What does a javascript developer do?

While their primary role is to ensure the website is visually appealing and easy to navigate, many web developers are also responsible for the website’s performance and capacity. In 2019, 72% of companies looked for JavaScript developers, proving just how sought after and valuable this skill is. It’s also the language that employers test for the most, so it’s a great tool for any developer to add to their repertoire. Even though a JavaScript developer typically works on the front-end, the programming language itself is not limited to front-end use only. In case you are looking for a back-end JavaScript developer, please refer to our Node.js Developer Job Description Template. Finally, we offer competitive pricing for our JavaScript development services.

what does a javascript developer do

JavaScript engines are now embedded in a variety of other software systems, both for server-side website deployments and non-browser applications. It is important to continually learn and stay up-to-date with the latest tools and technologies to remain competitive in this field. With dedication and hard work, a career as a JavaScript Developer can be highly rewarding and lead to a promising future in technology. As technology advances and new trends emerge, JavaScript will play a growing role in influencing the future of software development. A JavaScript developer’s average income varies depending on various criteria, including location, experience, and company size.

JavaScript running order

You don’t have to transform the code into a different form before the browser runs it. The code is received in its programmer-friendly text form and processed directly from that. Understandably, not all developers love JS and prefer to use other languages. Actually, there are many JavaScript alternatives, and that makes how to hire a javascript developer it quite difficult to choose. In a dedicated article, you can learn to build your first Hello World project in WebAssembly using fast and memory-safe Rust. Developers can code in C, C++, Go, and Rust (among others) and then compile their source into Wasm binaries to run them alongside JS in their applications.

what does a javascript developer do

Justin firmly believes that collaboration across all facets of a business, from development to marketing to sales, is required to succeed in this endeavor. JavaScript is a programming language that is most commonly used in web browsers to create interactive web pages. Java is a more general-purpose programming language that can be used for a wide variety of purposes, including web development. Both kinds of frameworks have many of the same features that help developers create a user-friendly experience. However, a back-end developer needs more complex syntax, structure, and technical requirements, while a front-end developer will deal mostly with CSS, HTML, and JavaScript building blocks. JavaScript is a high-level, often just-in-time compiled language that conforms to the ECMAScript standard.[11] It has dynamic typing, prototype-based object-orientation, and first-class functions.

Learn the basics

A JavaScript developer is responsible for implementing the front-end logic that defines the behavior of the visual elements of a web application. A JavaScript developer is also responsible for connecting this with the services that reside on the back-end. They are usually supported by back-end web developers, who are responsible for server-side application logic.

  • Generally, JavaScript libraries are collections of pre-written code snippets that can be used and reused to perform common JavaScript functions.
  • Ricardo has been coding for over 20 years, having worked on projects in more than ten programming languages.
  • This involves things like putting new JavaScript features to the test and fixing any bugs that arise.
  • With continuous learning, staying updated with emerging technologies, and building a strong portfolio, JavaScript developers can find rewarding and fulfilling career paths.
  • JavaScript developers have a strong understanding of JavaScript as well as experience in using web technologies such as HTML and CSS.
  • JavaScript developers are responsible for maintaining the quality and function of their built software.
  • In addition, they are also experienced in working with a variety of JS frameworks, libraries, and tools.

As a web developer, your portfolio is often one of the most important parts of your resume. This collection of projects shows potential employers what you’re capable of creating. If you’re including code, be sure https://www.globalcloudteam.com/ to annotate it to show your thought process. For example, you can take a course to learn programming languages like HTML, JavaScript, or CSS, and then put what you learn into practice on your own website.


The more a coding language is popular, the more likely it is to be criticized. Still, JavaScript gets an incredible amount of hate in the software community. Actually, it is a fun and flexible programming language that you can use on both the front-end and the back-end. For example, the V8 engine is a core component of the Node.js and Deno runtime systems.

what does a javascript developer do

But that’s not all –– it’s also extremely versatile in terms of what you can do. Javascript allows developers to utilize a slew of different libraries, frameworks, and plugins, like Angular or React, making coding more efficient, dynamic, and ultimately widening their capabilities. We are looking for a JavaScript Developer who is motivated to combine the art of design with the art of programming. Responsibilities will include implementing visual elements and their behaviors with user interactions. You will work with both front-end and back-end web developers to build all client-side logic. You will also be bridging the gap between the visual elements and the server-side infrastructure, taking an active role on both sides, and defining how the application looks and functions.

What is a JavaScript Developer?

They may work in a traditional office setting or in a more casual, collaborative environment, such as a startup or tech company. Some JavaScript developers work remotely, which allows them to work from home or from any location with an internet connection. It is the third layer of the layer cake of standard web technologies, two of which (HTML and CSS) we have covered in much more detail in other parts of the Learning Area. JavaScript is an interpreted programming language that conforms to the ECMAScript specification. It has curly-bracket syntax, dynamic typing, prototype-based object-orientation, and first-class functions.

From there, aspiring JavaScript engineers can take a number of professional routes, including the ones listed below. They use APIs to connect front-end web applications to back-end systems, such as databases and cloud services, and to retrieve and send data. The median annual salary for web developers in the US is $78,300, according to the Bureau of Labor Statistics (BLS) [1]. However, web developers in the US can earn up to $249,297 according to Glassdoor salary insights [2]. How much you earn will depend on many factors, including where you work, what industry you work in, and how much experience you have. Since JavaScript is a relatively new language, it’s constantly being updated.

JavaScript Variables

JavaScript is also utilised in the development of virtual and augmented reality. Creating immersive, interactive experiences for gaming, education, and other uses falls under this category. To stay organised and plan your work successfully, use project management software such as Trello or Asana. You build modular components that may be reused throughout the application, minimising the amount of redundant code and making maintenance easier. This website is using a security service to protect itself from online attacks.

The work of a JavaScript developer can be fast-paced and demanding, with tight deadlines and changing priorities. However, the work can also be highly rewarding, as developers have the opportunity to create innovative web applications and contribute to the growth and success of the organizations they work for. JavaScript does the heavy lifting by telling computer programs like web browsers or web applications to do something specific. This is where dynamic features come in, for instance, to “tell” an image to animate itself, a photo to move through a slideshow, etc. This means it is used to automate processes that users would otherwise need to execute on their own, and step-by-step.

Common Tools and Technologies Used by JavaScript Developers

As of 2023, 98.7% of websites use JavaScript on the client side for webpage behavior,[10] often incorporating third-party libraries. All major web browsers have a dedicated JavaScript engine to execute the code on users’ devices. A career as a JavaScript developer can lead to various roles such as front-end developer, full-stack developer, UI/UX developer, or even technical lead positions. With continuous learning, staying updated with emerging technologies, and building a strong portfolio, JavaScript developers can find rewarding and fulfilling career paths.

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