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Computer Vision Engineer Assessment: A comprehensive skills evaluation

The Computer Vision Engineer Test is a pre-employment screening test to assess candidates' knowledge and understanding of ML fundamentals, advanced CV concepts, Python concepts, Python ML frameworks, libraries, and hands-on programming. The test helps identify professionals who can design software solutions to help computers process visual data for solving complex problems or executing specific tasks. 

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Inside this Computer Vision Engineer Test

Computer vision engineers apply machine learning and computer vision research to solve real-world problems using extensive data and statistics, employing supervised or unsupervised learning. With expertise in image recognition, deep learning, AI, advanced computing, data science, and image/video segmentation, they solve problems through computer vision engineering principles.

The Computer Vision (CV) Engineer Test is a pre-hiring evaluation to ascertain applicants' suitability for CV engineering-based roles that require expertise in utilizing visual data for automation, product development, and decision-making. This meticulously crafted assessment serves as a reliable tool for recruiting candidates with a solid technical background and problem-solving abilities in computer vision.

Candidates are evaluated on their understanding of ML Fundamentals, which include basic concepts such as supervised and unsupervised learning, overfitting, underfitting, and model evaluation. Additionally, their familiarity with traditional algorithms such as Support Vector Machines (SVM), Principal Component Analysis (PCA), Naïve Bayes (NB), clustering, decision trees, and linear regression is to be assessed.

Moreover, questions based on feature engineering specific to computer vision aim to assess candidates' knowledge of image resizing and cropping, image reading using various libraries, preprocessing methods like normalization and data augmentation, as well as representation techniques like filtering, segmentation, feature extraction, HOG, Haar cascades, and image transformation.

The test also encompasses questions based on advanced concepts, both generic and CV-specific. The advanced generic concepts-based topics include- deep neural networks (DNN), ensembling, handling imbalanced datasets, transfer learning, error functions, optimization algorithms, backpropagation, dropout layers, and hyperparameter tuning. In the advanced concepts within the context of CV, candidates dive into topics like convolutional neural networks (CNN) and pooling layers.

The Python concepts-based section assesses their proficiency in fundamental Python concepts, including language basics, data structures, functions, and regular expressions. Candidates must also know Python ML frameworks like TensorFlow, PyTorch, and Python libraries. Finally, the test takers are presented with a hands-on programming challenge on Mercer | Mettl’s coding simulator, Codelysis. Tailored to address the stringent requirements of hiring managers seeking top-notch talent, this Computer Vision Engineer Skills Test encompasses a wide range of skill areas.

Key profiles the test is helpful for: 

  • Computer vision engineer 
  • Image processing specialist 
  • Robotics vision engineer 
  • Autonomous vision engineer 
  • Medical imaging specialist 
  • Surveillance system developer 


At the convergence of AI and machine learning, computer vision engineering enables computers to see and analyze visual data through deep learning and mathematical coding. CV engineers process and analyze vast data sets, automating predictive decision-making through visuals. This rapidly advancing field is extensively leveraged across tech industries and startups, from automotive and healthcare to entertainment and e-commerce, equipping computers with the ability to perceive images and extract their meaning. CV engineers are the visionaries behind this visual revolution, guiding the future of automation and innovation.

The demand for computer vision engineers has surged in recent years, driven by its widespread adoption across various industries. Companies rely on computer vision to extract insights, create innovative applications, automate operations, enhance quality control, and maximize performance.

Consequently, there is a consistent necessity for skilled engineers who can play a crucial role in developing computer vision solutions. However, identifying candidates with proficiency in computer vision can take time and effort. This is because computer vision is a multidisciplinary field that demands expertise in various domains such as machine learning, image processing, deep learning, etc.

