Javascript Developer job description

What does a Javascript Developer do?

A JavaScript Developer is responsible for implementing the front-end logic that defines the behavior of the visual elements of a web application. They also work on the server-side, often using Node.js, to develop business logic and backend functionalities.

JavaScript Developers collaborate with other team members such as web designers and backend developers to ensure web applications offer seamless, high-quality user experiences.

Javascript Developer duties and responsibilities

Typical tasks in a Javascript Developer job:

• Develop new user-facing features using JavaScript and frameworks such as React, Angular, or Vue.js
• Build reusable code and libraries for future use
• Ensure the technical feasibility of UI/UX designs
• Optimize applications for maximum speed and scalability
• Assure that all user input is validated before submitting to back-end services
• Collaborate with other team members and stakeholders
• Maintain and improve website
• Implement data security and protection within the applications

Qualifications and skills

Education & qualifications

• Bachelor's degree in Computer Science or related field
• Proficient understanding of web markup, including HTML5 and CSS3
• Strong understanding of server-side CSS pre-processing platforms, such as LESS and SASS
• Good understanding of advanced JavaScript libraries and frameworks such as AngularJS, KnockoutJS, BackboneJS, ReactJS, or DurandalJS
• Proficient understanding of client-side scripting and JavaScript frameworks, including jQuery
• Familiarity with tools such as as Gimp or Photoshop is a plus
• Proficient understanding of cross-browser compatibility issues and ways to work around them

Skills & requirements

• Good understanding of asynchronous request handling, partial page updates, and AJAX
• Basic knowledge of image authoring tools, to be able to crop, resize, or perform small adjustments on an image. Familiarity with tools such as Photoshop is a plus
• Proficient understanding of code versioning tools, such as Git
• Good understanding of SEO principles and ensuring that application will adhere to them
• Excellent problem solving skills
• Strong team player who can collaborate effectively with different stakeholders

Javascript Developer salary 2026

The average salary for a Javascript Developer in the U.S. is about $86,725 per year. Pay depends on experience, employer, industry and region:

• Entry level0-2 years $65,044
• Mid level3-5 years $78,053
• Experienced6-10 years $86,725
• Senior11+ years $95,398
• Top earners20+ years $108,406

Based on public data from the U.S. Bureau of Labor Statistics and Payscale. Career-level figures are estimates derived from the national average.

Javascript Developer career path

JavaScript Developers have the opportunity to advance to senior developer roles, lead engineering projects, or transition into full-stack development. With experience, they might also specialize in a specific JavaScript framework or library. Career advancements can lead to managerial positions such as IT project managers or product managers.

Continuous learning and adapting to new technologies is crucial, as the field of web development is constantly evolving.

Work environment

JavaScript Developers typically work in a fast-paced office environment. They may work as part of a development team in tech companies, startups, or as contractors. Remote work is also common in this field, providing flexibility and the opportunity to work with companies around the world.

The work often involves tight deadlines and collaboration with clients and other developers, requiring effective communication skills and the ability to work well under pressure.