Maxwell Dayvson Da Silva, a self-taught programmer, is the director of technology at The New York Times.
Born in Recife, Brazil, he is a video specialist and is most interested in bringing technology to a global audience. His work has ranged from developing and delivering highly scalable products to innovating and implementing large-scale video solutions. Prior to joining the Times, he worked for Globo, Brazil's leading media network, and Terra, a global digital media company.
Additionally, he has spoken at conferences such as Campus Party, FISL, SET Broadcast and Cable, Streaming Media East, and Streaming Media West. Maxwell has also devoted time to speaking at several Brazilian universities, including UFGRS, IFRS, UDESC, and FEEVALE-RS.
He is a contributor to and creator of some open source projects. You can find them at https://github.com/dayvson. Outside of his professional work, Maxwell regularly combines his passion for art and science to create games and interactive art installations. His son, Arthur, inspires him to seek opportunities to bring science into the lives of young people, both in New York and abroad.
Although Redis Essentials is Maxwell's first book, he has done technical reviewing for two others, Extending Bootstrap and Learning JavaScript Data Structures and Algorithms. You can contact him on LinkedIn at http://www.linkedin.com/in/dayvson.

Hugo Lopes Tavares is a software developer from Brazil who currently works as a platform engineer at Yipit, a technology company focused on data aggregation and analysis. Prior to his work in the United States, Hugo worked on live streaming video development for Globo.com, the Internet branch of Grupo Globo, which is the largest media conglomerate in Latin America.
Having been involved in open source software, he has made a significant impact in this field. He was a main contributor to pip (the Python package installer), wrote improvements to CPython and the Python standard library, coauthored Splinter (a web-testing tool), and contributed to many well-known projects. Some of his contributions can be found at https://github.com/hltbra.
Additionally, Hugo worked at NSI (Information Systems Research Group), carrying out research and development on agile methods and software quality for the Brazilian government. Within his research, he created some testing tools, the most famous of which are Should-DSL and PyCukes, which are mentioned in Python Testing Cookbook, Packt Publishing (Should-DSL has its own section in it).
When Hugo is not doing anything related to technology, he is involved in strength training as an amateur powerlifter.
You can contact him on LinkedIn at https://www.linkedin.com/in/hltbra.