The Computer Vision Engineer Test is a pre-employment screening tool that simplifies this hiring equation for recruiters, helping them conduct the screening and identify top talent efficiently. Through questions that measure candidates' knowledge of ML fundamentals (supervised, unsupervised, SVM, NB, PCA, clustering, data cleaning, HOG, etc.), advanced concepts (DNN, CNN, pooling layers, etc.), Python concepts (operators, variables, vector, parameters passing, etc.), Python-ML frameworks (tensor, matrix multiplication, creating networks), Python libraries (NumPy , pandas, lambda functions, etc.), and hands-on programming, this test provides a level-playing field to all the applicants aspiring to make their mark in this competitive domain.

Experienced candidates are presented with more advanced concepts such as general adversarial networks for image generation, deep neural networks for CV, applications of CV such as object detection, image classification, etc. 

In summary, this standardized test helps to identify prospects with the required computer vision expertise efficiently and effectively. Pre-screening through this assessment streamlines the hiring process, enabling organizations to secure qualified candidates who can drive innovation in computer vision.


This Computer Vision Engineer Test is a part of following Skills Libraries

Computer Vision Engineer Skills Test Competency Framework

Get a detailed look inside the test

Computer Vision Engineer Test Competencies Under Scanner

Computer Vision Engineer Test


ML fundamentals:

The test assesses candidates' ML fundamentals knowledge, including supervised and unsupervised learning, overfitting, and model evaluation. It also evaluates their proficiency in traditional algorithms like SVM, NB, PCA, clustering, decision trees, and linear regression. The feature engineering section covers the following topics: Data cleaning (image resizing, image cropping, reading images using different libraries), preprocessing (normalization, data augmentation) and representation (filtering, segmentation, feature extraction), HOG, Haar cascades, and image transformation.

Advanced concepts

The test assesses candidates' proficiency in advanced generic concepts, including deep neural networks (DNN), ensembling, handling imbalanced datasets, data augmentation, transfer learning, error functions, optimization algorithms, backpropagation, dropout layers, and hyperparameter tuning. In addition, it includes advanced CV concepts such as convolutional neural networks (CNN) and pooling layers.

Python concepts

The test evaluates candidates' competence in Python concepts, encompassing language fundamentals, data structures, functions, and regular expressions, covering topics like operators, variables, vectors, dictionaries, parameter passing, and regex pattern creation.

Python ML frameworks

The test assesses candidates' proficiency in Python ML frameworks, such as TensorFlow, PyTorch, etc., testing their skills in working with tensors, conducting matrix multiplication, and creating neural networks using these frameworks.

Python libraries

The test examines candidates' familiarity with Python libraries, including data handling tools and basic computer vision libraries. This evaluation encompasses knowledge of NumPy, Pandas, lambda functions, OpenCV, scikit-image, and Pillow.

Hands-on programming

The test evaluates candidates' hands-on programming skills in matrix and array manipulation. This assessment is conducted on a coding simulator called Codelysis.

Customize This Computer Vision Engineer Test

Flexible customization options to suit your needs

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Choose easy, medium or hard questions from our skill libraries to assess candidates of different experience levels.

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The Mercer | Mettl Computer Vision Engineer Test Advantage

The Mercer | Mettl Edge

  • Industry Leading 24/7 Support
  • State of the art examination platform
  • Inbuilt Cutting Edge AI-Driven Proctoring
  • Simulators designed by developers
  • Tests Tailored to Your business needs
  • Support for 20+ Languages in 80+ Countries Globally

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Frequently Asked Questions (FAQs)

The Computer Vision Engineer Test helps employers find candidates with the required skills and knowledge to excel in Computer Vision Engineer roles. It efficiently streamlines the hiring process, providing a holistic overview of candidates' technical skills, knowledge, and competencies. 

The Computer Vision Engineer Test assesses candidates' proficiency in an array of skills, including neural networks, transfer learning, feature engineering for CV, ML fundamentals, advanced concepts, Python, ML frameworks, Python libraries, and hands-on programming. The assessment evaluates respondents' ability to solve computer vision problems and is crucial for success in CV roles within an organization. 

Yes, the content and format of the assessment can be tailored to align with specific business requirements. Kindly contact Mercer | Mettl and outline your request; we will gladly assist you.