Nelson Glauber holds master degree in software engineering and works with software development since 2002. In 2006 started developing games and applications with Java ME, and since 2009 works with Android (platform and application levels) in projects for national and multinational customers such as: Google, Motorola, Samsung, Positivo, Sony and HP. He is also professor of mobile development in graduation, post-graduation and extension courses in the Northeast of Brazil. In 2014, Google nominated him the first Developer Expert of Android in Latin America. Nelson Glauber has also spoken at various regional and national events and has written about mobile development in his personal blog and for specialized magazines. He is the author of the book "Mastering Android" (https://novatec.com.br/livros/dominando-android-kotlin/).