Stephanie Singer, consultant at Verified Voting, is a recognized expert on risk-limiting audits. She has assembled, analyzed and explained data for private business, public agencies, campaigns and election oversight.  She has led work on projects such as designing a risk-limiting audit pilot for the Orange County Registrar of Voters and, at Free & Fair, developing open source software to support risk-limiting audits for the state of Colorado. From 2012-2016 she served on the Philadelphia County Board of Elections -- including one year as chair -- improving communication, modernizing processes, rooting out corruption and protecting voters’ rights. She won the post by defeating a 36-year incumbent in a citywide election. Singer co-chaired the statewide Election Reform Committee of the County Commissioners Association of Pennsylvania and is an active member of the national Election Verification Network. Singer studied math and computer science at Yale and Stanford, completed a Ph.D. at New York University and earned tenure from Haverford College. She has written two books on mathematical physics.