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Javascript Software Engineer Jobs in Illinois (NOW HIRING)

The Joint Commission

Sr. Software Engineer

Oak Brook, IL · On-site

$80 - $110/hr

Overview The Software Engineer should be experienced in leading software projects and will be ... NET development * 5+ years of experience with web development (HTML, JavaScript, CSS, jQuery) * 2 ...

New

Joint Commission

Sr. Software Engineer

Oakbrook Terrace, IL · On-site

$96K - $128K/yr

The Software Engineer should be experienced in leading software projects and will be responsible ... NET development * 5+ years of experience with web development (HTML, JavaScript, CSS, jQuery) * 2 ...

galaxyitechnologies

Javascript Developer

Chicago, IL · On-site

Javascript Developer CHICAGO IL 24-MONTHS+, OR CTH The position is to maintain and enhance a NodeJS ... The software developer will also analyze and amend software errors in a timely and accurate fashion ...

Reliance, Inc.

AI Software Engineer 1

Chicago, IL · On-site

$80K - $100K/yr

The AI Software Engineer I is responsible for supporting the development, implementation, and ... Familiarity with one or more programming languages such as Python, Java, JavaScript, or C+

Capital One

Senior Lead Software Engineer

Chicago, IL · On-site

Senior Lead Software Engineer Do you love building and pioneering in the technology space? Do you ... Utilize programming languages like JavaScript, Java, HTML/CSS, TypeScript, SQL, Python, and Go ...

Capital One

Senior Lead Software Engineer

Chicago, IL · On-site

Senior Lead Software Engineer Do you love building and pioneering in the technology space? Do you ... Utilize programming languages like JavaScript, Java, HTML/CSS, TypeScript, SQL, Python, and Go ...

Ritchie Bros.

Software Engineer

Westchester, IL · On-site

Software Engineer II (Mid-Level) - .NET Backend / Microservices (Azure) + React/Vue What You'll Do ... Frontend experience required: hands-on work with React and/or Vue.js (JavaScript/TypeScript ...

MessageControl

Senior Software Engineer

Chicago, IL · On-site

$126K - $166K/yr

As a Software Engineer at MessageControl you'll be building intelligent products to protect people ... Language polyglot (Javascript, PHP, Python, C#, etc.) * Bonus: Prior experience building ...

MessageControl

Senior Software Engineer

Chicago, IL · On-site +1

$126K - $166K/yr

As a Software Engineer at MessageControl you'll be building intelligent products to protect people ... Language polyglot (Javascript, PHP, Python, C#, etc.) * Bonus: Prior experience building ...

Ritchie Bros.

Software Engineer

Westchester, IL

The Software Engineer, as a member of the software development team, will be focused on developing ... HTML/CSS/JavaScript foundations with knowledge in the React framework. An eye for developing and ...

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Showing results 41-60

All JobsJavascript Software Engineer JobsJavascript Software Engineer Jobs in Illinois

Javascript Software Engineer information

See Illinois salary details

$37

$66

$87

How much do javascript software engineer jobs pay per hour?

As of Aug 21, 2026, the average hourly pay for javascript software engineer in Illinois is $66.34, according to ZipRecruiter salary data. Most workers in this role earn between $49.38 and $81.54 per hour, depending on experience, location, and employer.

What is a Javascript software engineer?

A JavaScript Software Engineer is a developer who specializes in building applications using JavaScript, both on the frontend (with frameworks like React or Angular) and backend (using Node.js). They design, develop, test, and maintain web applications, ensuring responsiveness, performance, and user experience. These engineers often collaborate with designers, product managers, and other developers to create dynamic web solutions. Strong knowledge of JavaScript, its ecosystem, and related tools is essential for this role.

What does a typical day look like for a Javascript software engineer?

A typical day for a Javascript Software Engineer involves writing and reviewing code, participating in team stand-up meetings, and collaborating closely with product managers, designers, and QA engineers to develop new features or resolve issues. You may spend time debugging applications, updating documentation, and working with modern development tools to deploy and test your code. Continuous learning is important, as staying updated on the latest frameworks and best practices is part of the role. Depending on the company, you might also contribute to architectural decisions or support junior developers through mentoring.

What are the key skills and qualifications needed to thrive as a Javascript software engineer?

To thrive as a Javascript Software Engineer, you need strong proficiency in JavaScript, knowledge of modern frameworks (such as React, Angular, or Vue), and a solid understanding of web development fundamentals, often backed by a degree in computer science or equivalent experience. Experience with version control systems like Git, CI/CD pipelines, and familiarity with RESTful APIs are highly valuable; certifications from platforms like freeCodeCamp or Microsoft can be advantageous. Problem-solving ability, collaboration, and effective communication are important soft skills that distinguish top performers in this role. These competencies are critical for building reliable, scalable applications and working efficiently in dynamic, collaborative tech environments.

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

The most popular types of Javascript Software Engineer jobs in Illinois are:

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

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

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

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

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

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

Javascript Software Engineer jobs near you
Infographic showing various Javascript Software Engineer job openings in Illinois as of August 2026, with employment types broken down into 1% As Needed, 90% Full Time, 6% Part Time, and 3% Contract. Highlights an 87% Physical, 4% Hybrid, and 9% Remote job distribution, with an average salary of $137,988 per year, or $66.3 per hour.

Software Engineer - OPT EAD/STEM OPT

Purple Hires Inc

Mossville, IL • On-site

Full-time

Posted 18 hours ago

Posted today

Job description

Job Summary

Caterpillar is looking for a Software Engineer 3 to support the Advanced Controls and Condition Monitoring team. The role focuses on control algorithm development, software development, simulation, and validation using SIL, HIL, and machine testing.

Key Responsibilities
  • Develop and analyze control algorithms and software.
  • Perform SIL and HIL simulations and validate software on machines.
  • Develop, test, evaluate, and deploy control and diagnostic solutions.
  • Troubleshoot and debug embedded software.
  • Collaborate with engineering teams and communicate technical results.
  • Participate in code/model reviews and software releases.
Required Education & Experience
  • Master’s degree required in Electrical/Electronic Engineering, Mechanical Engineering, or related field.
  • 3+ years of industry experience.
  • PhD preferred.
  • Bachelor’s degree alone is not acceptable.
Top Required Skills
  • Strong MATLAB/Simulink, Stateflow, Simscape Power Systems, and co-simulation experience.
  • Knowledge of control theory, PID, nonlinear control, adaptive/sliding-mode control, neural networks, or fuzzy logic.
  • Experience with embedded software and real-time operating systems/Linux.
Additional Technical Skills
  • Debugging tools such as Lauterbach, CANape, and CANalyzer.
  • Git/version control.
  • Programming experience with C, C++, Python, Java, or JavaScript.
  • Generator/engine controls experience is a plus.
  • Experience with hybrid energy systems is a plus.
Ideal Candidate

A controls/software engineer with a Master’s degree, strong MATLAB/Simulink and control-system experience, and hands-on experience with embedded software, real-time systems, SIL/HIL testing, and C/C++/Python.

Work Environment: Approximately 90% office; PPE required when working around machines.