Tower Research founder Mark Gorton is HFT modern god as he is hiring like a mad man
Go through these career postings including the tech ones which specifically identifies what they use (that is fascinating a no one else does this I have seen)
This founder sounds like a genius who also started LimeWire and Lime Brokers which is the go to brokerage for HFT shops.
Lots of media attention on him like this http://www.huffingtonpost.com/2012/04/18/mark-gorton-high-frequency-trading_n_1429935.htmlFACEBOOK ACCOUNT and TWITTER. Don't worry as I don't post stupid cat videos or what I eat!