Developer Needed for Code Writing

I play a game called Roblox.com. On this site you can buy/sell/trade items called limiteds. Roblox releases these limiteds in limited amounts. After the quantity of the limited runs out you can sell and trade the limited to other users. The currency in Roblox is tix and robux. I just like the concept of making money and this site gives that. Over the years people have made bots to auto buy these limiteds when users put them up for a small price. I have one these but it is not match against other users who have made their own. I don't know much about what I need to include for someone to understand what I'm asking for here. But from what I understand what the bot is, is that its a Java script bot that somehow uses code to auto buy any limited set on the catalog for a certain price. If you have any other questions email me