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SQL
2 years ago
What are SQL window functions? Explain aggregation and joins.
Data Scientist

Deliveroo

Stitch Fix

Quantcast

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2 years ago
ML Knowledge
2 years ago
What is your understanding of why feature selection plays such a critical role in machine learning?
Data Scientist

Deliveroo

Swiggy

Noon

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2 years ago
Behavioral
2 years ago
Is there anything you would change about Deliveroo?
Data Scientist

Deliveroo

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2 years ago
Analytics Case
2 years ago
What factors do you consider when forecasting a user's lifetime value?
Data Scientist

Deliveroo

Mozilla Logo

Mozilla

Twilio Logo

Twilio

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2 years ago
Coding
2 years ago
What's the procedure for producing 1000 normally distributed samples with mean=x and variance=y in R, conducting a summary statistical analysis, and graphing a density plot? Implement the equivalent in Python via the Codility online editor.
Data Scientist

Deliveroo

Quora Logo

Quora

Brex Logo

Brex

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2 years ago
Coding
2 years ago
How do you handle dot product calculations when dealing with sparse matrices?
Data ScientistMachine Learning Engineer

Deliveroo

Tesla Logo

Tesla

Postmates Logo

Postmates

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2 years ago
Behavioral
2 years ago
What is your most significant achievement?
Data ScientistProgram ManagerFrontend EngineerFull Stack Software Engineer

Deliveroo

Cognizant Logo

Cognizant

Babylon Health Logo

Babylon Health

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2 years ago
ML Knowledge
2 years ago
In your experience, what are some of the examples of real-world scenarios where overfitting and underfitting have posed challenges for model performance and accuracy? What are the outcomes?
Data Scientist

Deliveroo

DigitalOcean Logo

DigitalOcean

Bill.com Logo

Bill.com

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2 years ago
ML Knowledge
2 years ago
When faced with a new machine learning problem, how do you determine which algorithm to implement?
Data Scientist

Deliveroo

Springboard Logo

Springboard

Huawei Logo

Huawei

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2 years ago
Big Data
2 years ago
I'm interested in your understanding of MapReduce and its inner workings. Could you elaborate?
Data Scientist

Deliveroo

Affirm Logo

Affirm

SurveyMonkey Logo

SurveyMonkey

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2 years ago

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

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