Marina Walker Guevara is director of strategic initiatives at the International Consortium of Investigative Journalists (ICIJ). She managed the two largest collaborations of reporters in journalism history: the Panama Papers and the Paradise Papers, which involved hundreds of journalists using technology to unravel stories of public interest from terabytes of leaked financial data. Walker Guevara has been instrumental in developing the science behind ICIJ's model of large-scale media collaboration, persuading reporters who used to compete with one another instead to work together, share resources and amplify their reach and impact. The Panama Papers team won the 2017 Pulitzer Prize for Explanatory Reporting.
Walker Guevara was a John S. Knight fellow at Stanford University (2018-2019) where she studied the use of artificial intelligence in big data investigations.