Amazon
E-commerce and cloud computing giant with AWS, the world's leading cloud platform.
5 Rounds
~28 Days
Very Hard
The Interview Loop
Recruiter Screen (30 min)
Standard fit check, behavioral questions, and resume overview.
Technical Loop (3-4 Rounds)
Deep dive into domain knowledge, coding, and system design.
Interview Question Bank
Data Scientist
•
Technical
•
hard
How do you design an A/B test for a new product feature?
#A/B Testing
#Statistics
Data Scientist
•
Technical
•
hard
How would you design an experiment to measure the impact of a new ranking algorithm?
#Experimentation
#Metrics
Data Scientist
•
Technical
•
hard
What is a network effect in experimentation? How do you handle SUTVA violation?
#SUTVA
#Network Effects
Data Scientist
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Technical
•
easy
What is an experiment holdout group?
#Holdout
#Control Group
Data Scientist
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Technical
•
hard
We want to test a new pricing algorithm for Amazon third-party sellers. If we randomize at the seller level, how might network effects bias the A/B test results, and how would you design the experiment to mitigate this?
#A/B Testing
#Network Effects
#Switchback Testing
#Cluster Randomization
Difficulty Radar
Based on recent AI-sourced data.
Meet Your Interviewers
The "Standard" Interviewer
Senior EngineerFocuses on core competencies, system constraints, and clear communication.
SimulateUnwritten Rules
Think Out Loud
Always explain your thought process before writing code or drawing architecture.