SAN JOSE, Calif. — Google has had more trouble diversifying its workforce than its computer scientists have had writing programs that respond to search requests in the blink of an eye or designing cars that can navigate traffic without a human behind the wheel.
That seemed to be the conclusion when the Silicon Valley giant this week issued a gender and ethnic breakdown of its workforce that showed that of its 26,600 US employees, 61 percent are white, 30 percent Asian, 3 percent Hispanic and 2 percent black. Thirty percent of its employees are women.
‘‘Google is miles from where we want to be,’’ said Google personnel chief Laszlo Bock.
Why is one of the most innovative, dynamic sectors of the US economy looking like the corporate world of the past, at least when it comes to black people, Hispanic people, and women? The biggest factor is a shortage of such students majoring in computer science or other technical fields in college, according to Bock.
‘‘There is an absolute pipeline problem,’’ he said in an interview Wednesday with ‘‘PBS Newshour.’’
One year, Google says, there were just two black people in the United States with newly minted doctorates in computer science on the job market. The company hired one of them, and Microsoft hired the other, according to Bock.
But the educational choices of some members of minority groups don’t entirely account for the lack of diversity at technology companies.
For instance, Google sells $50 billion in advertising annually, a task that required more than 2,900 salespeople in the United States as of last August. Just 79 of them, or 3 percent, were black. A total of 127, or 4 percent, were Hispanic. More than 2,000, or about 70 percent, were white.
Google attributes this to ‘‘unconscious biases’’ that have historically favored white people. ‘‘We like people who are like us, who watch the same shows, who like the same food, who have the same backgrounds,’’ Bock told PBS.
To address this issue, Google has put more than 20,000 employees through 90-minute training sessions during the past year to help them become more aware of their biases.
Google is also trying to do more recruiting at colleges with large minority enrollments. During the past year, Google has dispatched a specialist to work with historically black Howard University to draw up a curriculum that will give its graduates a better chance of competing for technology jobs against the likes of MIT. The program will be extended to five other colleges this fall.
Google is just one of many high-tech companies pledging to diversify their workforces this spring under pressure from the Rev. Jesse Jackson. But the same promises were made in the Silicon Valley 15 years ago, again under pressure from the civil rights leader. That effort included a conference, a website, commitments from top firms, and a call to educate and employ 200,000 young people.
‘‘I’m disappointed. For the most part they have not improved,’’ said Jackson on Thursday. ‘‘Look at their board of directors and their c-suites. There’s a culture of exclusion.’’
Google’s efforts come amid a renewed bout of advocacy from Jackson and the Rainbow PUSH Coalition, which have been leading delegations to shareholder meetings this spring at such companies as Google, Facebook, eBay, and Hewlett-Packard, decrying ‘‘old patterns that exclude people of color and women from opportunity and advancement.’’
Jackson said that he hopes others will follow Google’s lead, and that this time he is redoubling his efforts here.
In 1999, when Jackson launched his first Silicon Valley initiative, 89 percent of Silicon Valley chairmen and chief executives were white, while the white-collar workforce was about 60 percent white and 31 percent Asian. Those figures have barely budged.
Intel, Hewlett-Packard, Cisco, and Advanced Micro Devices have published similar labor data breakdowns.
Sharon Vosmek, chief executive of nonprofit Astia, which connects women-led startups with financial backers, said: ‘‘This is not a Google issue; this is a societal issue.’’