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Javascript Developer Jobs in Illinois (NOW HIRING)

galaxyitechnologies

Javascript Developer

Chicago, IL

Javascript Developer CHICAGO IL 24-MONTHS+, OR CTH The position is to maintain and enhance a NodeJS application. The applications has a web frontend and a Web API. The candidate must have at least 4 ...

galaxyitechnologies

Javascript Developer

Chicago, IL · On-site

Javascript Developer CHICAGO IL 24-MONTHS+, OR CTH The position is to maintain and enhance a NodeJS application. The applications has a web frontend and a Web API. The candidate must have at least 4 ...

Paradigminfotech

JavaScript engineer

Bloomington, IL · On-site

JavaScript Developer opening in Bloomington, IL for a large national account. The client is seeking a JavaScript Developer with experience on both Client and Server JavaScript, not just a Java ...

Jobsbridge

AngularJS-JavaScript Developer

Chicago, IL

$56.50 - $69/hr

Be it core Java, full-stack Java, Web/UI designers, Big Data or Cloud or Mobility developers/architects, we have them all. AngularJS & JavaScript Apache Cordova / PhoneGap RESTFul web services ...

Collabera

JavaScript Engineer

Chicago, IL

Expert in JavaScript programming * Node JS * Amber JS * MVC * It has to be a .NET application and NOT Java application Arun K S Technical Recruiter T: 425 298 1385 Additional Information All your ...

Varsity Tutors

JavaScript Tutor

Evanston, IL · Remote

$18 - $40/hr

Deep knowledge of JavaScript syntax, DOM manipulation, event handling, asynchronous programming with promises and async/await, ES6+ features, closures, prototypal inheritance, fetch API, and popular ...

Varsity Tutors

JavaScript Tutor

Buffalo Grove, IL · Remote

$18 - $40/hr

Deep knowledge of JavaScript syntax, DOM manipulation, event handling, asynchronous programming with promises and async/await, ES6+ features, closures, prototypal inheritance, fetch API, and popular ...

Varsity Tutors

JavaScript Tutor

Dekalb, IL · Remote

$18 - $40/hr

Deep knowledge of JavaScript syntax, DOM manipulation, event handling, asynchronous programming with promises and async/await, ES6+ features, closures, prototypal inheritance, fetch API, and popular ...

Varsity Tutors

JavaScript Tutor

Skokie, IL · Remote

$18 - $40/hr

Deep knowledge of JavaScript syntax, DOM manipulation, event handling, asynchronous programming with promises and async/await, ES6+ features, closures, prototypal inheritance, fetch API, and popular ...

Varsity Tutors

JavaScript Tutor

Chicago, IL · Remote

$18 - $40/hr

Deep knowledge of JavaScript syntax, DOM manipulation, event handling, asynchronous programming with promises and async/await, ES6+ features, closures, prototypal inheritance, fetch API, and popular ...

Varsity Tutors

JavaScript Tutor

Normal, IL · Remote

$18 - $40/hr

Deep knowledge of JavaScript syntax, DOM manipulation, event handling, asynchronous programming with promises and async/await, ES6+ features, closures, prototypal inheritance, fetch API, and popular ...

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All JobsJavascript Developer JobsJavascript Developer Jobs in Illinois

Javascript Developer information

See Illinois salary details

$28.6K

$103.3K

$163.8K

How much do javascript developer jobs pay per year?

As of Aug 18, 2026, the average yearly pay for javascript developer in Illinois is $103,282.00, according to ZipRecruiter salary data. Most workers in this role earn between $64,000.00 and $124,000.00 per year, depending on experience, location, and employer.

What does a JavaScript developer do?

As a JavaScript developer, your main responsibilities are to code functional web applications using the JavaScript (JS) programming language and to patch and update application code as needed to optimize functionality. You program front-end code for web applications, collaborate with back-end developers, and use tools like integrated development environments (IDEs), Git, and browser dev tools.

What does a JavaScript developer do?

A JavaScript Developer is responsible for designing, developing, and maintaining web applications using the JavaScript programming language. They typically work on both the front-end (user interface) and sometimes the back-end (server-side) of web projects, creating interactive features, optimizing performance, and ensuring cross-browser compatibility. Their role often involves collaborating with designers and other developers to deliver a seamless user experience.

What are the key skills and qualifications needed to thrive as a JavaScript developer, and why are they important?

