Hello sir,
The website is built as simply as it can. I would change meta description first. Then i will suggest to add some text, explanation on home page, as well as adding new pages for example, meet the employer, then page with some good advices to people who search jobs and apply over the website.
E-mail marketing is something important and it should be invented something which will invite people to register or at least leave the e-mail so they could be contacted with new job post.
Build some ideas why should companies come and post jobs.
A lot of work and a lot of ideas to implement in the website.
I would be happy to work with you and grow with your website.
Look forward to your reply,
Best regards,
Ivica Cvetkovic