Hi all - I am looking for a C# or C++ platform that will allow me to backtest and optimize algos - and also looking for a broker that gives me the best inventory of Hard to Borrow stocks. I trade mostly on NASDAQ and NYSE and like to both buy and short stocks in the $1 to $10 range. I am new to algo trading so any suggestions on the appropriate platform and broker for my purposes would be most appreciated. Many thanks.