A new survey of nearly 5,300 tech workers by Portland Women in Technology points to one possible explanation for the enduring disparities: Most white people in the industry said their companies take diversity seriously and would recommend someone from an underrepresented group work at their company. But among people from other racial and ethnic groups, and transgender people, fewer than a third agree. [...] “I feel like people like to hire people they know and they get along with,” said Dawn Mott, 37, an African-American software developer in Portland. At a developer conference earlier this year, a panel discussion Mott attended had no women panelists. Afterwards, Mott said she asked two of the panelists why. She said they asserted here were no women leaders in development and doubted she was a developer.