For a job site, Employer is utmost important element. You can show Employers on your site by using JC: Employers page element / shortcode. Following are the instructions how to show employers on a page. Add a new page and focus on red highlighted / circled options ;
Once you have added JC: Employer Page element, you can edit page element and following popup will appear. Select your options and save the options. Employers will be shown on front-end on selected page.