Cathy O’Neil earned a Ph.D. in math from Harvard, was a postdoc at the MIT math department, and a professor at Barnard College where she published a number of research papers in arithmetic algebraic geometry.
She then switched over to the private sector, working as a quant for the hedge fund D.E. Shaw in the middle of the credit crisis, and then for RiskMetrics, a risk software company that assesses risk for the holdings of hedge funds and banks.
She left finance in 2011 and started working as a data scientist in the New York start-up scene, building models that predicted people’s purchases and clicks.
She wrote Doing Data Science in 2013 and launched the Lede Program in Data Journalism at Columbia in 2014.
She is a weekly guest on the Slate Money podcast and wrote the book Weapons of Math Destruction: how big data increases inequality and threatens democracy.
She recently founded ORCAA, an algorithmic auditing company.