Automated Day Trade Software

I need an application that utilizes an api to buy and sell stocks on E-trade...Using various algorithms the application will find stocks that are fluctuating at a certain price range. Once the stocks is located and has the price has decrease to a per-determined level the application will buy a set number of the stock and sell the stock once it has reached a pre-determined amount. The application should have the capacity to run five different algorithms simultaneously. So for example algorithm A would be looking for fluctuating penny stocks (stocks selling for less than a dollar), while algorithm B would look for midsize stocks (stocks the application should be able to run on test mode in order to test the efficacy of the various algorithms, while algorithm C would search for large bracket stocks (stocks selling for $10-$20), while algorithm D would search for midsize stocks. Furthermore the application should be able to run on test mode in order to test the efficacy of the various algorithms. The application should also be able to generate various reports.