job_application);