James Damore, the engineer who wrote the memo, confirmed his dismissal saying that he had been fired for “perpetuating gender stereotypes”.
Damore said he is exploring all possible legal remedies.
Google refused to comment on the case as it said it could not talk about individual employee cases.
“Distribution of preferences and abilities of men and women differ in part due to biological causes and that these differences may explain why we don’t see equal representation of women in tech and leadership,” James wrote in an internal company memo last week.
“Portions of the memo violate our Code of Conduct and cross the line by advancing harmful gender stereotypes in our workplace,” Google Chief Executive Sundar Pichai said.
The memo stoked a heated debate over treatment of women in the male-dominated Silicon Valley that has boiled for months following sexual harassment scandals at Uber Technologies Inc and several venture capital firms.
Google’s vice president of diversity, Danielle Brown, sent a memo in response to the furor, saying the engineer’s essay “advanced incorrect assumptions about gender.”