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Twitter is being sued by a former female engineer who claims she was overlooked for promotion in favour of her male colleagues. Tina Huang's proposed class action for sex discrimination comes as male-dominated Silicon Valley has been rocked by two other high profile lawsuits. In the complaint, filed in San Francisco on Thursday, Miss Huang has accused the microblogging site of discriminating against women in the way it promotes its employees. In the papers, she claims the firm has no formal procedure for posting job vacancies or granting promotions. Twitter is being sued by a former female engineer Tina Huang for gender discrimination. Instead, she says the company relies  on a secretive 'shoulder tap' process that allows few women to achieve the top engineering positions. In the legal papers Miss Huang allegedly argues that 79 per cent of Twitter's leadership team is male, according to Mashable. Miss Hiss Huang complained to Twitter CEO Dick Costolo, pictured. Miss Hunag is one of Twitter's oldest employees after joining the firm in October 2009. She was put on leave after she raised a grievance with CEO Dick Costolo about her lack of promotion and quit in June 2014. 'Despite being one of Twitter's oldest employees, Ms. Huang's career at Twitter was irreparably derailed for making a complaint, court documents says, according to Business Insider. 'After three months without explanation as to the status of the investigation, or mention of any possible time frame for her return to work, she felt she had no choice but to leave the company for the sake of her career.' She is now seeking other employees at the firm who feel they have been passed over for promotion to join her in the lawsuit. A spokesman for Twitter said Miss Huang had resigned and was not forced out. 'Twitter is deeply committed to a diverse and supportive workplace, and we believe the facts will show Ms Huang was treated fairly,' they said. Miss Huang started her legal action as the case was being heard of Ellen Pao, a former partner at venture capital firm Kleiner Perkins Caulfield and Byers, who is suing for sexual discrimination. During the high-profile trial in San Francisco she has claimed she was passed over for promotion because she is a woman. She alleges that she was fired in 2012 after she complained. The firm deny her claims of sexual discrimination and harassment. At the weekend a judge denied a request by lawyers for Kleiner Perkins Caufield & Byers to have Pao's demand for unspecified punitive damages thrown out. Judge Harold Kahn said: 'There is sufficient evidence from which a reasonable juror could conclude that Kleiner Perkins engaged in intentional gender discrimination by failing to promote Ms. Pao and terminating her employment,' the judge said in the one-paragraph decision. Pao can seek punitive damages that could add millions of dollars to a possible verdict in her favour. She is seeking $16 million in lost wages and bonuses. Meanwhile, Facebook is also facing a lawsuit from former employee and program manager Chia Hong. According to the complaint she has filed with San Mateo Court, she was belittled by her boss for taking time off to volunteer at her children's school, forced to served drinks to male co-workers and told she should have just stayed home to take care of her child. Ellen Pao, a former partner at Kleiner Perkins Caufield & Byers, pictured left, and Chia Hong, a former Facebook employee, pictured right,  have put the spot light on gender discrimination in Silicon Valley. A Facebook spokesperson denied the allegations and told Recode that the company has made progress in matters related to gender, diversity, and equality. 'In this case we have substantive disagreements on the facts,' the spokesperson said 'and we believe the record shows the employee was treated fairly.'
Female engineer Tina Huang is suing Twitter for gender discrimination.
Claims she was overlooked for promotion in favour of male colleagues.
Says the Silicon Valley firm has no formal procedure for promotions.
And alleges there was a 'shoulder tap' process that favoured men.
Twitter says it is committed to diversity and that she was treated fairly.
Comes as Silicon Valley rocked by two other high profile lawsuits.
