Also departing this month is Brian McClendon, the vice president of maps and business platform. He plans to return to his native Kansas and explore a career in politics, he said in a statement provided by the company. "This fall's election and the current fiscal crisis in Kansas is driving me to more fully participate in our democracy - and I want to do that in the place I call home," he said.
They join a larger exodus of executives since Uber's troubles began in January. Others to depart the company in recent months, according to media reports, include Ed Baker, the vice president for product and growth, Raffi Krikorian, a senior engineering director, and Gary Marcus, whose company Uber acquired in December.
Uber's senior vice president of engineering, Amit Singhal, left the company in February after he did not disclose a sexual harassment accusation was made against him at Google, his previous employer.
The departures come as Uber tries to contain the fallout from a series of controversies, including several involving Kalanick.
The company was the subject of a consumer boycott after the company continued to operate during a taxicab protest at New York's John F. Kennedy Airport following President Trump's first travel ban. Kalanick stepped down as an economic adviser to Trump as a result.
Then, a former employee published allegations of sexual harassment and discrimination at the company, including accusations that the human resources department did not properly handle complaints from female employees. The company hired former Attorney General Eric Holder to lead a review of those accusations and the company's discrimination policies.
Last month, Google's self-driving arm, Waymo, filed a lawsuit against Uber, alleging that its technology was modeled off of stolen intellectual property. Waymo has accused three former employees of taking trade secrets to Uber, and asked a judge to bar Uber from using the technology until the matter is settled.
Kalanick was also caught on video in an argument with one of the company's drivers, who confronted the CEO about changes to the service he thought harmed drivers. After the video surfaced, Kalanick publicly apologized and said he would seek "leadership help."
Finally, a bombshell report in the New York Times outlines Uber's use of "Greyball" software to evade regulators in cities where it was not allowed to operate. The company said it would review how it uses the software - which allows the company to display the app differently to individual users - and prohibited "its use to target action by local regulators going forward," the company said.