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      Entrevista para Senior Data Scientist

      23 de mai. de 2022
      Candidato(a) sigiloso(a) à entrevista
      Nenhuma oferta
      Experiência negativa
      Entrevista com nível médio de dificuldade

      Candidatura

      Candidatei-me online. O processo levou 4 semanas. Fui entrevistado pela X em fev. de 2022

      Entrevista

      Made clear from the beginning that there's no industry experience for A/B Testing, but plenty of other relatable causal work and rigorous statistical knowledge that easily applies. Got told from Recruiting & HM that there's no expectation of having industry A/B testing experience or knowledge. In the technical parts of the interview, I got asked primarily A/B testing questions. Some I was able to solve using statistical intuition. Some were cookbook recipes a la "have you done process X before when running an experiment?". Really terrible experience when there's actually plenty of experience that could relate except A/B experimentation. When telling the interviewer that there's no industry experience, got condescending answer attacking my credentials that I don't want to repeat publicly. Will stay away from Twitter in the future. Got multiple standard top-tech offers in that field when I was evaluated according to what was discussed prior (e.g. Google).

      Perguntas de entrevista [1]

      Pergunta 1

      Several A/B testing strategies for several settings encountered within Twitter
      Responder à pergunta

      Outras avaliações de entrevista de vagas de Senior Data Scientist da empresa X

      Entrevista para Senior Data Scientist

      30 de out. de 2021
      Candidato(a) sigiloso(a) à entrevista
      Nenhuma oferta
      Experiência negativa
      Entrevista com nível médio de dificuldade

      Candidatura

      Candidatei-me de outra forma. Fiz uma entrevista na empresa X.

      Entrevista

      This is the WORST interview experience I’ve ever had! Makes me not want to apply for Twitter ever again… During the interview process, the hiring manager asked about my previous projects. When I was describing my projects, she interrupted me many times and was showing clear contempt. There was this look on her face, a very obvious contempt smile, making me feel the projects I described were useless and stupid… If you are not interested in hiring, just don’t waste people’s time. I want to share this experience. I interviewed at many companies and I interview candidates myself too, this makes me very uncomfortable. The hiring manager is disrespectful and very unprofessional. Also the interview process was not very organized…

      Perguntas de entrevista [1]

      Pergunta 1

      Tell me about your past projects
      Responder à pergunta
      5

      Entrevista para Senior Data Scientist

      3 de out. de 2016
      Candidato(a) sigiloso(a) à entrevista
      San Francisco, CA
      Nenhuma oferta
      Experiência negativa
      Entrevista com nível médio de dificuldade

      Candidatura

      Candidatei-me por meio de recrutador(a). O processo levou pelo menos um ano. Fui entrevistado pela X (San Francisco, CA) em ago. de 2015

      Entrevista

      So, this is kind of a long story about my experience with recruiting at Twitter over a period of more than a year. About over a year ago now, a Twitter recruiter reached out to me. We did the initial screen, and arranged a technical phone screen. The technical seemed to go fine. It was some coding and machine learning questions. I would have guessed that I passes it, but you never know. A few days later I got an email from the recruiter saying that I didn't pass the technical and that they wouldn't proceed with the process. OK, that's fine. A month later, I received another email from a different recruiter at Twitter asking me for times to schedule my technical phone screen. This was a surprise of course, since I had been told I had failed the other screen, and I'd never heard of Twitter doing 're-do' technical phone interviews. Anyway, I gave her some times I was available, and she scheduled a phone interview with an engineer. That one went as well as the first, which again seemed fine. A week later, I got a congratulatory email from the second recruiter, saying I passed the phone screen and I was moving on to an onsite. So, we arranged that. Before the onsite, I asked who I would interview with, and what teams I was interviewing for. She said she didn't know, but that I would be told when I came in. This was a bit sketchy. As a candidate, interviewing is time-consuming, and on-sites even more so. If I was interviewing for teams I didn't want to work on, I was going to be waisting my time. But I went along with it. During the on-site, I never learned who which teams I was interviewing for. I asked the welcoming recruiter, and they didn't know. I asked each of the interviewers, and they didn't know. I left the building and still didn't know which teams I was interviewing for. After that, there was just radio silence. No more emails from Twitter for about a year. A few months ago, about a year after the previous onsite, I got another feeler email from a new recruiter. They said that they had my resume on file and they had some teams that were interested in talking with me. We spoke on the phone and I was strait with the recruiter about my previous onsite experience. In response, he said that they definitely make sure they everyone knows what role they're interviewing for and that he thought that it was unlikely that that happened. Not really an apology, more telling me that my story wasn't true. Ugh, OK, fine. Anyway, I gave them my availability for technical phone calls, and waited. Then radio silence again. That was a few months ago. Now, my story is bad enough, but I have two other friends and former co-workers who have gone through the Twitter on-site process and have similar stories, one a SWE and the other a front-end dev/designer. They came to to the Twitter office in SF not really knowing what role they were interviewing for, left the in-site not knowing what role they were interviewing for, and then never heard back. This seems to be a common pattern.

      Perguntas de entrevista [1]

      Pergunta 1

      Typical for more engineering focused Data Science. Lots of coding problems, a few ML and stats theory, a few applied ML questions, and some information retrieval and search questions.
      Responder à pergunta
      1

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