Fullstack developer required

Hello, we are after a full-stack developer that can build a marketplace on ROBLOX. You must be able to use the ROBLOX API's to build this and we will need to integrate payment methods and a captcha solver for this project. Prior experience with ROBLOX API is not required, but it would be beneficial. If not please have a look at the API's and you will need to familiarize your self with them as we will be working with it a lot. Candidates that have experience with integrating payment systems will also be a bonus. Purchasing robux There will be two methods of transferring robux Method 1 will be transferring robux through creating a private server on roblox and purchasing the private server to transfer robux. This method takes 4-7 days to transfer robux. The private server has to be listed for the right price, and we must run checks before they pay. They will not be able to checkout if it's not listed for right price. After successful checkout, we will purchase their private server and robuxes will be delivered. Method 2 will be transferring robux instantly. This will be done by transferring through limited collectible items. There are two scenarios for this method. To transfer robux through this method, the user needs premium and a collectible item. 1) Scenario 1. User has a limited item and premium already. Good. We will login into the users account through either user:pass or through cookie and list their collectible item for x price.. So if user wants to purchase 5000 robux, we will login to the users account and list the item for 7142 robux (roblox takes a 30% fee!). We will then purchase that limited item from that user for 7142 robux so the user gets 5,000 robux in their account 2) Scenario 2. User does not have a limited item and premium. We will purchase premium on their account using giftcards and purchase a collectible limited item. The method to transfer robux is the same as above. All of this has to be automated. We will need to implement a captcha solver, for redeeming giftcards and if we are logging in through user:pass. Features; Purchase history -Accessible through entering a username -Robuxes can be resent if it was failed before, they will need to go through the verification steps again Referrals -Users can access this page by entering their username -They will have their own promocode, and each individual user that uses the promo code on their first purchase, the refferrer will get 5% of the refferals robuxes credited to their account. And the buyer will get a + x robux bonus. Minimum withdrawls on refferal payouts and minimum purchase required for this to occur -Refferals can cash out their robux once they hit the minimum withdrawl limit and will be sent by Method (1) - purchasing by private server Admin panel -Changing rate of robux (price) -Adding robux/removing robux -Stats, daily sales -Managing/creating promo codes API - [login to view URL] [login to view URL]!/v2 Payment methods we would like to integrate [login to view URL] [login to view URL] Please note this is a very brief description. I can send you figma link it is ready to go with it