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MERN Stack Assessment for efficient screening and data-driven recruiting

The MERN Stack Recruitment Test is a pre-hire assessment that tech recruiters and hiring managers conduct to assess candidates by measuring their employability skills and domain knowledge. This pre-employment skill testing method ensures that candidates whose skills and competencies match the job roles are taken to the subsequent stage in the selection process. The test evaluates the applicant's skills in MongoDB, ExpressJS, ReactJS, and NodeJS.

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Inside this online MERN Stack Test

The MERN Stack Assessment is an initial screening tool that allows potential employers to screen candidates effectively based on their knowledge and expertise in MERN stack development. This test consists of 30 handpicked multiple-choice questions (MCQs) and takes 60 minutes to complete. Most importantly, the test score conveys the test-taker's performance and enables the recruiters and hiring managers to identify developers with the essential MERN skills.

Assessing a large pool of applicants and gaining in-depth insights into every candidate's ability without undergoing significantly tiresome processes is difficult without an automated assessment solution. This MERN Stack Recruitment Test is to be used for a holistic overview of a candidate's on-the-job skills and job readiness. People who score well in these tests have a profound understanding of the essential components of MERN stack and have skills that are well-aligned with the role requirements.

The test helps to screen candidates for the following roles:

  • Full stack developer - MERN Stack 
  • MERN stack developer 
  • Full stack developer (MERN) 


The MERN stack is one of the most preferred user-oriented JavaScript stacks for deploying full-stack web applications efficiently. MERN is an updated variant of the MEAN stack that relies on using the ReactJS front-end development framework. Being a full-stack solution, MERN follows the three-tier web architecture comprising the database tier (MongoDB), application tier (ExpressJS and NodeJS), and front-end display tier (ReactJS).

MERN developers are primarily responsible for designing and developing front-end web applications and writing testable, high-quality, and reusable code. They are also in charge of translating design wireframes into fully functional web applications. In addition, their work involves coordinating with development teams and managers to brainstorm software solutions. These developers are integral to design discussions, project planning and scheduling, and address and resolve any technical issues should the need arise.

To utilize the power of this JavaScript platform, one must hire MERN stack developers who know the intricacies and nuances of this technology. However, hiring the most suitable developers is becoming increasingly competitive and challenging for organizations. Therefore, the crucial challenge for a recruiter is to identify qualified candidates for the available position. Undeniably, an inadequate screening process and subpar technical evaluation deprive companies of the most sought-after candidates.

Hiring professionals should not give maximum weightage to resume accomplishments while screening for tech roles. Resumes do not paint a clear picture of a tech professional's abilities because they are not an accurate predictor of a candidate's on-the-job skills and work readiness. That is why the technical MERN Stack Assessment comes in handy to analyze and scrutinize a candidate's technical skills in the MERN stack. It does so by assessing the technical skills and competencies against some pre-defined parameters.

Conducting an online MERN Stack Test is essential in the recruitment process. The test includes terse and pertinent technical questions based on real-life problems and evaluates the applicant's problem-solving capability and domain knowledge. Undoubtedly, the MERN Stack Recruitment Test is the most efficient way for recruiters to screen candidates and gather a comprehensive understanding of their technical prowess.


This MERN Stack Recruitment Test is a part of following Skills Libraries

MERN Stack Developer Test competency framework

Get a detailed look inside the test

MERN Stack Online Test Competencies Under Scanner

MERN Stack



This test evaluates the following skills in this section: CRUD Operations, Join, Query, Regular Expression, Replica Set and Sharding, Performance Tuning, and Sort.


The following Express JS skills are covered in this section: Cookies, Restful API, Database, Routing, Templating, Middleware, and Authentication.


This test helps assess candidates' ReactJS React 16) skills before the interview: Fragments, Custom DOM Attribute, Server Rendering, Portals, Components and Props, Filters, and Binding.


The following skills in NodeJS are evaluated in this section: NPM, Node Design Patterns - Reactor Pattern, Callbacks, Encryption, Threadpool, and Streams and Buffer.

Customize This MERN Stack Online Test

Flexible customization options to suit your needs

Set difficulty level of test

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

Combine multiple skills into one test

Add multiple skills in a single test to create an effective assessment. Assess multiple skills together.

Add your own questions to the test

Add, edit or bulk upload your own coding questions, MCQ, whiteboarding questions & more.

Request a tailor-made test

Get a tailored assessment created with the help of our subject matter experts to ensure effective screening.

The Mercer | Mettl MERN Stack Developer 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

MERN Stack Online Test Can Be Setup in 4 Steps

Step 1: Add test

Add this test your tests

Step 2: Share link

Share test link from your tests

Step 3: Test View

Candidate take the test

Step 4: Insightful Report

You get their tests report

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Frequently Asked Questions (FAQs)

The Mercer | Mettl MERN Stack Recruitment Test is tailored for recruitment. However, we can do benchmarking for custom sample sets as well. Please write to us about your request; we will gladly assist you.

We have previously customized online MERN Stack Test reports based on the client’s requirements. So please write to us with your request, and we will be glad to provide you with a solution. 

The hiring manager will assess the candidate's technical knowledge and interpersonal skills during a technical interview. Here is a brief rundown of stages that ensure thoughtful preparation before an interview:

  • Candidates should know the interview format beforehand; they can connect with a recruiter for the same. 
  • They should brush up on theoretical concepts and knowledge. 
  • It is perfectly acceptable to ask for clarity if the candidates are unsure of what is being requested. 
  • A candidate's confident demeanor helps to establish a connection with the interviewer and sets the tone during the interview. 
  • Interviewees should be multifaceted in their problem-solving approach and try to analyze a given problem from multiple viewpoints. 
  • The candidate should be well-versed in the intricacies and nuances of MEAN stack development and revise the fundamentals. 

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