Financial Technology, but I guess Future Tradings would also be something I would want to learn? I'm at the beginner stage where I don't know what I need to kno

Financial Technology, but I guess Future Tradings would also be something I would want to learn? I'm at the beginner stage where I don't know what I need to know! But my long term goal is to combine my CS background with Finance and do something interesting in it, if that makes any sense.