Skriv höjdpunkter för denna artikel: Twitter blir stämd av en före detta kvinnlig ingenjör som hävdar att hon var förbisedd för befordran till förmån för sina manliga kollegor. Tina Huangs föreslagna grupptalan för könsdiskriminering kommer då mansdominerade Silicon Valley har skakats av två andra uppmärksammade stämningar. Miss Huang anklagar i sitt klagomål i San Francisco på torsdag för att ha diskriminerat kvinnor på det sätt som de främjar sina anställda. I tidningarna hävdar hon att företaget inte har något formellt förfarande för att tillsätta lediga platser eller bevilja befordran. Twitter blir stämd av en före detta kvinnlig ingenjör Tina Huang för könsdiskriminering. Istället säger hon att företaget förlitar sig på en hemlighetsfull "skuldra kran"-process som gör att få kvinnor kan nå de främsta ingenjörspositionerna. I de juridiska tidningarna hävdar Miss Huang att 79 procent av Twitters ledarteam är manligt, enligt Mashable. Miss Hiss Huang klagade till Twitters VD Dick Costolo, på bilden. Miss Hunag är en av Twitters äldsta anställda efter att ha kommit till byrån i oktober 2009. Hon fick permission efter att hon tagit upp ett klagomål med VD:n Dick Costolo om sin brist på befordran och slutade i juni 2014. "Trots att vara en av Twitters äldsta anställda, Ms Huang karriär på Twitter var ohjälpligt urspårad för att göra ett klagomål, säger domstolsdokument, enligt Business Insider. "Efter tre månader utan förklaring om utredningens status, eller om någon möjlig tidsram för hennes återkomst till arbetet, ansåg hon att hon inte hade något annat val än att lämna företaget för sin karriärs skull." Hon söker nu andra anställda på firman som känner att de har blivit förbigångna för befordran för att ansluta sig till henne i stämningen. En talesman för Twitter sa att miss Huang hade avgått och inte tvingats ut. "Twitter är djupt engagerad i en mångsidig och stödjande arbetsplats, och vi tror att fakta kommer att visa att Huang behandlades rättvist", sade de. Miss Huang inledde sin rättsprocess då fallet hördes av Ellen Pao, en före detta partner på riskkapitalbolaget Kleiner Perkins Caulfield och Byers, som stämmer för sexuell diskriminering. Under den uppmärksammade rättegången i San Francisco har hon hävdat att hon blev förbigången för befordran eftersom hon är kvinna. Hon hävdar att hon fick sparken 2012 efter att hon klagat. Firman förnekar hennes påståenden om sexuell diskriminering och trakasserier. I helgen avslog en domare en begäran från advokater om att Kleiner Perkins Caufield & Byers skulle få Paos krav på ospecificerade straffskadestånd utslängda. Domare Harold Kahn sade: "Det finns tillräckliga bevis för att en rimlig jurymedlem skulle kunna dra slutsatsen att Kleiner Perkins ägnade sig åt avsiktlig könsdiskriminering genom att underlåta att befordra Ms Pao och säga upp hennes anställning", sade domaren i ett styckebeslutet. Pao kan söka straffskadestånd som kan lägga miljontals dollar till ett eventuellt utslag till hennes fördel. Hon söker 16 miljoner dollar i förlorade löner och bonusar. Under tiden står Facebook också inför en stämning från tidigare anställd och programchef Chia Hong. Enligt det klagomål hon har lämnat in till San Mateo Court blev hon förringad av sin chef för att ha tagit ledigt för att vara volontär på sina barns skola, tvingats servera drinkar till manliga arbetskamrater och sagt att hon bara borde ha stannat hemma för att ta hand om sitt barn. Ellen Pao, en före detta partner på Kleiner Perkins Caufield & Byers, på bilden till vänster, och Chia Hong, en tidigare Facebook-anställd, på bilden till höger, har satt punktljuset på könsdiskriminering i Silicon Valley. En talesperson på Facebook förnekade anklagelserna och berättade för Recode att företaget har gjort framsteg i frågor som rör kön, mångfald och jämlikhet. ”I det här fallet har vi väsentliga meningsskiljaktigheter om fakta”, sade talespersonen, ”och vi anser att protokollet visar att den anställde behandlades rättvist.”
