Get awesome marketing content related to Hiring & L&D in your inbox each week

Stay up-to-date with the latest marketing, sales, and service tips and news

Recruitment | 6 Min Read

Learn How to Assess and Hire a Front-End Developer in 2020


The internet is a crowded yet indispensable marketplace. With over 1.7 billion websites and 3.5 billion daily searches on Google, it is challenging yet vital to have an online presence that provides you ample visibility. Also, the human mind has an attention span of five seconds, and one needs to create traction in this short period. The degree of exclusivity and the ability to engage with audiences is directly proportional to a website’s volume and revenue. An immaculate front-end development plays a crucial role in achieving the desired results.

What Is Front-end Development and Who Is A Front-end Developer?

Front-end development also called ‘‘client-side development,’’ is the art of creating an interface of the software, an app, a website, or any digital product. “Creating” refers to two elements – design and programming. The former comprises design, content, and just about everything else on the display screen, and the latter includes structure and behavior to put the design to use. The entire process, cumulatively, is termed as front-end development.


Who is a Front-End Developer?

The visual appeal and aesthetics of the layout, the user-friendly design, responsiveness, interactive sections, efficiency, speed, and advanced functionality of the page, are all facets of front-end development. However, creating this requires a plethora of tools and the proficiency of a web developer who can convert data into an interactive interface. Thus, comes a front-end Developer. 

Right from development to delivery, website developers are responsible for developing user-facing code and the architecture of the website to provide an immersive user experience. To execute the desired objectives seamlessly, front-end developers are skilled in three core programming languages: HTML, CSS, and Javascript programming. In addition to fluency in these languages, they are also hands-on with various trending frameworks and libraries.

How To Hire The Best Front-End Developer For Your Organization

Now that you have a focused overview of a front-end developer’s work-regime, as a decision-maker, your next task is to find those who can meet your development needs. You can no longer afford to hire employees based on resumes and instincts in a digitally evolving world. You must have a clear understanding of must-have technical expertise and soft skills. Hence, we’ve created a clear pathway to enhance your hiring ability.

A front-end developer has three levels -

  • Fresher (0-3 years) Skill Set- HTML, CSS & JavaScript with responsive design
  • Intermediate (5-8 years) Skill Set- Programming languages and various JavaScript libraries and frameworks, version control, debugging and testing
  • Experienced (8-10 years and beyond) Skill Set- Programming languages, advanced testing technologies, niche frameworks, package managers and everything relevant that contributes to a great user interface

However, some confer that the talent of front-end developers cannot be corroborated in years. Some junior developers can possess all the skills needed for a project but lack experience. And vice-versa. Hence, evaluating your candidate begins with understanding the must-have requirements of your job profile. Before asking about what a front-end developer needs to know, you must update yourself with the core programming languages, new technologies, frameworks and libraries in the market to understand their knowledge and expertise.

Here’s What You Need to Know About the Tech Stack That’s Gaining Traction in 2020:

Front-end Programming Languages and Technologies of 2020

Front end_HTMLHTML:

The basic foundation of the World Wide Web – HTML has been building Web, mobile, and application pages for the longest time. 

  • Its latest evolution HTML5, however, has been enabling developers to initiate some revolutionary creations with new syntactical features and a more massive stack of next-generation technologies. 
  • From building diverse, scalable, cross-platform, and compelling products to being mobile ready with speedy functioning on low powered devices amidst low connectivity, HTML5 makes the browsing experience more enjoyable, secure, and sustainable. 
  • It supports all major modern browsers, including Google Chrome, Internet Explorer, Firefox, Opera, and Safari, etc. 
  • No wonder Apple, Nike, Ikea, and many other Fortune 500 companies, are using the latest version of this mark-up language for enhanced reach, engagement and conversions results. 

Front end_CSSCSS:

Adding life to your HTML creation is the primary language CSS, which is an integral part of the modern software development process. 

  • Its latest offering CSS3 is pushing your page’s boundaries by giving it the desired appearance and appeal, making it more robust, responsive, and scalable. 
  • Developers are fond of this language as it gives them greater control over the layout, allowing them to make precise customized changes. 
  • Also, CSS3 development ensures digital products are fast-loading, device and search engine-friendly, have higher bandwidth, and are easily accessible, and usable. 
  • It creates the perfect synergy between the manifestation and presentation of your site, with cross-browser compatibility.

