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      Mosaic Smart Data

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      Data Scientist Interview

      11 Jun 2022
      Anonymous interview candidate
      London, England
      Declined offer
      Positive experience
      Average interview

      Application

      I applied through other source. The process took 1 week. I interviewed at Mosaic Smart Data (London, England) in May 2022

      Interview

      a 30 min introductory informal call with one senior data scientist in the team, followed up a take home DS exercise (with emphasis on good software engineering practice) and then a 90-min in-depth technical interview on data science/ML topics with the whole DS team. There is also likely to be a 30 min non-technical call with the CEO after The whole interview process is very quick (can be finished within a week). All interviewers was extremely nice and chilled, and were happy to answer any questions I had

      Interview questions [1]

      Question 1

      what are the tests to check whether a time series is stationary or not?
      1 Answer

      Other Data Scientist interview reviews for Mosaic Smart Data

      Data Scientist Interview

      3 Sept 2019
      Anonymous interview candidate
      London, England
      No offer
      Negative experience
      Difficult interview

      Application

      I applied through a recruiter. The process took 3 days. I interviewed at Mosaic Smart Data (London, England) in Jul 2019

      Interview

      The interview process has 3 steps: 1. step: Python coding assignment where a list of tuples with strings need to be sorted and where special cases need to be considered, too. 2. step: telefon interview with mathematical (analysis, stochastics) and machine learning questions 3. step: in place interview with mathematical (analysis, stochastics) and machine learning questions In part 2 and 3 one of the interviewers asked the maths questions. The questions were really tough and the interviewer did not except alternative solution strategies. The other questions were asked by another interviewer. Overall a very bad experience, they let me enter to the third part, the in place interview and again they only asked me technical questions, not a single question about my background or soft skills or something else. It was also poorly organized: The invitation to the in place interview I got at the same day the interview took place.

      Interview questions [1]

      Question 1

      What is the integral of 1/sin(x)?
      1 Answer
      avatar
      Mosaic Smart Data response
      6y
      Thanks for sharing your feedback with us. We are disappointed to hear that you had a negative experience with our technical interview process. As a data & analytics platform, the technical standards we require of our Data Scientists are very high and the tests we set are necessarily tough. We care passionately about our culture and make sure to assess all candidates on their fit with our culture and values. However, this only takes place once the technical criteria has been met. We realise that failing a technical test can feel like a negative experience for many candidates but we do our best to ensure the process itself is well organised and positive. On this note, you mention that the process was badly organised as you attended an interview at very short notice. We have to move quickly as it's a fast market for talent so if candidates are willing and able to meet us at short notice, we typically jump at the chance. I am sorry if this led to you feeling rushed. I'd welcome the chance to discuss any further feedback you may have directly so please don't hesitate to contact me. We wish you all the best with your job search and thank you again for the time you invested in Mosaic Smart Data.

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