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ML Knowledge
2 years ago
How many and what types of loss functions have you come across in your experience?
Machine Learning Engineer

Roku

Databricks

Chewy

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2 years ago
System Design
2 years ago
Develop a streaming music service similar to Spotify.
Machine Learning Engineer

Roku

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2 years ago
System Design
3 years ago
Design a system for real-time processing of satellite imagery.
Machine Learning Engineer

Roku

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3 years ago
Coding
3 years ago
How would you use a greedy approach to search for the smallest subarray with a sum surpassing a target sum?
Machine Learning EngineerData Scientist

Roku

AT&T Logo

AT&T

SAP Concur Logo

SAP Concur

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3 years ago
ML Knowledge
3 years ago
How do CNNs and RNNs compare in their approach to handling sequential data?
Machine Learning Engineer

Roku

Expedia Logo

Expedia

Samsara Logo

Samsara

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3 years ago
ML Knowledge
3 years ago
Describe a machine learning model you are familiar with and how it operates.
Machine Learning EngineerData Scientist

Roku

BuzzFeed Logo

BuzzFeed

Andela Logo

Andela

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3 years ago
ML Knowledge
3 years ago
How do you tackle the issue of high cardinality within categorical data fields?
Machine Learning Engineer

Roku

Huawei Logo

Huawei

Adobe Logo

Adobe

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3 years ago
Coding
3 years ago
What method would you use to locate the longest sequence of non-repeating characters in a substring?
Machine Learning Engineer

Roku

Productboard Logo

Productboard

Chegg Logo

Chegg

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3 years ago
ML Knowledge
3 years ago
Which optimization algorithms are you acquainted with? Can you discuss strategies for dealing with an optimization task that involves a million variables? Could you walk me through the workings of the simplex method in optimization?
Machine Learning Engineer

Roku

Uber Logo

Uber

Klarna Logo

Klarna

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3 years ago
ML Knowledge
3 years ago
Provide an overview of the BERT architecture's mechanics and its advantages over the BiLSTM.
Machine Learning Engineer

Roku

Expedia Logo

Expedia

Monzo Logo

Monzo

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3 years ago

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*All interview questions are submitted by recent Roku Machine Learning Engineer candidates, labelled and categorized by Prepfully, and then published after being verified by Machine Learning Engineers at Roku.

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