Hi there
I have created a few Instagram bots before. There are some things to keep in mind though... it cannot be a web based solution since these days you have to apply to use the Instagram API. However I can create a Windows desktop application to automate everything for you.
Before accepting my bid, I need to know what exactly you want the bot to do (auto-follow, auto-like, etc.) since that will affect my bid amount and time.
Also is this going to be for your own personal use, or do you intend to sell it? If only you are going to use it then I can keep the price down by giving you a very basic interface.