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      Research Scientist Interview

      Jan 20, 2026
      Anonymous Interview Candidate
      No offer
      Negative experience
      Difficult interview

      Application

      I interviewed at TikTok

      Interview

      Interviewer was unclear about role expectations, asked vague questions, provided minimal context about team or projects. Felt rushed, no time for candidate questions. Unprofessional experience, difficult to assess mutual fit.

      Interview questions [1]

      Question 1

      Describe GRPO loss and other RL algorithm
      Answer question

      Other Research Scientist Interview Reviews for TikTok

      Research Scientist Interview

      Mar 16, 2026
      Anonymous Interview Candidate
      San Jose, CA
      No offer
      Positive experience
      Easy interview

      Application

      I interviewed at TikTok (San Jose, CA)

      Interview

      self introduction; easy coding (write a function to produce fibonacci numbers + complexity analysis + recusion/dynamic programming); deep dive into my own research; casual talk on the team and tasks;

      Interview questions [1]

      Question 1

      talk about one of my recent research
      Answer question

      Research Scientist Interview

      Apr 24, 2026
      Anonymous Interview Candidate
      San Jose, CA
      No offer
      Neutral experience
      Easy interview

      Application

      I applied online. The process took 4 weeks. I interviewed at TikTok (San Jose, CA) in Mar 2026

      Interview

      The process started with an HR screening, followed by three technical interviews, and concluded with a final interview with the Hiring Manager. Overall, the process moved quickly, and each stage felt smooth and well-structured. My performance seemed solid throughout, and the discussions with the interviewers were generally positive and engaging. Despite this, I was ultimately rejected after the final interview.