John is the EVP at Ticketmaster responsible for overseeing all aspects of data science, engineering and strategy. With more than 25 years experience in software development, data computation and data science, John has held engineering and leadership positions at Overture, Yahoo, Fox Interactive Media. He joined Ticketmaster from the Rubicon Project where he was the CTO building innovative solutions in the area of computational advertising. He joined Ticketmaster to bring the power and legacy of advertising technology into the live event industry. Since joining Ticketmaster he has built cohesive and independent teams building software in areas such as abuse prevention, distributed commerce, personalization and marketing. John has been a founding member and key contributor to many open source projects. He has been a researcher and author in a wide range of disciplines including machine learning, distributed computing and quantitative genetics for over 20 years.