In recent weeks, Uber has moved quickly to shed that past. The company hired Eric H. Holder Jr., the former United States attorney general, and others to conduct an investigation of the workplace. Arianna Huffington, a board member, has repeatedly said that the company would no longer hire “brilliant jerks.”
Ms. Hornsey, a former executive at Google, has also moved into the hot seat. She joined Uber late last year from SoftBank and has essentially been given a blank check — money, head count, resources — to revamp the workplace processes and managerial styles put into place when the company was still a fledgling start-up.
Along with resources, Ms. Hornsey has embarked on a “listening tour” with employees who wish to share grievances. She is reworking the human resources structure and how Uber rates employee performance, long considered a problem area for insiders. And she spoke on behalf of the company about the diversity report, which covered full-time employees but not drivers, who work as freelancers.
The report’s numbers were stark. Only 36 percent of Uber’s work force is made up of women, while the technology jobs at the company — some 85 percent — are overwhelmingly held by men. In terms of racial composition, 50 percent of Uber’s employees in the United States are white and 31 percent are Asian, while 9 percent are black and 6 percent are Hispanic.
“We have to build more trust with our employees, and transparency will build that trust,” Ms. Hornsey said of the report.
In the past, Mr. Kalanick has resisted publishing a diversity report, current and former employees have said. In a statement on Tuesday, Mr. Kalanick said, “I know that we have been too slow in publishing our numbers — and that the best way to demonstrate our commitment to change is through transparency. And to make progress, it’s important we measure what matters.”
Compared with statistics at other technology companies, Uber’s diversity figures are not that different — and are modestly better than some.
According to Google’s most recent diversity report, for example, just 31 percent of its work force are women. Google also said 81 percent of its technical jobs were held by men, while 1 percent of its employees in the United States were black and 3 percent were Hispanic. Many of the numbers stack up roughly along the same lines at Apple and Facebook.
Many of the diversity issues at Uber are also endemic to Silicon Valley. The venture capital firm Kleiner Perkins Caufield & Byers was sued over gender discrimination in 2012 by a former partner; it won the case in 2015. The software development start-up GitHub has also dealt with allegations of sexism and harassment.
At Uber, issues of internal culture may have been compounded by its dizzying growth over the past few years. The service is available in hundreds of cities across more than 70 countries and completes hundreds of thousands of trip requests a day. In the last year alone, the company’s employee base has doubled in size to more than 12,000.
But that turbocharged expansion has come at a cost, employees have said. Growth, they said, was prioritized above anything else. That skewed the development of the organization into something that embraced the “cult of the individual,” Ms. Hornsey said.
Top performers were rewarded and promoted into management positions. Some 63 percent of managers had never previously held a leadership position, and Uber did not provide much training for new managers, some said.
“For the first several years, we had to just focus on executing our operational goals, and that was kind of the be-all, end-all,” said Nicole Cuellar, an operations and logistics manager who has worked at Uber for nearly four years. “There was never the need to think about our culture like that. And I don’t think it sunk in until we all had this really gut-wrenching experience.”
Among the things that Uber now has on the table to change are its list of 14 corporate values, which include being “super pumped” and “always be hustlin’.” Mr. Kalanick is open to revising or adding new values, Ms. Hornsey said.
She added that Uber was creating a task force to pinpoint major human resources failings, aided by Frances X. Frei, an adviser from Harvard Business School who has helped companies through organizational change. Uber also pledged to donate $3 million over the next three years to groups working on bringing women and underrepresented minorities into the tech industry.
Some current and former employees have expressed concern over whether Uber will be able to change, given the deep-seated trait of aggressive individualism that Mr. Kalanick has fostered.
But others like Tasneem Minadakis, who is active in Uber’s LadyEng organization, an internal group at the company that supports and campaigns for women, said they have been galvanized by the efforts to fix the culture. In total, Ms. Minadakis said LadyEng has more than 500 employees eager to enact change.
“They really do believe that this company can be a force for good,” Ms. Hornsey said. “If it could only stop shooting itself in the foot.”
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