Hello Sir,
I'm a web developer (front and back end).
I work with most CMS and also develop from scratch.
Things Needed To Accomplish Your Task.
1) You will need to get the job posting stored in the database and be able to retrieve them and display to the clients to order, of which I work with php and mysql and will achieve that goal for you.
2) Paypal payment integration for accepting payments
3) Job categories in the database
4) Real and professionally designed UI for easy interaction with your clients.
I will accomplish your design coding from scratch so I can give you a professional and responsive website view with awesome functionalities such as integrating payment processor , professional admin panel to manage your website function and lots more.
It would be nice working with you.
Awaiting your reply Sir.
Thank you.