He felt in love with Unix and its Philosophy in the early 1990’s and became a Linux user before the kernel reached version 1.0. Since 1997 he has been living out of Free and Open Source related services and he is a true believer Agile and Linux are two tales of a same community. Cesar has also worked with educational institutions in Brasil helping create success business models using Free and Open Source Technology enterprises, generating employment and income for hundreds of people. He also wrote books on agile methodologies, computer programming, technology in education and if you look carefully into the Kindle store you will find also a novel and a sci-fi story. Cesar translated several books into Portuguese (such as The Mythical Man-Month and The Design of Design, both by Fred Brooks, Jr.) and reviewed a good amount of articles and books both in English and Portuguese (such as The $1 Prototype, by Greg Nudelman).