To thrive as a JavaScript Developer, you need strong proficiency in JavaScript, HTML, CSS, and a solid understanding of web development principles, often backed by a degree in computer science or comparable experience. Familiarity with frameworks like React or Angular, version control systems like Git, and build tools such as Webpack is typically required. Problem-solving, attention to detail, and effective communication are crucial soft skills for collaborating on projects and resolving technical challenges. These skills and qualities ensure the delivery of robust, maintainable, and efficient web applications that meet user and business needs.

What are some common challenges faced by JavaScript developers when working on large-scale applications?

JavaScript Developers working on large-scale applications often encounter challenges such as maintaining code readability, managing dependencies, and ensuring performance optimization. As projects grow, it becomes essential to implement best practices like modularization, code reviews, and thorough testing to prevent bugs and technical debt. Collaboration with backend developers, designers, and QA testers is frequent, requiring clear communication and an agile mindset to deliver features efficiently and address issues as they arise.

What is the difference between Javascript Developer vs Front-End Developer?

AspectJavascript DeveloperFront-End Developer
Primary FocusWriting and optimizing JavaScript codeDesigning and implementing user interfaces
Required SkillsJavaScript, HTML, CSS, frameworks like React or AngularHTML, CSS, JavaScript, UI/UX design
Work EnvironmentWeb development teams, software companiesWeb design agencies, tech firms, startups

Javascript Developers focus on coding and scripting using JavaScript, while Front-End Developers handle the overall design and user experience of websites. Both roles often overlap, but the Javascript Developer specializes in scripting, whereas the Front-End Developer emphasizes UI/UX design and layout.

Is JavaScript in high demand?

JavaScript is a highly in-demand skill for developers, especially those working on web development, front-end frameworks, and full-stack projects. Its widespread use in building interactive websites and applications ensures strong job opportunities for JavaScript developers across various industries.
More about Javascript Developer jobs

What are the most commonly searched types of Javascript Developer jobs in Illinois?

The most popular types of Javascript Developer jobs in Illinois are:

What are popular job titles related to Javascript Developer jobs in Illinois?

For Javascript Developer jobs in Illinois, the most frequently searched job titles are:

What job categories do people searching Javascript Developer jobs in Illinois look for?

The top searched job categories for Javascript Developer jobs in Illinois are:

What cities in Illinois are hiring for Javascript Developer jobs?

Cities in Illinois with the most Javascript Developer job openings:

What are popular job titles related to Javascript Developer jobs in IL?

For Javascript Developer jobs in IL, the most frequently searched job titles are:

Javascript Developer jobs near you
Infographic showing various Javascript Developer job openings in Illinois as of August 2026, with employment types broken down into 85% Full Time, 2% Part Time, and 13% Contract. Highlights an 80% Physical, 6% Hybrid, and 14% Remote job distribution, with an average salary of $103,282 per year, or $49.7 per hour.

JavaScript Developer

People, Technology & Processes, LLC

Scott Air Force Base, IL • On-site

Full-time

Re-posted 12 days ago

Job description

Job Summary:
People, Technology and Processes, LLC is seeking a Java Script Programmer to provide non-personal services for knowledge management to include database and system enhancements, administration, integration, operation, and training of Knowledge Management. The role involves developing and maintaining frontend applications while collaborating with the team to improve application architecture and user experience.
Responsibilities:
• Develop, troubleshoot and maintain application code for existing applications on the front-end (TypeScript, ReactJS, HTML, CSS, Sass, AntD, etc.)
• Collaborate with team in defining architecture; implement data contracts; identify and proactively advise on potential risks to success
• Design, develop and test new modules throughout their life cycle - Translate design vision provided by the management team
• Manage application dependencies
• Develop and maintain regression and unit testing platform
• Research and recommend changes to management team to improve application and user experience
• Follow coding conventions, policies and procedures provided
Qualifications:
Required:
• 4+ years of Frontend development experience
• 5+ years of experience with J-Query, JSON, Cascading Style Sheet (CSS), and Hypertext Markup Language (HTML)
• Solid experience with ReactJs, TypeScript, JavaScript Frameworks, jQuery, YUI, REST and other API services, HTML/CSS, CSS preprocessors (i.e. SASS/SCSS or LESS), Linux
• Ability to test and debug websites
• Experience architecting and developing large scale frontend design
• Learn, understand and use JavaScript/TypeScript, JS frameworks used by the application; contribute to development, troubleshooting and maintenance of custom framework as needed
Preferred:
• Bachelor's degree (preferred)
Company:
We are a provider of Information Technology (IT) professional services, software solutions and professional development training. Founded in 2010, the company is headquartered in Tampa, USA, with a team of 51-200 employees. The company is currently Growth Stage.

Apply