Jeff Bezos tweets a picture of himself eating a McDonald's burger in a throwback to his first job

• Jeff Bezos tweeted a picture of himself eating a McDonald's burger on Sunday.
• The Amazon founder's first job was at the fast-food chain at the age of 16.

He might be worth $154 billion, but it seems Jeff Bezos still enjoys some simple pleasures in life.

On Sunday the Amazon founder tweeted a picture of himself eating a burger from McDonald's, the fast-food chain that gave him his first job.

The world's second-richest man after Elon Musk said in the tweet: "My first job. And still the same great burger. Happy Sunday!"

Bezos started flipping burgers in 1980 in a McDonald's restaurant at the age of 16.

"I was a grill man and never worked the cash registers. The most challenging thing was keeping everything going at the right pace during a rush," he told Cody Teets for her book "Golden Opportunity: Remarkable Careers That Began at McDonald's."

Bezos added: "The manager at my McDonald's was excellent. He had a lot of teenagers working for him, and he kept us focused even while we had fun."

Bezos reportedly studied the fast-food chain's workflow technology and brainstormed improvements while working in the kitchen, Wired has reported.

Despite his continued love of McDonald's burgers, there are some things that set the Amazon founder apart from most of the chain's customers.

Earlier this year he came under fire for seeking to temporarily dismantle a historic bridge in Rotterdam so his new 417-foot megayacht could leave the shipyard where it was being constructed after being completed.

The bridge, known as De Hef, is nearly 100 years old, and while it is no longer used has become a much-admired monument in the Dutch city.

The yacht, known as Y721 and estimated to cost about $500 million, quietly left the Dutch shipyard before being finished without the bridge being dismantled.