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Full Stack Developer Coding Test- Recognizing Excellence Through Evaluation

The full stack developer coding test is a prescreening tool used by recruiters to gauge on-the-job skills before an interview. It assesses a candidate's skills to develop the software application's client and server-side and helps reduce screening time while hiring tech talent.

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Inside This Full Stack Developer Test

The full stack developer assessment test is a unified assessment designed to evaluate an individual's abilities to code in front-end and back-end languages. The test is intended to scientifically assess the candidates' fundamental concepts, programming knowledge, and application skills in Core Java, JavaScript, MySQL, and Java Full Stack.  

The full stack developer coding test also evaluates the candidate's ability to create and consume APIs, work with SQL and MySQL databases, and write unit tests for all application tiers.  

This 90-minute full stack developer test has 18 MCQs and three coding problems to be solved on our front-end and back-end simulators. It evaluates subskills on three levels; basic, intermediate, and advanced.  

Designed by subject matter experts, the full-stack assessment is holistically developed to evaluate the candidate's programming knowledge and applied coding skills.  

This full stack developer test helps to screen candidates for the following roles:

  • Java full stack developer 
  • Core java developer 
  • Java Software Developer 


There is no denying the fact that full-stack developers have been in demand worldwide. Their demand has proliferated over the years. One striking reason is that their ability in various technological tools enables them to handle even the most challenging computer projects with full accountability. They are multifaceted professionals skilled enough to manage servers, databases, architecting, system engineering, and client communication.  

Full-stack developers have practical knowledge of all the languages, methodologies, and systems engineering concepts imperative for software development. They are well-versed with full-stack concepts, software development approaches, multiple web languages (CSS, HTML, JavaScript, Ruby, Python, etc.) and other tools needed to develop a full-fledged website/mobile application. They are also skilled in using frameworks such as Angular.js, Django, Node.js, etc.  

Their technical brilliance might be challenging to assess and even more time-consuming and intricate: how can one find that a particular candidate will meet an employer's expectations? The full stack developer assessment test is the key to hiring the most accomplished tech professionals. This technical assessment evaluates a candidate's skills across the entire web stack, from the front-end technologies (CSS, HTML, and JavaScript) to back-end programming languages (such as C#) to structured query language for accessing the database.  

The full stack developer test enables technical recruiters to screen and select candidates with the desired level of skills before an interview. It also will be instrumental in helping recruiters find potential hires by assessing their job readiness skills. That is why the test aims to evaluate the knowledge of applied skills rather than conceptual knowledge. With comprehensive, in-depth reporting comes the convenience of receiving an in-depth analysis of the candidate's performance, which helps employers make a data-driven hiring decision.  


This Full Stack Developer Test is a part of following Skills Libraries

Full Stack Developer Test Competency Framework

Get a detailed look inside the test

Full Stack Developer Assessment Competencies Under Scanner

Java Full Stack Development


Front End Simulator

The full stack developer coding test includes practical hands-on coding questions for assessing a candidate's front-end web development skills on a front-end simulator.

Hands-on Programming

Use this full stack developer assessment test to evaluate a candidate's coding skills on a coding simulator by giving real-world problems and assessing their hands-on experience and capability to code in the desired language.


This test also assesses a candidate's Core Java skills in JSP Actions, Java - JSP Directives and Java - JSP Servlets.


The test also assesses a candidate’s skills in JavaScript arrays, scopes and namespaces, parsing, events and event handlers and functions.


This full stack developer assessment gauges a candidate’s MySQL skills of insert commands, intermediate level functions, joins, regex, and basic level functions.

Database Query

This full-stack assessment includes hands-on coding questions for assessing the database query writing skills of the candidate in MySQL.

Customize This Full Stack Developer Assessment

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 Full Stack Assessment 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

Full Stack Developer 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)

Yes, it is possible. Please write to Mercer | Mettl with the requirements for assistance.

When interviewing full-stack developers, recruiters should look at the candidates’ organizational skills and attentiveness to detail. Interestingly, some specific interview questions will always come in handy. Here is a list of full-stack developer interview questions along with answers that will help you find potential hires in no time:

  • What language do you consider most important for your job?

You should always be on the lookout for answers emphasizing the importance of various languages necessary to the job, not just one. Ideally, consideration should be given to those candidates who understand the pros and cons of using each language in different contexts.

  • Are you currently working on any new coding projects? If you could please describe those?  

Highly skilled programmers are constantly working on exciting projects, whether it be for personal or professional reasons. It would help if you considered hiring proactive professionals who do not need a reason to code; it is inherent in their lifestyle.  

  • What qualities would make someone a better Full Stack Developer than the rest?  

Besides mentioning the core competencies, candidates should also include good organizational skills and meticulousness.

  • How do you keep yourself informed on current developments in the tech industry?

The most sought-after candidates would be willing to learn and practice new languages, read blogs relevant to their skill sets, and attend seminars and conferences to stay abreast of the trends.

  • Have you ever made a mistake while performing your duties? How did you bounce back?  

This question aims to find out if a candidate acknowledges the importance of diligence and understands programming oversight's repercussions. It would be best if you always seek answers where candidates accepted past mistakes, rectified them, and learned a valuable lesson.

Listed below are a few requirements to think of concerning full-stack development:

  • Bachelor's degree in Computer Science  
  • Excellent organizational and project management skills  
  • Skilled in front-end languages such as HTML, CSS, and JavaScript  
  • Ability with JavaScript frameworks such as React, AngularJS, and Amber  
  • Familiarity with server-side languages such as Ruby, Python, PHP, Java, and .NET  
  • Strong verbal communication skills  
  • Detail-oriented  
  • Excellent problem-solving skills  
  • Ability with database technology such as Oracle, MySQL, and MongoDB  

A full-stack programmer is an engineer or web developer specializing in both the front-end and back-end of an application or website. They can handle projects that include building user-oriented websites, working with databases, or even working with clients during the project planning phase.  

Mercer | Mettl's full stack developer aptitude test is used by recruiters and hiring managers to screen and evaluate potential candidates objectively and quickly. Such assessments will help them gauge the candidates' ability in full-stack development. 

We have customized full stack assessment reports in the past based on client requirements. Please write to us with such a request, and we would be glad to work out a solution for you.

Listed below are the skills needed for a full-stack developer:  

  • It is desired that the person has mastered essential Front-end technologies like JavaScript, HTML5, etc. Knowledge of third-party libraries is an added advantage.  
  • A skilled professional is well-versed in at least one server-side programming language, such as Ruby, Python, Java, etc.  
  • Knowledge of DBMS technology solutions is a must-have - MySQL, MongoDB, and Oracle, to name a few. In addition, having an in-depth understanding of caching mechanisms such as Memcached, Redis, and Varnish is helpful.  
  • A thorough understanding of basic prototype design, including UI/UX design elements, is beneficial.  
  • Prior experience in server management and handling Nginx servers, Linux and Apache are some of the most sought-after skills.  
  • Knowledge of Git is essential to keep track of all codebase changes. Therefore, it is expected of a skilled professional to have the ability in the version control system.  
  • A skilled professional works efficiently with web services or APIs like REST and SOAP.

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