About us History Core Values Management Board of Directors Careers John Melo President & CEO John Melo has been our Chief Executive Officer since 2007. Raffi Asadorian Chief Financial Officer Raffi Asadorian is our Chief Financial Officer. Joel Cherry President, R&D Joel Cherry leads our research and development, including various ongoing collaborations. Paulo Diniz Chairman, Amyris Brasil Paulo Diniz oversees our Brazilian activities. Nicholas Khadder General Counsel & Corporate Secretary Nick Khadder leads our legal activities. Charles Kraft Vice President, Global Manufacturing & Process Development Chuck Kraft leads our global manufacturing and process development operations. Jack Newman Chief Scientific Officer Jack Newman is one of our co-founders and our lead scientist. Karen Rohde Chief Human Resources Officer Karen Rohde leads our human resource activities.