Fresh off the release of a string of headlines about its workplace, Uber CEO Dara Khosrowshahi said at Fortune's Brainstorm Tech conference Monday that culture "can can change but it cannot change in the matter of months," adding that "culture work is never done."

Why it matters: Much of Khosrowshahi's tenure since taking over the company nearly a year ago has been about cleaning up the company's problems, which led to his predecessor's resignation in June 2017.

More from Khosrowshahi's onstage interview:

• Uber's culture: "As a company, I can say that we are now acting in a way that is true to one of the norms which is 'we do the right thing, period,'” he said, adding that the company won't be perfect. He also said he doesn't see his job as simply fixing the company — he's here to build a great company going forward.
• On COO Barney Harford's conduct: He declined to say whether Harford's job is safe, following a report last week of instances of insensitive comments, but said that "the process will be run the right way" to handle these issues and that it's too soon to know. "We take very seriously anything to do with anyone but especially our senior officers.”
• Working with taxis (again): "It’s A-to-B product," he said of Uber's plans to work with cabs in Japan. "If there is an entity or unit… [that wants] to have access to the incremental demand that we bring, we’re game for that.”
• Uber's CFO search: "We’re running a process that’s taking longer than I’d like," he said, adding that Uber is looking broadly for candidates. "And I’m being picky here.”
• Becoming profitable: "The most important thing for me is cash flow and cash generation,” he said. "I don’t want to be dependent on private, public or any market to fund our business. I look at cash before profits. But over periods of time, it’s absolutely important for the business to be profitable."
• Self-driving cars: "We’re a networks business," he said of Uber's willingness to work with other companies developing self-driving cars.