Doug Bierer is the owner and CTO of unlikelysource, a website development and consulting company that over the last 10 years has developed 60+ websites for customers around the world. In addition, Doug has been a contract trainer for RogueWave Software/Zend Technologies since 2009. He wrote his first program in 1971 on a PDP-8, and has developed commercial applications in languages including Assembler, C, C++, Java, JavaScript, Perl, and PHP. He developed a video series on MongoDB for InfiniteSkills (now part of O'Reilly Media) in 2014. Before diving into MongoDB, Doug developed applications and performed administration for MySQL databases. He has continued to develop applications that access MongDB to this day