Jack Dorsey is an American entrepreneur and software programmer, best known as the co-founder of the global social media platform :contentReference[oaicite:0]{index=0} and the founder of the mobile payment company :contentReference[oaicite:1]{index=1}.

Jack Dorsey, whose full name is Jack Patrick Dorsey, was born on November 19, 1976, in the state of Missouri, United States, to Marcia Smith and Tim Dorsey. He grew up in St. Louis, Missouri, until the age of thirteen. He attended Bishop Dubourg High School for his secondary education.

After high school, Jack Dorsey enrolled at the Missouri University of Science and Technology but left before completing his studies. He later continued his education at New York University, which he also left without graduating. After beginning his professional career, he relocated to California.

From an early age, Jack Dorsey showed a strong interest in computer programming and communication systems. In 2008, he was selected by Technology Review as one of the “35 Innovators Under 35,” recognizing his impact on the technology world.

Jack Dorsey is the creator of Twitter, one of the world’s most influential social networking platforms. He is also the founder and CEO of Square, a mobile payment system designed to allow small businesses—such as hairdressers and florists—to accept credit card payments via smartphones without requiring traditional bank accounts or checkbooks.

During Twitter’s early years, major technology companies expressed interest in acquiring the platform. Google reportedly offered $2.5 billion to purchase Twitter, an offer that Jack Dorsey publicly rejected, stating that such a valuation was unacceptable for a company with Twitter’s potential.

The idea for Twitter emerged when Jack Dorsey, along with his friends Evan Williams and Biz Stone, explored the simplest way for users to share status updates with friends. They determined that SMS messaging was the most effective model and decided to bring short text messaging into a web-based environment—an idea that ultimately became Twitter.

When Twitter was officially launched on March 21, 2006, Jack Dorsey posted the platform’s first tweet: “just setting up my twttr.” At the time, Twitter was still known internally as “twttr.”

In 2006, Twitter employed only a handful of people, and by 2008 the company had just eight employees. By 2015, Twitter’s workforce had grown to more than 600 employees. The platform became a central hub for global communication, news, and public discourse, with over 200 million daily visitors shaping worldwide agendas.

Jack Dorsey continued his entrepreneurial journey by founding Square, expanding his influence beyond social media into financial technology. Square introduced innovative solutions that enabled small businesses to process credit card payments using iPhone and Android devices.

Jack Dorsey resides in San Francisco, California, United States. According to Forbes, his net worth was estimated at $11.8 billion as of November 29, 2021.

On November 29, 2021, Jack Dorsey unexpectedly resigned as CEO of Twitter and handed leadership of the company to Parag Agrawal, marking the end of a defining era in the platform’s history.

Source: Biyografiler.com