Matthew McCullough is an energetic 15 year veteran of enterprise software development, open source education, and co-founder of Ambient Ideas, LLC, a Denver consultancy. Matthew currently is a trainer for GitHub.com, author of the Git Master Class series for O'Reilly, speaker at over 200 events, 30 national and international conferences, author of three of the top 10 DZone RefCards, and President of the Denver Open Source Users Group. His current topics of research center around project automation: build tools (Maven, Leiningen, Gradle), distributed version control (Git), Continuous Integration (Jenkins, Hudson) and Quality Metrics (Sonar). Matthew resides in Denver, Colorado with his beautiful wife and two young daughters, who are active in nearly every outdoor activity Colorado has to offer.