Front end_Java Script (JS)Java Script (JS):

This object-oriented programming language is the icing on the cake.

  • It is considered the Web’s default language, for it puts into perspective the outline created by HTML and CSS. 
  • The entire dynamic and interactive behavior of software, like on-screen motion, immersive interaction, and appealing user-engagement, is because of this scripting language. 
  • What makes it phenomenal is its extraordinary power of communicating with the server in the background with no interruption to the user interaction happening in the foreground, such as real-time updates without having to refresh or reload a page. 
  • Major companies, including Microsoft, Netflix, Paypal, and Groupon, use Javascript to communicate and interact with their audiences. 
  • According to individual reports, Javascript is the most in-demand skill in 2020, with over 10400 companies in the world using it.

These programming languages are the backbone of our digital products. However, as technology evolves, so does the process of creating software. Everything is becoming elementary to save on time, money, and resources with the creation of frameworks and libraries. This means one does not have to code from scratch or write codes repeatedly. Design, development, testing, and maintenance to foster a progressive process and to build increased interaction, developer communities and software companies are building frameworks and libraries that address challenges and add versatility when designing complex projects. But, the number of front-end frameworks and libraries is exhaustive. They keep appearing and disappearing, making it all the more indispensable to be updated. 

Here is a list of the top front-end technologies in 2020 that have earned a significant spot with their solid foundation and the ease with which they help create digital products. Their popularity and growth in the last year itself have been impressive and are expected to remain the same in the foreseeable future. 

Popular Front-End Technologies to Know in 2020

React JS (Web + Mobile Development):

A core part of the present and the future of the front-end for any software is JavaScript library React JS

  • Created and developed by Facebook and used by companies such as Instagram, Yahoo and BBC, among others, to build the best experience for their users.
  • Though it is a relatively new player in the market, the library’s blazing speed has made it one of the most favorable JavaScript models for developers and the most critical resource in the JS tech stack.
  • It renders consistent page performance rather than a full-page refresh, offers interactive visual effects, optimizes performance, and increases efficiency. It lends unparalleled ease to the process. 
  • With React JS, businesses, whether small, medium, or large, can build scalable projects irrespective of their complexity.

VueJS (Web + Mobile Development):

Sometimes size doesn’t matter; it’s all about efficiency and speed. 

  • Vue JS is a progressive JavaScript Framework that is useful in building exceptional user interfaces despite having a minimal size (58.8k).  
  • It is an eclectic combination of the advantages offered by AngularJS and ReactJS, powered by HTML, and easily downloadable, beating many other bulky frameworks in the market. 
  • Companies like Buzzfeed, Grammarly, Alibaba, and Xiaomi, among others, leverage this high-performance framework to manage small, encapsulated parts of their applications.
  • Its most unique attribute is that it’s designed from scratch. Therefore, developers can easily integrate it with numerous libraries or existing projects to enhance their digital presence.

Angular JS (Web + Mobile Development):

Developed and maintained by engineers at Google, Angular JS is a popular cutting-edge framework is in a nascent stage. 

  • Yet it is gaining traction owing to its up-to-date features that reduce the complexities of application development. 
  • Faster and modern browser support, mobility driven approach, evolutionary performance, and the ability to meet sophisticated business demands have been solving a multitude of development issues. 
  • Companies like Lego, YouTube, Upwork, and The Guardian have been leveraging the UI framework’s rich features to address the challenges of development.
  • AngularJS’s vast ecosystem and extremely high-performance characteristics promote teamwork and quality assurance by eliminating overlapping of activities. 
  • Developers can quickly achieve great things if they learn to embrace this all-encompassing framework.

Flutter (Mobile-Development):

A notable trend this year is Flutter- one of the fastest-growing open-source frameworks.

  • Flutter is a Software development kit built by Google to create beautiful, natively compiled applications for mobile, web, and desktop. It is made from a single codebase, meaning no cookie cutter. 
  • Initially released for Android developers, it now has an iOs version to revolutionize the mobile world.
  • With a straight forward setup, Flutter ensures full customization, incredibly fast rendering, maximum native performance, smooth navigation, and expressive and flexible designs. It is also amongst the first to offer ‘‘sub-second’’ reload time experience to users without losing hardware for iOS and Android. 
  • Companies like BMW, The New York Times, and Emaar, among others, have been creating mobile-first interactions and rich visualizations on their apps to delight customers in record time.

