Use Flexible Content to add shortcode. Just click the Page Attributes then select Flexible Content from the Template dropdown.

Click Add Content Block button then select Form.

Paste this shortcode to display Hiring Managers & Job Seekers block. 
[ get_sidebar name=columns ]

Note: Remove the space before and after [] to make it work. Update the page.

Video tutorial:

https://drive.google.com/file/d/1WEyXzZxFTorOOKuJLOUZo1nl_1BGifWE/view?usp=sharing