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      TetraScience

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      Data Engineer Interview

      6 June 2024
      Anonymous interview candidate
      No offer
      Negative experience
      Difficult interview

      Application

      I applied through an employee referral. I interviewed at TetraScience in May 2024

      Interview

      Technical interview. Interviewer & recruiter didn't really provide any prep advice/goals, so I went in preparing for conversation on data engineering projects and likely working with some data - writing queries, working in a programming language to organize or analyze data, etc. What I got was more or less no questions about experience/projects and a leetcode task that little to nothing to do with anything I'd ever needed to do on the job in the past ten years. Now to be clear: lots of places do this, and there's very little point in wringing our collective hands about it. Sadly, memorizing a bunch of Data Structures and Algorithm implementations and doing a ton of leetcode/codewars problems in your spare time (read: free work) DOES in fact help get hired various places. It was kind of a negative experience, however, for two reasons: 1) I wish I'd had some tiny inkling beforehand that I should be doing leetcode problems instead of, you know, preparing for a job-specific test. Meta does this! Lots of places give you some prep materials or a rough idea of what to expect! It's not hard to do! 2) At the end, the interviewer looked at my solution and said "You know, usually it's only 7 or 8 lines" condescendingly. Look, the price of copying and pasting a problem from the internet/your old textbook was your primary interviewing method is that you're supposed to be aware that not everyone read your mind and memorized that exact problem or something entirely close to it the previous night, and you're supposed to recognize that unless someone did, the solution may be a bit messy. Overall, the interview experience was at least pretty straightforward: solve this leetcode problem fast enough/with few enough lines for your interviewer to like you, and you move ahead. But the experience was negative: because of 1) The lack of basic consideration to the interviewee (not giving them any kind of expectation or focus for their prep time) and 2) The clear belief on the part of the interviewer that a technical interview isn't about the process or problem-solving: it's about getting the perfect answer 3) The fact that the interviewer felt safe & felt that they were within the bounds of professionalism making a condescending remark at the end of the experience. TetraScience is doing really fascinating things. I'd happily reapply there: I don't think I'd want to reapply to that team, or at least to get that interviewer again. If you endlessly grind leetcode for fun the interview experience may be pretty decent. If you don't, or feel your work experience/job skills/personality should be the primary arbiter, you may want to avoid.

      Interview questions [1]

      Question 1

      Write an algorithm to arrange and parse a string in a highly specific way (wish I could give you a more exact description, but it was a good while ago. Suffice to say it was right out of leetcode.)
      Answer question
      5

      Other Data Engineer interview reviews for TetraScience

      Data Engineer Interview

      3 June 2025
      Anonymous interview candidate
      No offer
      Negative experience
      Difficult interview

      Application

      I applied through a recruiter. The process took 6 weeks. I interviewed at TetraScience in Apr 2024

      Interview

      Endless process... IMO it was really bad and most stages are unnecessary. First there were some general calls with technical manager, HR, each about 1 hour long.. Next, a technical interview, first about an hour talking. Then another 1hr long meeting of live coding. I supposedly aced the technical interview which was a medium-level leetcode problem which was crazy in my opinion and doesn't really test a lot. But somehow my brain really focused and I managed to come up with a nice solution. Still, this was not at all enough for them. They gave me homework which was to prepare a presentation about the platform. zthey gave me access to the plaftorm and it was a mess, documentation pretty bad. I managed to get a grasp on how it works, then they claimed that I need to show my testing skill and they basically wanted me to debug this really messy platform to "see how I test and debug" problems. Of course everything for free and at this point I spend multiple hours testing their poor solution. This was enough for me and I resigned... no idea if there was really an offer coming or they just look for free labor.

      Interview questions [1]

      Question 1

      Some leetcode problems, one easy and one medium. Rather basic/medium questions about python. Experience from previous companies. Homework assignments....
      Answer question
      2

      Data Engineer Interview

      11 Aug 2020
      Anonymous interview candidate
      No offer
      Negative experience
      Difficult interview

      Application

      I applied online. I interviewed at TetraScience

      Interview

      Interview took place over Zoom. Interviewer seemed to doubt my 2+ years of coding experience right off the bat, so he gave me a live coding test while watching my screen over Zoom. I obviously didn't do well, so he said my coding abilities weren't good enough to be considered for the position.

      Interview questions [1]

      Question 1

      Write a script to sort software version numbers from oldest to newest.
      Answer question
      1