Jones, who was the chief marketing officer at Target Corp before joining Uber, apparently chose to step down after CEO Travis Kalanick recently announced that the company was looking for a chief operating officer to help him "write the next chapter" in Uber's journey.
Mr Jones joined Uber from Target Corp, where he was chief marketing officer and is credited with modernising the retailer's brand.
This was preceded by Kalanick being filmed arguing with an Uber driver. The company is also facing a lawsuit from Alphabet's Inc after being accused for stealing designs of self-driving vehicle technology.
Included in the string of high-profile departures at Uber was Amit Singhal, who joined Uber as senior vice president of engineering and reported to Kalanick. Uber needs to grow: it loses money and has, of late, bled customers too as the #deleteuber movement first sprang up over its support for the Trump administration and then gathered pace as sexism claims emerged. That differed somewhat from Kalanick's version of the story, which was that Jones made a decision to leave after he announced that the company was looking for a COO.
"In announcing Jones" hiring in August, Kalanick said the two had met at a technology-industry conference in Vancouver, British Columbia.
Though Uber has always been known for its aggressiveness in taking on regulators, competitors and critics, the company has recently found itself entangled in a series of ugly controversies, ranging from sexual harassment allegations to Kalanick's abrasive behavior.
Uber taxi in NY.
Uber has reportedly been stunned by his unexpected departure, with most of the management left disappointed at what they saw as a lack of professional courtesy in informing them of his plans.
Among other Uber officials who have left in recent weeks are Gary Marcus, who led Uber AI Labs, hacker Charlie Miller of Uber's self-driving-car team, and Ed Baker, Uber's vice president of product and growth.
The company, valued at $68 billion, has had a rocky few months. Otherwise, the company will face even bigger problems after Uber President quitted.