In Chevalier's suit, he claims an HR worker at Google met with him in September to raise concerns over his internal posts; six weeks later, Chevalier was sacked.
Chevalier, who is transgender and disabled, asserts that the axe came as a result of his response (via internal posts and memes) to racist and sexist encounters within the company - specifically the James Damore memo. According to the suit, Google objected to Chevalier's use of the phrase "white boys" in his blogpost because it "could be perceived as a generalization about race and gender".
However, as months passed and friction continued between himself and his superiors, Chevalier also believed that others, including a human resources official, were dismissive of his remarks and critiques, which ultimately lead to his dismissal.
The document also mentions that Google's HR division informed Chevalier before he was sacked that his supervisors were "critical of [his] political participation and dismissive of his attempts to change Google's culture".
The lawsuit highlights one particular instance in May 2016, when one employee asked if fewer Latino and Black workers were employed at Google, whether this mean they were "not as good".
Interestingly, Chevalier's posts had been quoted extensive in Damore's lawsuit against Google.
The site reliability engineer, Tim Chevalier, claimed in the suit that the Mountain View tech giant's workplace culture was discriminatory toward minorities.
During the summer of 2017, the group brought the diversity debate into the daylight when former Google engineer James Damore made public an important document.
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For those unfamiliar with the matter, James Damore wrote an infamous internal memo previous year condemning diversity and arguing that men are biologically more suitable to work in the tech industry.
"Throughout his life, Chevalier has engaged in political activism, advocating for civil rights for transgender people, women, disabled people, and racial and sexual minorities", said the lawsuit.
"Human Resources explicitly told Chevalier that Google was ending his employment because of his political statements in opposition to the discrimination, harassment, and white supremacy he saw being expressed on Google's internal messaging systems", the suit claims. The lawsuit argues that Chevalier's termination served as punishment for speaking out.
"An important part of our culture is lively debate".
Meanwhile, last week, the U.S. National Labor Relations Board clarified that the search giant did not break any rules by firing Damore.
"But like any workplace, that doesn't mean anything goes", she wrote.
"It is a cruel irony that Google attempted to justify firing me by claiming that my social networking posts showed bias against my harassers", Chevalier said via a prepared statement.
Scigliano adds, "This is a very standard expectation that most employers have of their employees". But when an employee does not, it is something we must take seriously.
Scigliano said Google does not base its decisions on employees' political views.