Hello. Im looking for a bot to maximize my selling/buying of bitcoins. A bot to keep my order in top of order book, but at close distance from the rest and when someone moves an order from the opposite side up then i move down (eg if i have an order of 9.5btc buy at 385 and someone makes an order to sell at 385.01 then my 9.5 btc order drops to 384.5).

Does anyone know a bot like this ?