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      XTX Markets

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      Systems/Software Engineer Interview

      Jul 28, 2021
      Anonymous Interview Candidate
      No offer
      Negative experience
      Difficult interview

      Application

      I applied through a recruiter. The process took 4 weeks. I interviewed at XTX Markets in Jun 2021

      Interview

      I was approached by a recruiter, and the position sounded very interesting, so applied. Process started with a long chat with the manager. Which was both technical (very in-depth), soft skills and motivation. I then was given a coding exercise to complete at home. I enjoyed this - it was a nice task. I like this approach, both as an interviewer and interviewee - more realistic and in-depth than the typical 20-30 minute on-the-spot coding challenges. I got good feedback on this, and proceeded to interview with all the members of the team. The style of these varied with the person, with mixes of technical questions and two-way discussions on technology and motivations. Then I had an interviewer who warned me at the start their connection wasn't good. And indeed, it was awful. Mine was fine. My previous interview, on the exact same web conference, had been perfect. The audio was dreadful, even after the interviewer turned off their video. I could barely hear every other word. I had to interpolate much of what they were saying. I was given a coding screen (bit odd, given I'd done a much larger coding exercise) followed by algorithms. But it was a disaster, as I was struggling to figure out what they were saying and asking. The interviewer actually got a bit exasperated with me at times, for not picking up their lead, or following where they wanted me to go. Even became a bit patronising in tone. Which - after the fact - I found quite ridiculous. This person /knew/ they had a bad connection. I told them many times (gently) that I was struggling to hear them. I note there are at least two other reviews here with similar comments about bad connections. A bit of a pattern. Whether I would have passed that interview without those audio issues I don't know. Maybe, maybe not. At least then I wouldn't have left the interview feeling aggrieved by an interviewer seeming to mark me down me for my communication when it was due to _their_ problem. Unprofessional. Having candidates do a longer, multi-hour coding task /before/ a coding screen is also wasting candidates time. Do the short screen first!

      Interview questions [1]

      Question 1

      Networking: - Describe multicast - Describe what happens when a packet arrives, how it is processes Coding: - A coding exercise that takes 1 to 2 evenings (or a weekend) - Coding screen (after the long exercise!) - standard FANG type 20-minute question. - Algorithms questions: Find the shortest path on an infinite chess board, to a given co-ordinate, using knight-type moves, given a list of co-ords with obstacles. Unclear on the exact constraints, cause the audio just wasn't good enough for me to be able to get that from the interviewer.
      Answer question
      8