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      Machine Learning Engineer Interview

      Jun 28, 2026
      Anonymous employee
      Accepted offer
      Positive experience
      Easy interview

      Application

      I interviewed at Citadel

      Interview

      The technical round kicked off with a query about choosing models for trading tasks, which felt straightforward. Then I tackled a problem analyzing correlations and generating Gaussians. The interesting part was recognizing the prompt instantly — it was the same question I had worked through on prachub.com during my prep. Overall, the interviews moved quickly, with a positive vibe throughout, and I felt confident enough to accept the offer when it came through.

      Interview questions [2]

      Question 1

      Choose models for trading tasks
      Answer question

      Question 2

      Analyze correlations and generate Gaussians
      Answer question

      Other Machine Learning Engineer Interview Reviews for Citadel

      Machine Learning Engineer Interview

      Feb 24, 2025
      Anonymous Interview Candidate
      No offer
      Positive experience
      Difficult interview

      Application

      I applied online. The process took 4 weeks. I interviewed at Citadel in Jan 2025

      Interview

      Went through a phone screen, then an onsite with 4 interviews. No offer, everyone was very nice, they asked about my PhD work. Then some questions were about brainstorming new ideas for price prediction.

      Interview questions [1]

      Question 1

      How do you quickly raise a matrix to a given power
      Answer question