Gleitzman graduated from the Massachusetts Institute of Technology where he worked with Hal Abelson to enhance introductory programming experiences using mobile devices.

Gleitzman was a visiting researcher at Google Research in Mountain View, California where he built App Inventor for Android, a graphical programming language for creating Android phone applications that is now at the core of the MIT Center for Mobile Learning.

He is the founder of NextStep Tech, an organization teaching software engineering, creative thinking, and entrepreneurship to junior and high school students.

In his spare time he enjoys creating electronic music, discussing programming concepts, and playing WikiMaze, his remake of Encarta 95's classic trivia game.

He also posts useful bits of knowledge on gleitzman.com.