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      Data Scientist Interview

      Oct 1, 2025
      Anonymous interview candidate
      Tokyo
      No offer
      Neutral experience
      Easy interview

      Application

      I interviewed at Rakuten (Tokyo)

      Interview

      1st Interview was simple leetcode task and some questions about Kubernetes. 2nd interview - classical ML and DL questions, Final interview is mostly informal, but there may appear some questions about specific experience and problem solving

      Interview questions [1]

      Question 1

      What is the difference between random forest and boosting?
      Answer question

      Other Data Scientist interview reviews for Rakuten

      Data Scientist Interview

      Apr 1, 2026
      Anonymous employee
      Accepted offer
      Negative experience
      Easy interview

      Application

      I interviewed at Rakuten

      Interview

      this interview process had 5 rounds 2 was a tech test 3 were conversational in nature with various managers from direct and indirect to the department manager mostly in Japan but also outside Japan.

      Data Scientist Interview

      Sep 3, 2025
      Anonymous interview candidate
      Tokyo
      No offer
      Neutral experience
      Average interview

      Application

      I interviewed at Rakuten (Tokyo)

      Interview

      Initial LeetCode coding test, hiring manager interview for profile and role fit, multiple technical rounds covering statistics, machine learning, SQL, Python, and case studies, concluding with behavioral interviews evaluating teamwork, communication, and cultural alignment.

      Interview questions [1]

      Question 1

      Statistics (p-value, hypothesis testing), ML (overfitting, bias-variance, metrics), SQL (joins, aggregations, ranking), Python (data cleaning, algorithms), Case studies (churn prediction, A/B testing, recommendation systems).
      Answer question