Front end_Bootstrap4Bootstrap4 (Mobile-Development):

Bootstrap can be your go-to tool for developing a mobile-first project. 

  • Developed by Twitter, Bootstrap is one of the trendiest and most accessible HTML, CSS, and JavaScript frameworks that render intriguing, intuitive, and powerful creations development. It saves several hours of coding.  
  • Fascinating features about this framework are its responsive layout and 12-column grid system. This mechanism allows digital products to adjust seamlessly over any screen size without hampering the resolution.  
  • Lightweight, massive community support, simple integration, customizable page options, and cross-browser compatibility, make this technology developer-friendly.  
  • Companies such as Spotify, Twitter, Intel and Walmart are augmenting their virtual presence by using Bootstrap.

Front end_SvelteSvelte 3 ( WEB APPS):

A radical lightweight new approach to building user interfaces with this JS library.

  • It runs at build time to reduce unnecessary workload. That means, Svelte converts components into codes that surgically updates the DOM when the state of your app changes. 
  • Excellent performance and user experience and ambitious creations are some fascinating characteristics of this language.     
  • Companies like Noppo, Cloudless and Ship Shape are utilizing the advantages of this library to develop their projects in record time.

Front end_TypeScript 3.8-TypeScript 3.8:

It is a typed superset or subset of JavaScript that enables the development of large-scale applications. 

  • TypeScript supports tools for any browser and any host on any OS. It is currently being developed on GitHub. 
  • 2444 companies reportedly use TypeScript in their tech stacks, including Slack, N26, and Revolut.





The images mentioned above are self-explanatory. They are a true reflection of the importance of new frameworks dominating the market. Image 1 represents how, over the last year, AngularJS has gained global prominence in the tech world with its advantages. 

Conversely, Image2 depicts an exciting fact that nothing is ever constant. No one stack of technology can continually rule the market. So how do developers navigate amidst such varying leads and information? How can they keep themselves relevant without having to succumb to the rapidly changing landscape?

The Roadmap For Front-end Developers

Front end_Flow

You need to look at the bigger picture and decide on your focus area if you are a front-end developer or aspiring to become one. Typically, a company requires you to possess a basic knowledge of the language with some design, UI skills, a strong foundation, and a relevant degree. This places you in the beginners or fresher category. But with an intensified competition, you must update and move into a more specific category. 

With a focused approach, keep a check on the tech stack to stay relevant, which involves understanding not just the languages, strategy and techniques but also their libraries and frameworks for a deeper skillset. 

Additionally, work on your soft skills, because ‘‘social distancing’’ or ‘‘solitary refinement’’ will be outdated soon.

How Can Mercer | Mettl Helps Hire Better

We are facing compelling questions from hiring managers, such as from where and how to hire an ideal front-end developer? How do you test a front-end developer? What does a front-end developer need to know?  These seem to be pressing concerns for many, as hiring an ideal talent is critical for an organization’s growth. 

The answer is simple: Mercer | Mettl’s package of Assessments + Simulators help solve hiring bottlenecks efficiently by creating various front-end developer assessment tests. We simplify your technical hiring by lining up an aptitude test for your web developer, giving a coding challenge to the front-end developer, and creating a web designing coding test to build a specialized javascript online coding test. We also have a diversity of question types, including MCQs, case study simulators, coding simulators, etc. With a data-driven evaluation methodology, intuitive user interface, and customized reports, recruit the best front-end developer, whether through campus drives or resumes, within stipulated timelines.


Ready to Use Pre-Build Tests

The quality and coverage of our technical questions are unmatched as we cover a vast array of roles and skills. A rich repository of 100,000+ Technical Questions for 300+ Skills helps test a coder’s competency at every level comprehensively. You can choose from a set of readily-available standardized tests such as C developer test, C++ developer assessment, HTML, CSS and JavaScript test, JavaScript Developer test, PHP Developer, and more from our vast library of Programming Assessments. With a ready-to-use pre-build test set, assessing a coder’s skill instantaneously helps save precious time.

Customization at Each Level

In case you are looking for something specific, we get our team of experts to build a customized assessment that you can’t find anywhere. These tailor-made pre-hiring assessments are an ideal filtration process to explore candidates’ desired skill sets without bias, not only for IQ skills but for coding skills as well. Tailored solutions matching organizational objectives with features and applications are offered at every level to assist you in hiring an ideal front-end developer.

