Inside the secretive world of Wall Street quant recruiting Welcome to the secretive world of Wall Street quant recruiting. Samantha Lee/Insider The market for quant and data-science specialists on Wall Street has perhaps never been hotter. But the trading firms that employ them are highly secretive, as are the recruiters they work with. Insider spoke with more than two dozen quant recruiters about their competitive, stealthy field. "You're OK that I've recorded this call, right?" So said one veteran recruiter who works with proprietary-trading firms before apologizing for his paranoia at the end of a 30 minute conversation. Other headhunters wanted to ensure up front that Insider wasn't secretly recording