Career
After graduating from college, Dorsey moved to New York City to pursue a career in finance. However, he soon became disillusioned with the financial industry and decided to pursue a career in technology instead.
In 2000, Dorsey began to work as a technical assistant for the investment firm, Omidyar Network, which was founded by Pierre Omidyar, the founder of eBay. Dorsey's job involved working with the company's early payment systems, which involved processing online transactions.
In 2006, Dorsey co-founded Twitter with Evan Williams, Biz Stone, and Noah Glass. The service was initially called "twttr" and was designed to allow users to send short messages, or "tweets," to their followers. Dorsey was responsible for designing the service's architecture and writing much of the initial code.