Matthew David Welsh is a computer scientist and software engineer and is currently the co-founder of Fixie.ai, which he started after stints at Google, xnor.ai, and Apple.
[2] Welsh has led teams at Google and Apple Inc., and served a Professor of Computer Science at Harvard University.
In November 2010, five months after being granted tenure,[9] Welsh announced that he was leaving Harvard.
[10] Welsh taught the operating systems class at Harvard in which Mark Zuckerberg was a student.
Welsh was later portrayed by actor Brian Palermo in the movie The Social Network featuring Zuckerberg and the founding of Facebook.