Write highlights for this article: Twitter is being sued by a former female engineer who claims she was overlooked for promotion in favor of her male colleagues. Tina Huang's proposed class action for gender discrimination comes as male-dominated Silicon Valley has been shaken by two other high-profile lawsuits. In her complaint in San Francisco on Thursday, Miss Huang accuses women of discriminating in the way they promote their employees. In the newspapers, she claims that the company has no formal procedure for filling vacancies or granting promotions. Twitter is sued by a former female engineer Tina Huang for gender discrimination. Instead, she says the company relies on a secretive "shoulder crane" process that allows few women to reach the top engineering positions. In the legal papers, Miss Huang claims that 79 percent of Twitter's leadership team is male, according to Mashable. Miss Hiss Huang complained to Twitter CEO Dick Costolo, in the picture. Miss Hunag is one of Twitter's oldest employees after coming to the agency in October 2009. She received leave after she raised a complaint with CEO Dick Costolo about her lack of promotion and ended in June 2014. "Despite being one of Twitter's oldest employees, Ms. Huang's career on Twitter was irreparably derailed to make a complaint, court documents say, according to Business Insider. "After three months without an explanation of the status of the investigation, or of any possible timeframe for her return to work, she felt she had no choice but to leave the company for the sake of her career." She is now looking for other employees at the firm who feel they have been bypassed for promotion to join her in the lawsuit. A Twitter spokesman said Miss Huang had resigned and not been forced out. "Twitter is deeply involved in a versatile and supportive workplace, and we believe facts will show that Huang was treated fairly," they said. Miss Huang began her legal proceedings as the case was heard by Ellen Pao, a former partner of venture capital firm Kleiner Perkins Caulfield and Byers, who sues for sexual discrimination. During the high-profile trial in San Francisco, she has claimed she was bypassed for promotion because she is a woman. She claims she was fired in 2012 after she complained. The firm denies her claims of sexual discrimination and harassment. This weekend, a judge rejected a request from lawyers for Kleiner Perkins Caufield & Byers to have Pao's claims for unspecified penalty damages thrown out. Judge Harold Kahn said: "There is sufficient evidence that a reasonable juror could conclude that Kleiner Perkins engaged in deliberate gender discrimination by failing to promote Ms. Pao and lay off her employment," the judge said in a paragraph decision. Pao may seek punitive damages that may add millions of dollars to a possible ruling in her favor. She seeks $16 million in lost wages and bonuses. Meanwhile, Facebook also faces a lawsuit from former employee and program manager Chia Hong. According to the complaint she has filed with San Mateo Court, she was belittled by her boss for taking time off to volunteer at her children's school, being forced to serve drinks to male workmates, and saying that she should only have stayed home to take care of her child. Ellen Pao, a former partner at Kleiner Perkins Caufield & Byers, in the picture to the left, and Chia Hong, a former Facebook employee, in the picture to the right, have put the point light on gender discrimination in Silicon Valley. A spokesperson on Facebook denied the allegations and told Recode that the company has made progress on issues related to gender, diversity and equality. ‘In this case, we have substantial differences of opinion on the facts,’ said the spokesperson, ‘and we believe that the record shows that the employee was treated fairly.’
Kvinnlig ingenjör Tina Huang stämmer Twitter för könsdiskriminering. Påståenden hon förbisågs för befordran till förmån för manliga kollegor. Silicon Valleys firma har inget formellt förfarande för befordran. Och påstår att det fanns en "skuldra kran" process som gynnade män. Twitter säger att det är engagerat i mångfald och att hon behandlades rättvist. Kommer som Silicon Valley gungas av två andra hög profil stämningar.
Female engineer Tina Huang sues Twitter for gender discrimination. Claims she was overlooked for promotion in favor of male colleagues. Silicon Valley's firm has no formal procedure for promotion. And claims there was a "shoulder crane" process that favored men. Twitter says it is committed to diversity and that she was treated fairly. Coming as Silicon Valley is rocked by two other high profile lawsuits.