I don't think it's explicit discrimination. From what I've heard they're very "culture fit" biased in their hiring. "Culture fit" is a notorious discrimination

I don't think it's explicit discrimination. From what I've heard they're very "culture fit" biased in their hiring. "Culture fit" is a notorious discrimination problem in startup-land, but it often just comes from wanting to hire people who share similar interests and socio-economic factors rather than race -- but it can have the same effect. For example, if somebody started a company that hired people overwhelmingly on their music preference, and that preference was Blue Grass, the employee pool would probably not well represent the racial makeup at large.