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Chewy Data Scientist Interview Questions
& Process

Real candidates share what happened, how many rounds they had,
and how the experience turned out.

Based on 24 interview experiences · FREE TO READ

3.3 Rounds average
Average Typical difficulty
25% Positive experience

Candidate interview experiences

First-hand accounts from people who interviewed at Chewy.

Showing 3 of 24
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Data Scientist

Analytics · more than a year ago

Mid Average Negative experience No offer 4 rounds
Interview process
Recruiter call Phone screen Technical screen Onsite
Interview formats
Technical Coding Behavioral

Got a call from the recruiter, no email, just asking my availability. They set up a call with the hiring manager which was fine, asked standard questions. But the rest was a mess. After the HM call, I was expecting a coding screen (Python/SQL) and then a virtual onsite. Instead, the recruiter booked 4 one-hour interviews for Monday with less than 24 hours notice, like literally scheduling them all on Sunday and I didn't get meeting links until an hour before the first one. No breaks in between. The questions felt repetitive, mostly asking if I could build linear regression models fast under changing stakeholder demands.

Confirmed questions2 questions
  • Tell me about standard SQL questions.
  • Tell me about standard Python questions.
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Chewy

Data Scientist

Analytics · more than a year ago

Senior Easy Neutral experience No offer 7 rounds
Interview process
Recruiter call Technical screen Onsite Panel Background check Offer
Interview formats
Behavioral Technical Coding

Interview process had 7 rounds, not counting HR. 5 rounds were part of a Panel interview, with 2 rounds before that. The hiring team was great, but too many behavior questions. HR was not so cool, mixing up time zones and giving me the wrong interview time. Mistakes happen, but I expected better from a company like Chewy. The lack of communication and broken promises were terrible. They said I'd get feedback early next week, but then two weeks later they said they'd give feedback and the result this afternoon, which never happened. Worst HR communication ever. About 4 out of the 7 rounds were purely behavioral. Interviewers were nice and communicated well. Three technical rounds had only tech questions, no coding or take-home challenge, which I think are crucial for assessing technical skills. The senior and lead data scientists were professional and asked in-depth questions.

Confirmed questions3 questions
  • All the Chewy behavior questions, honestly I'm a bit tired of them. You need to hire people who can communicate effectively and complete tasks.
  • At work, we use judgment and creativity with given information to solve problems, write documentation, and code.
  • So many qualities are important, not just behavioral story-telling.
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Chewy

Data Scientist Intern

Analytics · more than a year ago

Intern Average Positive experience Accept offer 6 rounds
Interview process
Recruiter call Technical screen Take home Onsite
Interview formats
Behavioral Technical Coding

It was a pretty standard Data Science interview. It had 3 rounds in total. First, a recruiter call. Then, a technical screen with a Data Scientist. After that, a take-home assignment. Finally, there were 3 back-to-back interviews with 2 Data Scientists and the Hiring Manager. The focus was mainly on Statistics and machine learning models.

Confirmed questions2 questions
  • Could you describe what a Decision Tree is?
  • Can you explain the trade-off between bias and variance?

Chewy Data Scientist Interview Questions

Quoted word for word from Chewy interview reports.

What is the formula for gradient descent versus stochastic descent?

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Write a SQL query to list customers who placed the highest number of orders, ordered from highest to lowest.

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What's the difference between a HAVING clause and a WHERE clause in SQL?

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Could you implement K-means clustering from scratch using just NumPy?

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Can you write a SQL query to find the second highest salary?

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How do you decide which variables to exclude in a regression model?

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Formats, difficulty and experience

Across all 24 Chewy interview reports.

Interview formats

Technical 37.7%
Behavioral 27.9%
Coding 23%
Case 4.9%
Presentation 3.3%

Interview difficulty

Easy 16.7%
Average 62.5%
Difficult 20.8%

Candidate experience

Negative 33.3%
Positive 25%
Neutral 41.7%