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SQL
3 years ago
What is the process you use to determine the rolling average of a metric over a set time period?
Data Scientist

Square

Riot Games

Expedia

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3 years ago
Behavioral
3 years ago
Tell me about an occasion when you stepped outside of your normal responsibilities to assist a colleague. What was the outcome?
Data ScientistTechnical Program ManagerSoftware EngineerProduct Manager

Square

DeviantArt Logo

DeviantArt

Lenskart Logo

Lenskart

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3 years ago
ML Knowledge
3 years ago
What are the main steps one should follow during an ETL process? How do you optimize this process?
Data Scientist

Square

Intel Logo

Intel

Coinbase Logo

Coinbase

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3 years ago
Behavioral
3 years ago
What do you believe will be the biggest challenge in the Square Data Scientist role?
Data Scientist

Square

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3 years ago
Coding
3 years ago
In Python, how do you script out the implementation of a hash table?
Data Scientist

Square

Cleo Logo

Cleo

Cruise Logo

Cruise

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3 years ago
ML Knowledge
3 years ago
Could you provide some specific applications of Time Series Forecasting in the real world?
Data Scientist

Square

Careem Logo

Careem

GoCardless Logo

GoCardless

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3 years ago
Statistics
3 years ago
When you split a population for A/B testing, what are some reasons you could see a significant difference in the control and variant groups?
Data Scientist

Square

Dollar Shave Club Logo

Dollar Shave Club

Rivian Logo

Rivian

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3 years ago
Statistics
3 years ago
How can you derive the interquartile range of a series of unsorted decimals?
Data Scientist

Square

LinkedIn Logo

LinkedIn

Groupon Logo

Groupon

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3 years ago
ML Knowledge
3 years ago
How does the ROC curve impact the accuracy of machine learning models?
Data Scientist

Square

Bosch Logo

Bosch

Slack Logo

Slack

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3 years ago
Coding
3 years ago
Write a code to generate independent and identically distributed (i.i.d.) draws from a given distribution X given that we only have access to a random number generator.
Data Scientist

Square

ClassPass Logo

ClassPass

HubSpot Logo

HubSpot

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3 years ago

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*All interview questions are submitted by recent Square Data Scientist candidates, labelled and categorized by Prepfully, and then published after being verified by Data Scientists at Square.

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