We are always looking for great talent on our team, so please reach out if you are interested. Experienced data scientist and manager, skills include: Experimental design and analysis Causal inference from quasi/natural experiments Statistical modeling R, SQL, Hive, Hadoop, data visualization

Manager, Experimentation @ Manage a team of data scientists that support experimentation and analytics in the areas of customer acquisition (signup flow), messaging, and payments. Developing innovative methodologies for A/B testing and quasi-experimentation in these product areas. From April 2015 to Present (10 months) Senior Data Scientist @ From January 2014 to Present (2 years 1 month) Senior Quantitative Social Scientist and Capability Lead, Cultural Data Modeling @ Sophisticated quantitative analysis of social science data, including survey, census, and text data. Responsibilities include data analysis, managing a virtual team, proactive business development, leading proposals, writing white papers and reports, and conducting customer-facing briefings and demonstrations. • Principal investigator and/or project manager on several large Department of Defense (DoD) contracts • Managing interdisciplinary project teams of software engineers, user interface designers, and scientists • Customers include the Defense Advanced Research Projects Agency (DARPA), Office of Naval Research (ONR), and the Army Research Laboratory (ARL) From October 2009 to January 2014 (4 years 4 months) San Francisco Bay AreaResearch Assistant @ Project developed a weighting methodology to correct for non-response and selection bias from quota controlled sampling schemes in over 400 surveys. Responsibilities included managing a team of research assistants and preparing a successful National Science Foundation grant application (SES-1155143). From 2005 to 2009 (4 years)

Ph.D., Political Science @ Harvard University From 2003 to 2009 A.B., Politics, Summa cum laude @ Princeton University From 1999 to 2003 Ian Yohai is skilled in: Survey Design, Statistics, R, Project Management, Proposal Writing, Research Design, Data Analysis