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Full-stack Developer Assessment for identifying and hiring top developers

The Full-stack Developer Test by Mercer | Mettl can be crucial in hiring decisions for job roles that require skills in building end-to-end functional web applications. The Full-stack Developer Coding Test is a comprehensive evaluation designed to objectively assess candidates' front-end (client-side) and back-end (server-side) web development skills.

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Inside this Full-stack Developer Assessment

A Full-stack Developer Test is a valuable screening tool for objectively evaluating the capabilities of candidates in front-end and back-end development by assessing their coding skills and gauging their approach to problem-solving in full-stack development. The Full-stack Developer Coding Test helps recruiters identify top candidates with the acumen and technical skills required to succeed in specific job roles. 

The Full-stack Developer Assessment by Mercer | Mettl is a unified assessment designed by subject matter experts to evaluate candidates' programming knowledge and applied coding skills. The test helps recruiters assess the proficiency of candidates in front-end and back-end languages. Mercer | Mettl’s Full-stack Developer Coding Test is a scientifically validated assessment that measures candidates’ understanding of fundamental concepts, programming knowledge, and their applied skills in core Java, MySQL, and Java Full-stack. The Full-stack Developer Test has 18 multiple-choice questions that evaluate the abilities of candidates in creating and consuming APIs, working with MySQL and SQL databases, and writing unit tests for all tiers of the application, as well as three coding problems that candidates will need to solve on front-end and back-end simulators.


The demand for full-stack data developers has risen exponentially in recent years. One of the biggest reasons behind this rise in demand is the ability of full-stack developers to use various technological tools effectively, which enables them to handle challenging computer projects efficiently. They have practical knowledge of all critical languages, system engineering concepts, and methodologies crucial in software development. In addition, full-stack developers are also well-versed in software development approaches, complete stack concepts, using tools needed for developing functioning mobile applications and websites, using various frameworks like Node.js, Django, and Angular.js, and they also know multiple web languages like Python, Ruby, JavaScript, HTML, and CSS. Full-stack developers are multifaceted professionals with ample skills for managing databases, servers, system engineering, architecting, and client communications. 

It can get challenging for recruiters to assess all these technical skills and competencies, making the recruitment process even more complex and time-consuming. A Full-stack Developer Test is vital here, as it can assist recruiters and hiring managers in successfully identifying and hiring top candidates that suit the specific requirements of an open position. The Full-stack Developer Coding Test by Mercer | Mettl holistically evaluates candidates' skills across the entire web stack, including testing them on front-end technologies, back-end programming languages, and structured query language for database assessment. Mercer | Mettl’s Full-stack Developer Assessment helps recruiters identify job-ready candidates with the skills required for specific job roles.


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



Under this section, candidates are evaluated on their skills in JavaScript arrays, parsing, events, event handlers, scopes and namespaces, and functions.

Front-end simulator

This section of the Full-stack Developer Coding Test by Mercer | Mettl covers hands-on coding questions to evaluate candidates' front-end web development skills on a front-end simulator.

Hands-on programming

This part of the test assesses candidates' coding skills, hands-on experience, and capability to code in required languages by giving them real-world problems on a coding simulator.


This section of the Full-stack Developer Assessment is designed to assess the core Java skills of candidates in Java-JSP directives, Java-JSP servlets, and Java-JSP actions.


This section assesses candidates' MySQL skills in intermediate-level functions, insert commands, joins, regex, and other basic-level parts.

Database query

The Full-stack Developer Coding Test also covers hands-on coding questions that assess candidates' skills in writing database queries 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 four 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 for assistance.

Recruiters should curate interview questions that offer them insights into hard skills, behavioural intelligence, and soft skills. Besides coding and programming language proficiency, recruiters should assess candidates' organizational skills, attention to detail, diligence, willingness to learn, and knowledge of the latest tech developments.

Full-stack developers should have a bachelor’s degree in computer science. Apart from this, they should also possess excellent project management and organizational skills, abilities in using JavaScript frameworks, and a strong understanding of and competencies in front-end and back-end languages. Strong verbal skills, excellent problem-solving skills, and meticulousness in detail-oriented tasks are essential skills a full-stack developer should possess.

Full-stack programmers are engineers or web developers specializing in front-end and back-end development of mobile applications or websites. Full-stack developers can also handle projects that include building user-oriented websites, database management, and communicating with clients during the project's planning phase.

The Full-stack Developer Test by Mercer | Mettl can be used by recruiters to screen potential candidates objectively and gauge the abilities of candidates in full-stack development. 

Yes. In selective cases, the Full-stack Developer Coding Test reports can be customized based on client requirements.

Candidates should have mastered front-end technologies, like HTML5 and JavaScript, and they should be adept in one of the back-end programming languages, like Java, Ruby, or Python. The skills of a full-stack developer include knowledge of DBMS technology solutions and Git and a thorough understanding of caching mechanisms and prototype design. They should also be able to work efficiently with web services and APIs and have server management experience.

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