An Extensive List of Simulators

Mercer | Mettl offers an extensive list of simulators to evaluate a coder’s hands-on experience and capability for the desired role. They enable hirers to give a real project to a coder from a specific domain of software development and evaluate their experience and capability to solve a problem in any desired programming language. These real-world challenges give a true sense of a candidate’s project building capabilities.

This comprehensive simulator environment is available for 

  • Codelysis: Backend Simulator

Evaluates candidates’ experience and capability to solve a problem in any desired programming language

  • DBLysis: Database Simulator

Evaluates candidates’ capability to write correct and optimized SQL queries

  • FES: Frontend Simulator

Evaluates candidates’ capability to implement web designs and solve problems using frontend technologies

  • R: Data Science Simulator

Evaluates candidates’ analytical & statistical acumen for data analytics roles

  • Code Project: Backend+DB Simulator

Evaluates candidates’ capability to develop console-based applications

  • MEAN Simulator

Evaluates candidates’ capability to develop frontend, backend, and database applications using JavaScript.

These simulators are highly-scalable, auto-graded, and designed to test the coding skills of students and working professionals. Our simulators support all popular technologies and enable creating language-agnostic questions. A complete auto-graded evaluation report provides a detailed code journey with a plagiarism detector.

Unique Role-Based Coding Platform

If you have an advanced Requirement to assess candidates in a project-based coding environment, Mercer | Mettl is introducing a first-of-its-kind all-in-one coding assessment platform to assess candidates on project-based, real-world tasks. This highly sophisticated and customizable tool with real-time, insightful reports and auto-evaluation of the code provides best-in-class integrated development environments (IDE) and programming tools which helps evaluate their proficiency level.  It caters to all major programming roles and supports the most diverse set of technologies. Major roles include:

  • Frontend Development
  • Backend Development
  • Full Stack Development
  • Data Science
  • DevOps
  • Quality Assurance

The Future Of Front-end Development

The ‘front-end’ is poised for change. The tools, libraries, frameworks, operating systems, and algorithms are constantly up for an upgrade and advancement with emerging new technologies. Hence, it is all the more vital to adapt to the changes and remain relevant. Learning or experimentation are ongoing processes.   

It is critical to ruminate on how the online world has changed, and how alarmingly the number of mobile users is increasing. Industries, globally, are beginning to invest heavily in creating future-ready products based on continuous user feedback and experience. Customers, on the other hand, dependent on smart-phones and technology, are vying for real-time gratification, instantaneous results, and quick reactions. All this teaches us to have a more mobile-first approach.

But what about tomorrow?
Aren’t we already being powered by AI?
Haven’t blockchain, cloud computing and Internet of Things (IoT) already paved their way into the market?

All this and much more is changing the future of front-end and demand from the developers. Indeed, there couldn’t be a better time to become a coder and put your dynamic programmatic rigor to use. However, it is critical to boost your knowledge and stay updated. Many of you might wonder – is front-end development a viable career? Companies need you now, more than ever. After all, you know precisely how to make an impact online, leveraging the best framework possible.

Originally published April 27 2020, Updated August 9 2021

Written by

Shirisha has been helping countless brands gain traction with her content. Her deep understanding of the education sector and sound knowledge of technical skills have helped her structure the most creative solutions for key stakeholders. Shirisha has also ghosted pieces for several industry honcho’s successfully published both online and offline. When she's not keeping up with the world, you're sure to find her catching up on bollywood stories or gramming for fun.

About This Topic

Hiring a coder requires HRs to go beyond conventional hiring practices and assess the candidate on both knowledge and hands-on skills. A holistic suite of assessments and simulators, used in conjunction, can simplify the technical hiring process and better evaluate programmers and developers.

Related Products

Mercer | Mettl's Programming Skills Test

Comprehensive assessments for the latest and greatest in the tech world

Know More

Mercer Mettl’s Coding Assessments And Simulators

Find the Best Developers Using Our Coding Assessments & Simulator Tools

Know More

Mercer | Mettl's Role-based Coding Projects Platform

A one-stop-shop to hire programmers for all major roles and technologies

Know More

Related posts

Would you like to comment?


Thanks for submitting the comment. We’ll post the comment once its verified.

Get awesome marketing content related to Hiring & L&D in your inbox each week

Stay up-to-date with the latest marketing, sales, and service tips and news