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      Cobblestone Energy

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      Related searches: Cobblestone Energy reviews | Cobblestone Energy jobs | Cobblestone Energy salaries | Cobblestone Energy benefits
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      Junior Data Scientist Interview

      21 Apr 2026
      Anonymous employee
      Dubai

      Other Junior Data Scientist interview reviews for Cobblestone Energy

      Junior Data Scientist Interview

      23 Feb 2026
      Anonymous employee
      Dubai
      Accepted offer
      Positive experience
      Accepted offer
      Positive experience
      Average interview

      Application

      I interviewed at Cobblestone Energy (Dubai)

      Interview

      I have gotten an offer to do the HR call soon, wanted to share experience so far. Pretty prompt responses from the team, the aptitude test was also pretty neutral, not too tough. Basic maths like % increase decrease, along with logical reasoning (predicting next shape and stuff), overall not bad. you get your marks then and there as well.
      Difficult interview

      Application

      I applied online. The process took 4 weeks. I interviewed at Cobblestone Energy (Dubai) in Jul 2025

      Interview

      The interview process consists of several steps that evaluate technical and soft skills, as well as cultural fit. The rounds I did were: 1. Online application. Fill required fields and share CV. Had to think about a recent weather event and how it affected energy prices. 2. Online test. Logic/math test with pattern recognition, math operations, and sequences. 3. HR round. Short chat with HR with some behavioral questions and also questions about my biggest achievements 4. Research project. Was given a topic to research for one week and produce a report with trade ideas. 5. Mental math (things like 15% of 300) and brainteasers (typical probability problems, not high difficulty) round with an interviewer. 6. Was given some study material about UK energy market and one week to go through it. Then talked with a trader who tested my understanding of this material and how it applies in real life. Definitely the hardest round, especially because I got asked questions that are not directly covered in the material. But after they explained, I was able to work out the following questions combining the newly acquired logic with the prep material. 7. Cultural fit round with trading manager. Talked about my background, my path, what I want to achieve, motivations, etc. Also explained the company ethos and aspirations. 7. Chat with the CEO. The CEO asked me to speak about anything I like. We discussed for around 40 minutes and basically he wanted to understand how I reason, what are my intellectual interests, and what drives me. Overall, the process is long and intense. Each individual round is fairly easy on its own, but the approach is holistic so you need to be well-rounded and also keep the spirit up throughout the process, which took around one month in my case.

      Interview questions [1]

      Question 1

      - Why do you want to join Cobblestone? - How do you think you did during this interview? - Explain one time when things didn't go as you planned. What did you do?
      Answer question

      Junior Data Scientist Interview

      9 Dec 2022
      Anonymous interview candidate
      No offer
      Positive experience
      Easy interview

      Application

      I interviewed at Cobblestone Energy

      Interview

      Sent me a link for an aptitude test a few days after I sent in my application. It was very fast and I was surprised. Because I had actually forgotten to attach my high school transcript and thought yep, that's the end. But actually glad to have gotten this far.

      Interview questions [1]

      Question 1

      Some numerical questions were asked in the tes
      Answer question
      1