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Before joining foursquare, Justin worked at a hedge fund as a quantitative analyst, building custom portfolios for their asset management division and doing modeling and analysis for their risk team, specializing in high-frequency, derivatives, and commodities trading. Prior to that, he worked for Bear Stearns as a vice president in their fixed income analyst group, building applications and models to help value agency pass-thru securities and building loan-level pricing applications and models. Justin holds a BS in computer science with a minor in mathematics from the University of Rochester and has studied graduate-level math and computer science at Columbia University. He enjoys finding ways to take large sets of data and making interesting things happen with it.
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