Scott Hassan is an American computer programmer and entrepreneur who was the main programmer of the original Google Search engine, then known as BackRub. He was research assistant at Stanford University at the time, after working at Washington University's Medical Libraries Group. Hassan left before Google was officially founded as a company. He bought 160,000 Google shares for $800 when the company was founded in 1998, which would be valued at more than $200 million when Google went public in 2004, and more than $13 billion as of 2021.