Find the Best JavaScript Jobs

Professionals on Upwork rate clients
Rating is 4.9 out of 5.
4.9/5
On average from 2M+ reviews

Check out a sample of the 3,404 JavaScript jobs posted on Upwork

React/Supabase Developer Needed for SAAS Web Application

New
Fixed-price ‐ Posted 20 hours ago
$100
Fixed-price
Expert
Experience level

We are looking for an experienced Full-Stack Developer to continue building out CrewUp, a web application marketplace platform for gene…

JavaScriptAPINode.jsHTML5HTMLCSSJavaScript Jobs
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Integrate RingCentral with Acumatica

New
Hourly ‐ Posted 20 hours ago
Less than 30 hrs/week
Hours needed
Less than 1 month
Duration
Intermediate
Experience level

I need to pass a number from RingCentral to Acumatica 2025R1. I have a PRD to assist with scoping. This can either be done API-API or C…

JavaScriptHTML5JavaScript JobsPHP
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30+ hrs/week
Hours needed
3 to 6 months
Duration
Expert
Experience level

We're looking for an experienced Full Stack Developer to help build a high-performance trading platform focused on institutional market…

JavaScriptOrder ProcessingCanvasAlgorithm DevelopmentData AnalysisAmazon Web ServicesNode.jsTypeScript
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Senior Software Developer

New
Hourly ‐ Posted 20 hours ago
30+ hrs/week
Hours needed
More than 6 months
Duration
Expert
Experience level

Build a web-based SaaS platform, including customer-facing pages and an internal application dashboard. Develop and integrate APIs with…

JavaScriptNode.jsHTMLAPIJavaScript Jobs
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Senior React.js Performance Optimization Engineer

New
Hourly ‐ Posted 20 hours ago
Less than 30 hrs/week
Hours needed
Less than 1 month
Duration
Expert
Experience level

Senior React.js Performance Engineer – Dashboard Optimization & Code Review About Us We are building Rastaa AI, an AI-powered last-mi…

JavaScriptCSSHTMLNode.jsJavaScript Jobs
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AI-First Full-Stack Developer for EdTech

New
Hourly ‐ Posted 20 hours ago
Less than 30 hrs/week
Hours needed
More than 6 months
Duration
Intermediate
Experience level

Join our team to build an AI-native platform for an overseas education company. We're seeking a developer with a strong background in A…

JavaScriptjQueryHTML5PHPJavaScript Jobs
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Ai developer for bug fixes - LLM , MCP

New
Fixed-price ‐ Posted 23 hours ago
$5
Fixed-price
Entry
Experience level

Need help fixing bugs in your AI-generated or existing application? I specialize in identifying and resolving issues quickly in web app…

JavaScriptArtificial IntelligencePython
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$400
Fixed-price
Expert
Experience level

Full-Stack Developer Needed to Build a SCORM 1.2 Runtime for a React/Node.js LMS Project Overview We are building our own corporate le…

JavaScriptArticulateAPI IntegrationNode.js
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Full Stack Developer for Web3 Game Platform

New
Hourly ‐ Posted 20 hours ago
Less than 30 hrs/week
Hours needed
1 to 3 months
Duration
Intermediate
Experience level

We are seeking a skilled full stack developer with experience in Solidity to enhance our web3 game platform. The ideal candidate will h…

JavaScriptBlockchainSolidity
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Less than 30 hrs/week
Hours needed
More than 6 months
Duration
Expert
Experience level

Description We're a real estate team in Tampa Bay. We want a private web dashboard that creates our marketing content for us — on-bran…

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JavaScript Developers on Upwork
can earn $15–$35/hr.
Learn more below about how you can earn a career on the world’s work marketplace.
JavaScript Developer average prices bell curve

$15$35

Median hourly rates (USD)

How to Become a JavaScript Developer

If you want to work in software development and become a web developer, then you may wonder if it’s a good idea to learn JavaScript. JavaScript is the most popular programming language in the world. It’s also a beginner-friendly language that already comes installed on every modern web browser, so you don’t need to set up anything.

Want to become a JavaScript developer? From the education level and certifications to skills, responsibilities, and hourly rates, we discuss it all so you can make the best decision for your future.

What does a JavaScript developer do?

JavaScript developers are technical professionals who use the JavaScript programming language to develop and implement websites while connecting with the services running on the back end. They may find themselves juggling different programming duties depending on the project requirements.

The main focus of JavaScript developers, however, is usually the user experience and interface of web pages, creating modern and interactive layouts from designs along with other front-end developers, and ensuring the technical feasibility of UI/UX designs.

What skills do I need to become a Javascript Developer?

The following qualities and skills are needed to excel in this career:

  • Strong knowledge and experience with web apps and programming languages, such as Java, HTML, Python, CSS, JavaScript, APIs, as well as JavaScript frameworks, such as jQuery
  • Knowledge and experience in JavaScript libraries and frameworks, like Angular 7+, React, and VUE
  • Experience in software development projects and coordinating with a different development team
  • Experience building cross-browser user interfaces and client-side implementation of RESTful API
  • Basic knowledge of usability, user experience (UX) design, modern web development standards, and search engine optimization (SEO) best practices
  • Experience with back-end development using Node.js
  • Familiarity with code versioning tools, such as GitHub
  • Familiarity with Agile methodologies
  • Understanding of fundamental design principles behind a scalable application
  • Keeping skills sharp with continual learning
  • An inquisitive mind and demonstrable examples of implementing proactive solutions
  • Excellent communication and interpersonal skills, including when working with remote team members and with clients

What are the core JavaScript developer job responsibilities?

JavaScript development is one of the major IT job profiles that professionals can explore. Key responsibilities of a JavaScript developer include:

Some of the main Magento developer job responsibilities are:

  • Optimize components for maximum performance across a vast array of web-capable devices and browsers
  • Manage the software development lifecycle, and fix issues like syntax and logical errors
  • Develop and direct software system validation and testing methods
  • Work closely with stakeholders, clients, and cross-functional departments to communicate project status and proposals
  • Continuously monitor application reliability, debug JavaScript code and web applications, and optimize performance
  • Build software applications following coding standards, as well as build appropriate unit tests, integration tests, and deployment scripts
  • Deploy projects and support dev-ops process to deploy projects in different environments
  • Create database schemas that represent and support business processes

Should I get a JavaScript developer degree or certification?

Many employers prefer prospective JavaScript developers to have a bachelor's degree in a technical field. But there are job listings that do not require a degree, and some positions just a certification from an online course or bootcamp.

That being said, JavaScript developers can benefit from several types of education or certifications to help position themselves more prominently on Upwork:

  • A bachelor's or master's degree in computer science, web development, computer programming, or equivalent
  • Certifications like Learn JavaScript by W3Schools, CIW JavaScript Specialist course, and JavaScript certification by International JavaScript Institute
  • Online YouTube and LinkedIn tutorials for programmers, such as Learn JavaScript (full course for beginners), JavaScript Programming, and JavaScript Code Challenges

Getting your freelance career rolling as a JavaScript developer can be difficult. But, with these additional resources, you can jumpstart your freelance career on the Upwork job market, and you can even land your first job opportunity in no time:

Upwork is not affiliated with and does not sponsor or endorse any of the tools or services discussed in this section. These tools and services are provided only as potential options, and each reader and company should take the time needed to adequately analyse and determine the tools or services that would best fit their specific needs and situation.

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