Interesting approach do you have experience in HFT from outside Betfair?<p>My backtester, paper trader and live framework are one and the same, all in python, any reason for scala?<p>Also feel free to join us in using Betfairlightweight and the slack group:<p><a href="https://github.com/liampauling/betfair" rel="nofollow">https://github.com/liampauling/betfair</a>