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Machine Learning

Machine Learning Tests for Hiring Engineers

The machine learning quiz assesses a candidate’s understanding of the concepts of machine learning engineering in production. It’s determined by their performance on questions that assess both theoretical knowledge and practical use of common model types, mathematics concepts from multivariate calculus and linear algebra, and real-world deployment concerns.

The machine learning assessment tests an engineer's understanding of general machine learning theory, such as the use cases of different model types and common failure modes.

What skills does the Machine Learning test cover?

• Ability to inspect, clean, and manipulate/prepare data
ㅤㅤ• Discover missing values, invalid values, skewed distribution in a dataset that could impact training
ㅤㅤ• Identify relevant transformations and their benefit
• Demonstration of knowledge about using and training common machine learning models
ㅤㅤ• Given a high-level problem, identify the problem type and candidate models
ㅤㅤ• List common models, when each is appropriate, and how it works behind the scenes
ㅤㅤ• Describe tradeoffs involved between different models, along with considerations needed when choosing between them
ㅤㅤ• Describe relevant hyperparameters for a given model and a procedure for selecting optimal values
ㅤㅤ• Describe various "ensemble" methods that could improve model performance
ㅤㅤ• Split a dataset into multiple parts in a way that optimizes model performance
ㅤㅤ• Understand underfitting and overfitting, detection and how to address
• Ability to monitor, evaluate, and maintain deployed ML systems as they evolve
ㅤㅤ• Detect and solve data quality problems like distribution shift, skewed datasets, missing values
ㅤㅤ• Describe suitable metrics to measure model performance and tradeoffs between them
• Ability to efficiently implement ML systems using algorithms that minimize training time, memory usage, or other limited resources
ㅤㅤ• Online/streaming algorithms
ㅤㅤ• Efficient access and usage of available memory
ㅤㅤ• Parallel and distributed training

Used to hire engineers by teams like
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Test Overview

  • How long it takes to complete this skill block:
    This section takes 15 minutes to complete
  • Role this block is best suited for:

    • Machine Learning Engineers

  • Related skill blocks:

    • Data Science
    • Python

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