You have found a hedge fund to hire you already? what is it you are asking? Or you are experienced and looking for a freelance trading job? Why dont you have money to leverage up to a few mils then
They can't be reached through forums and message boards. You will have to contact them directly with a presentation with a bio to try and get an interview. The best way to get that interview is to network with other traders and managers of those funds by attending the events they go to. sle would know more about this process than me, but large hedge funds are looking for those with unique data sets or a systemic process to take advantage of market conditions in a way that others don't.