The trading domain knowledge can be found from various online resources. I used to make a 200+ slide powerpoint on the technical analysis aspect of trading but it is probably irrelevant now as markets had changed much since the introduction of algorithmic and high-frequency trading.
I was writing that script for Amibroker platform (https://www.amibroker.com) but I believe the market leader is probably something like MetaTrader (https://www.metatrader4.com). Also, for developers or software engineers familiar with Python, Quantopian might be something you'll enjoy using (https://www.quantopian.com).
