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      BillionToOne

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      Clinical Laboratory Assistant Interview

      May 26, 2026
      Anonymous interview candidate
      No offer
      Neutral experience
      Average interview

      Application

      I interviewed at BillionToOne

      Interview

      App , Test gorilla , Screening , 2 30 min Interviews , In person practical , Final Interview , then Offer Pretty long process but they really want to make sure they are selecting the right people it seems

      Interview questions [1]

      Question 1

      What is PCR and what are ways it could go wrong ?
      Answer question

      Other Clinical Laboratory Assistant interview reviews for BillionToOne

      Clinical Laboratory Assistant Interview

      May 23, 2026
      Anonymous interview candidate
      No offer
      Positive experience
      Average interview

      Application

      I interviewed at BillionToOne

      Interview

      I went through 2 rounds of interviews, the second of which was onsite. I was asked a series of technical but mostly behavioral questions. I was also required to do a lab practical which consisted of a simple PCR set up.

      Interview questions [1]

      Question 1

      Describe the steps of PCR.
      Answer question

      Clinical Laboratory Assistant Interview

      May 28, 2026
      Anonymous interview candidate
      Menlo Park, CA
      No offer
      Positive experience
      Average interview

      Application

      I applied online. I interviewed at BillionToOne (Menlo Park, CA) in May 2026

      Interview

      Online TestGorilla Assessment testing basic reading comprehension and understanding of data. 45 minute interview with a prior CLA who became a supervisor. Most questions were basic such as strengths, going above and beyond, and basic career goals. Few questions about lab skills and experience with those respective skills.

      Interview questions [1]

      Question 1

      When is a time you went above and beyond? What was your least favorite thing about a previous workplace? How are you working independently? What are the basic steps in PCR and what are some of the ways it can go wrong? How much experience do you have in micropipetting?
      Answer question