How to Become a JavaScript Developer

JavaScript Developer

A Javascript developer creates and implements codes using the Javascript language. They work with websites and apps that use Javascript to create some of the on-page aspects. A Javascript developer oversees all stages of Javascript usage in a particular project.

Javascript is a coding language that creates moving and dynamic features of a webpage or app. It can be used for a variety of things, including moving images, auto-fill forms, or slideshows of images. Popular real-world examples of Javascript are the Netflix design – including its movie previews and its dynamic scrolling functions – the Uber application, and the interface of the popular game Candy Crush.

Created in 1995 by Brendan Eich, Javascript was intended to make the internet a more application-focused platform. However, it was not used widely until the 2000s. Nowadays, it is used across the internet and other applications for many different purposes, leaving plenty of work opportunities open for Javascript developers.

A Javascript developer is an expert in this coding language and uses this expertise to develop different websites and apps.

Javascript developers’ duties include:

  • Looking at pre-existing webpages and applications to see how a redesign could benefit from Javascript.
  • Implementing features of Javascript into new webpages and apps to enhance user experience.
  • Consulting with other professionals – coders, UI or UX designers, or business managers – and discussing opportunities for using Javascript in more products.
  • Writing the Javascript code that converts ideas into machine-readable language.
  • Testing Javascript apps to look for bugs or faults in the design.
  • Keeping updated on Javascript developments.

Most people who want to become a Javascript developer begin their education with a degree in computing, maths or another tech-related subject. Throughout their tertiary education they should develop a particular interest in Javascript.

Plenty of Javascript developing knowledge can be self-taught. It is a step up from learning HTML and CSS, but it is a relatively easy coding language to learn. There are plenty of online Javascript developer courses available. After enlisting on one of these, a candidate can go through the entire subject – from variables and conditionals to much more advanced topics. It is also beneficial to obtain a Javascript developer certification.

In a Javascript developer interview, an applicant will be quizzed for their general programming knowledge. They may be asked to do a task like to build a click counter on a webpage; this is a simple Javascript task that will prove that the candidate knows how to code.

Being a Javascript developer requires patience, as the process isn’t always linear, and teamwork, as Javascript is often just a small part of a web page or app. The ideal candidate will also need problem solving abilities, creativity and strong analytical skills.

Javascript developers may find themselves working irregular hours on certain projects, outside 9-5 or even at weekends. That being said, the pay for specialists is high and compensates for unsocial hours.

What degree is most commonly held by a JavaScript Developer?


  • Bahelor of Information Technology
  • Bachelor of Computer Engineering
  • Bachelor of Computer Science
  • BCA (Bachelor of Computer Applications)
  • Bachelor of Information Technology and Network Security
  • Bachelor of Telecommunications Engineering
  • Bachelor of Electrical, Electronics and Communications Engineering
  • Bachelor of Software Engineering

Career Transportability across Countries


Transportability: High
Javascript developers are in demand all over the globe, because new technology needing the code is being developed every day and Javascript developers’ skills are so niched. People in this role may find it easy to secure jobs in other countries; but as teamwork is an important part of a Javascript developer’s job, they will need to speak the business's main language. It is advisable to get solid experience in Javascript development before looking for roles overseas.

What is the Salary of a JavaScript Developer?

ExperienceEducationAverage salary | year
AU$UK£US$
JavaScript Developer1-3 yrs€40,000£42,500$133,000
JavaScript Developer3-5 yrs€65,000£50,000$156,500
Development Manager5-10 yrs€75,000£62,500$195,625

What skills are needed to become a JavaScript Developer?


  • JavaScript
  • Node.js
  • HTML
  • jQuery
  • Web Development
  • CSS
  • React.js
  • HTML5
  • Git
  • Cascading Style Sheets (CSS)
  • MySQL
  • SQL
  • PHP
  • MongoDB
  • Java
  • AngularJS
  • Agile Methodologies
  • Software Development
  • SASS
  • Web Applications
  • HTML 5
  • WordPress
  • Web Design
  • Microsoft Office
  • XML

JavaScript Developer Courses

Most candidates who are wondering how to become a Javascript developer begin with a general programming vocation and niche into Javascript. This means that taking supplementary courses is advisable to help build upon their specialism. Our introduction to web development course is a great place to begin.
  • Learn to Code for the Web

    Ever wondered whats behind your favourite websites and apps Get to grips with the basics of coding in HTML CSS and JavaScript

  • Create Accessible Interfaces

    Learn how to program inclusive creative interfaces for disabled users while meeting legal accessibility requirements

  • Introduction to Web Development

    Discover web development and learn to build your own interactive websites using HTML CSS and JavaScript Supported by Google

  • Introduction to UX and Accessible Design

    Explore the world of user interfaces and accessible design and discover how you can start a career as a UX designer

  • Functional Programming in Haskell: Supercharge Your Coding

    Get an introduction to Haskell the increasingly popular functional programming language with this University of Glasgow course

  • Business Problems and Software Solutions

    Discover how to overcome realworld business challenges with software solutions

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