Take a page out of the playbook of the top 10 richest people in the world. : What were the first steps that some of the world's wealthiest took on their way to becoming billionaires? Read on to learn more about how business leaders such as Jeff Bezos, Bill Gates and Warren Buffett got their start. After a summer gig working as a cook at McDonald’s, Bezos’s first job out of college was at a telecommunications startup called Fitel, where he was the 11th employee.