Portfolio Manager @ From June 2015 to Present (7 months) Greater New York City AreaPartner @ Statistical arbitrage: alpha generation; portfolio management; strategy research, development and trading From 2013 to February 2015 (2 years) Chief Technology Officer @ Statistical arbitrage: alpha generation; portfolio management; strategy research, development and trading From 2011 to 2013 (2 years) Portfolio Manager @ Statistical arbitrage: alpha generation; portfolio management; strategy research, development and trading From 2009 to 2011 (2 years) PhD Student, Machine Learning Department @ Advisor: William W. Cohen Thesis: Exploiting Domain and Task Regularities for Robust Named Entity Recognition From 2004 to 2009 (5 years) Summer Associate, High Frequency Proprietary Trading, QSA @ From 2008 to 2008 (less than a year) Research Intern, Web Search and Mining Group @ From 2007 to 2007 (less than a year) Research Intern, Data Analytics & Math Department @ From 2006 to 2006 (less than a year) Software Engineer, Local Search @ From 2004 to 2004 (less than a year) Research & Development Analyst @ From 2003 to 2004 (1 year) Research Assistant, Intrusion Detection Systems Group @ From 2001 to 2003 (2 years) Intern, Natural Language Group @ From 2002 to 2002 (less than a year) Intern, Database Group @ From 2001 to 2001 (less than a year) Assistant Programmer and Systems Analyst @ From 2000 to 2000 (less than a year)

Ph.D., Machine Learning / Computer Science @ Carnegie Mellon University From 2004 to 2009 M.Sc., Machine Learning @ Carnegie Mellon University From 2004 to 2007 BA, Computer Science / Artificial Intelligence @ Columbia University in the City of New York From 1999 to 2003 Andrew Arnold is skilled in: Python, Matlab, Java, Machine Learning, Trading Strategies, C++, R, Scala, SQL, Linux, Quantitative Finance, Portfolio Management, Parallel Computing, Trading Systems, Algorithms, Artificial Intelligence