Mark is a co-founder of the App Inventor project, led its initial development at Google as tech lead and manager, and is currently an MIT Research Affiliate at the MIT Computer Science and Artificial Intelligence Laboratory (CSAIL). He has supported the growth of App Inventor from a small research project to a global platform used by millions of learners and professional app developers alike, and he continues to be dedicated to its ongoing and expanding mission. Mark has been a technology leader at companies large (e.g., Google, Microsoft, Oracle) and small (e.g., Thunkable, Piper). Mark is also a co-founder and an officer of the App Inventor Foundation. His long-standing interests are to open up computer programming to everyone, and to contribute to the uses of technology in education.