Joe has served as the Chief Security Officer of Cloudflare since July 2018. Prior to that, Joe was employed as Chief Security Officer at both Uber (2015 - 2017) and Facebook (2008 - 2015). His first private sector experience was in senior security and legal roles at eBay and PayPal (2002 - 2008). He also held the position of Commissioner for the United States Presidential Commission on Enhancing National Cybersecurity in 2016 and spent the first eight years of his career with the US Department of Justice, including as a federal prosecutor focused on cyber crime. Joe also advises a number of companies on security practices and mentors a number of developing security leaders.