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Amazon Applied Scientist interview questions

based on 292 ratings - Updated May 11, 2026

Average interview difficulty

Mostly positive interview experience

How others got an interview

55%
Applied online
Applied online
20%
Employee Referral
Employee Referral
19%
Recruiter
Recruiter
4%
Campus Recruiting
Campus Recruiting
2%
Other
Other
1%
In Person
In Person

Interview search

292 interviews

Applied Scientist Interview

Apr 16, 2020

Anonymous Interview Candidate

No offer

Positive experience

Average interview

Application

I applied online. The process took 2 weeks. I interviewed at Amazon (New York, NY) in Feb 2020

Interview

Phone round interview: 10 mins introduce yourself and bq questions like Tell the story of the last time you had to apologize to someone. 20 mins on the resume about project 20 mins machine learning concept 10 mins coding. Compare two strings Last Q&A.

Interview questions [1]

Question 1

Most familiar ML models

1 Answer

Applied Scientist Interview

Apr 7, 2020

Anonymous Interview Candidate

No offer

Neutral experience

Difficult interview

Application

I applied through an employee referral. The process took 2 weeks. I interviewed at Amazon in Apr 2020

Interview

Got referred by a friend, the manager expressed interest and scheduled an interview for me although I specifically said I don't know SQL and it was a requirement for the application. However didn't get asked about it as I was promised.

Interview questions [6]

Question 1

Explain ICA, and CCA. How do you get to CCA objective function from PCA.

1 Answer

Question 2

What is the relationship between PCA with polynomial kernel and a single layer autoencoder ? What if it is a deep autoencoder?

Answer question

Question 3

What is "random" in random forrest? Data, features etc. If you use a logistic regression instead of a decision tree in random forrest how will your results change? What is bagging explain with all the details.

Answer question

Question 4

given an array a, return the indices i,j that minimize |a_i -a_j|

Answer question

Question 5

explain how l1 regularization solvers work.

Answer question

Question 6

What is the interpretation of an ROC area under the curve as an integral?

Answer question

Applied Scientist Interview

Mar 27, 2020

Anonymous employee

Accepted offer

Positive experience

Average interview

Application

I applied through an employee referral. The process took 3 weeks. I interviewed at Amazon (Seattle, WA) in Mar 2020

Interview

I was interviewed for an internship position. I had two interviews, one on machine learning and the other on Leetcode problems. Both had some leadership principles questions too. Interviewers were very friendly.

Interview questions [1]

Question 1

NDA, cannot disclose.

1 Answer

Viewing 236 - 240 of 292 Interviews

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Applied Scientist Interview

Apr 16, 2020

Anonymous Interview Candidate

No offer

Positive experience

Average interview

Application

I applied online. The process took 2 weeks. I interviewed at Amazon (New York, NY) in Feb 2020

Interview

Interview questions [1]

Question 1

Most familiar ML models

1 Answer

Applied Scientist Interview

Apr 7, 2020

Anonymous Interview Candidate

No offer

Neutral experience

Difficult interview

Application

I applied through an employee referral. The process took 2 weeks. I interviewed at Amazon in Apr 2020

Interview

Interview questions [6]

Question 1

Explain ICA, and CCA. How do you get to CCA objective function from PCA.

1 Answer

Question 2

What is the relationship between PCA with polynomial kernel and a single layer autoencoder ? What if it is a deep autoencoder?

Answer question

Question 3

Answer question

Question 4

given an array a, return the indices i,j that minimize |a_i -a_j|

Answer question

Question 5

explain how l1 regularization solvers work.

Answer question

Question 6

What is the interpretation of an ROC area under the curve as an integral?

Answer question

Applied Scientist Interview

Mar 27, 2020

Anonymous employee

Accepted offer

Positive experience

Average interview

Application

I applied through an employee referral. The process took 3 weeks. I interviewed at Amazon (Seattle, WA) in Mar 2020

Interview

Interview questions [1]

Question 1

NDA, cannot disclose.

1 Answer

Amazon

Amazon Applied Scientist interview questions

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Applied Scientist Interview

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