Finish off Django site (Paypal API only thing left)

The website is in django 1.7 (python 2). It is nearly complete and just needs a little time on the paypal API, which the current developers have never used before, and need to get it done quickly, so are outsourcing it. NONE of the work will involve you needing to write things on the front end (except some sort of payments page). All you need to do is get the payment complete, get an IPN response, and then modify a field in the database (probably need to create a new field) to suit (eg. for the ads at top of searches, put a date it stays at the top till). This is a product sales site vaguely akin to ebay. You will need to implement these specific parts of the backend: Seller pays some amount in Paypal to list a product for regular users Full time sellers instead use subscription with Paypal to allow listing at any time for free Seller uses Paypal to put a product on the front page Paypal to put ad at top of searches Provide some sort of script / instructions to work with the paypal account (in terms of how to set up the account if we were to repeat this).