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Comprehensive JavaScript Developer Job Description, Duties, Responsibilities, Requirements, and Qualifications

Comprehensive JavaScript Developer Job Description, Duties, Responsibilities, Requirements, and Qualifications
September 27, 2025

Gain insight into the essential qualifications, important duties, key responsibilities, and vital skills that form a well-rounded JavaScript Developer job description.

What does a JavaScript Developer do?

A JavaScript developer is someone who uses the Java programming language to create applications and software. They work on websites, making the front-end part of the website, and they also analyze the code and make it better for users.

Job Description

We are looking for a passionate JavaScript developer who can do everything related to the front-end of a website, from designing complex applications to checking the code. They should also make sure the website looks good and is easy for people to use. The JavaScript developer will also create designs for API and make sure everything works well together.

To be a good JavaScript developer, you need to know how to write code for websites and have expert knowledge of JavaScript. You should also be able to work quickly and follow complicated design instructions.

Job Duties and Responsibilities

  • Create code that can be used for a long time
  • Make sure the design is possible to use
  • Make the front-end of the website faster
  • Change complicated application designs and instructions
  • Analyze the code, requirements, and risks of the system
  • Work with other front-end and back-end developers

Requirements and Qualifications

  • Have a degree in computer science, engineering, MIS, or a related field
  • Know a lot about JavaScript
  • Have experience with JavaScript libraries like ExtJS, Backbone JS, and Angular JS
  • Be good at making websites work well in browsers
  • Know how to use front-end tools like Grunt and Gulp JS
  • Understand web markup, like HTML5

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