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Javascript Backend Developer Jobs in Illinois (NOW HIRING)

Backend Engineer

Chicago, IL · On-site

$97K - $195K/yr

Work with technologies such as Java, Javascript and Typescript, RESTful API integrations ... A degree in Computer Science, Software Engineering, or a related field is preferred. * Strong ...

The interview process will evaluate your backend programming skills (primarily Python), and your experience working in JavaScript/TypeScript on a modern web framework (React skills are required!). It ...

Deep knowledge of front-end technologies including HTML, CSS, and JavaScript, back-end development ... engineering careers. * Conceptual Teaching & Problem-Solving: Skilled at teaching full-stack ...

Deep knowledge of front-end technologies including HTML, CSS, and JavaScript, back-end development ... engineering careers. * Conceptual Teaching & Problem-Solving: Skilled at teaching full-stack ...

Deep knowledge of front-end technologies including HTML, CSS, and JavaScript, back-end development ... engineering careers. * Conceptual Teaching & Problem-Solving: Skilled at teaching full-stack ...

Deep knowledge of front-end technologies including HTML, CSS, and JavaScript, back-end development ... engineering careers. * Conceptual Teaching & Problem-Solving: Skilled at teaching full-stack ...

Lead Angular Developer

Chicago, IL · On-site

$60 - $76.75/hr

Responsibilities include collaborating closely with cross-functional teams, including backend ... Demonstrated excellence with Typescript, HTML5, CSS3, and JavaScript. Experience building elegant ...

Deep knowledge of front-end technologies including HTML, CSS, and JavaScript, back-end development ... engineering careers. * Conceptual Teaching & Problem-Solving: Skilled at teaching full-stack ...

Deep knowledge of front-end technologies including HTML, CSS, and JavaScript, back-end development ... engineering careers. * Conceptual Teaching & Problem-Solving: Skilled at teaching full-stack ...

Deep knowledge of front-end technologies including HTML, CSS, and JavaScript, back-end development ... engineering careers. * Conceptual Teaching & Problem-Solving: Skilled at teaching full-stack ...

Frontend Developer, Marketing

Effingham, IL

$95K - $111K/yr

You will collaborate with designers, backend developers, and marketing teams to deliver exceptional ... Proficiency in HTML, CSS, and JavaScript , with experience in modern frameworks like React , Vue.js ...

Deep knowledge of front-end technologies including HTML, CSS, and JavaScript, back-end development ... engineering careers. * Conceptual Teaching & Problem-Solving: Skilled at teaching full-stack ...

Deep knowledge of front-end technologies including HTML, CSS, and JavaScript, back-end development ... engineering careers. * Conceptual Teaching & Problem-Solving: Skilled at teaching full-stack ...

Deep knowledge of front-end technologies including HTML, CSS, and JavaScript, back-end development ... engineering careers. * Conceptual Teaching & Problem-Solving: Skilled at teaching full-stack ...

IL · On-site

$110K - $150K/yr

Full Stack Developer (Backend Emphasis) Location: Hybrid, Scott AFB, IL Clearance Level: Secret ... Basic front end technologies for full stack integration, including HTML, CSS, and JavaScript.

Deep knowledge of front-end technologies including HTML, CSS, and JavaScript, back-end development ... engineering careers. * Conceptual Teaching & Problem-Solving: Skilled at teaching full-stack ...

Deep knowledge of front-end technologies including HTML, CSS, and JavaScript, back-end development ... engineering careers. * Conceptual Teaching & Problem-Solving: Skilled at teaching full-stack ...

Deep knowledge of front-end technologies including HTML, CSS, and JavaScript, back-end development ... engineering careers. * Conceptual Teaching & Problem-Solving: Skilled at teaching full-stack ...

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Javascript Backend Developer information

See Illinois salary details

$11

$55

$81

How much do javascript backend developer jobs pay per hour?

As of Jun 17, 2026, the average hourly pay for javascript backend developer in Illinois is $55.95, according to ZipRecruiter salary data. Most workers in this role earn between $45.87 and $66.15 per hour, depending on experience, location, and employer.

What does a JavaScript Backend Developer do?

A JavaScript Backend Developer is responsible for building and maintaining the server-side logic, databases, and APIs that power web applications. They use JavaScript, often with frameworks like Node.js, to process requests, manage data, and ensure smooth communication between the frontend and backend of an application. Their work ensures that web applications are scalable, secure, and efficient. JavaScript Backend Developers also collaborate with frontend developers and other team members to deliver seamless user experiences.

Which pays more, JavaScript or Python?

For a JavaScript Backend Developer, Python developers often have higher average salaries due to demand in data science, machine learning, and backend development. However, salary differences depend on experience, location, and industry, with both skills being highly valued in tech roles.

What are the key skills and qualifications needed to thrive as a Javascript Backend Developer, and why are they important?

To thrive as a Javascript Backend Developer, you need strong proficiency in JavaScript (especially Node.js), knowledge of backend frameworks, and a solid understanding of databases such as MongoDB or PostgreSQL. Familiarity with development tools like Git, RESTful APIs, Docker, and cloud platforms, as well as relevant certifications, is highly valuable. Excellent problem-solving, teamwork, and communication skills help you collaborate effectively and deliver robust solutions. These abilities are crucial for building scalable, secure, and maintainable backend services that power modern applications.

Can I learn backend in 6 months?

A JavaScript Backend Developer can acquire foundational backend skills in about 6 months with consistent study, focusing on server-side frameworks like Node.js, databases, and APIs. However, mastering complex systems and gaining real-world experience typically requires ongoing learning beyond this timeframe.

What are the typical challenges a JavaScript Backend Developer faces when scaling applications for high traffic?

JavaScript Backend Developers, especially those working with Node.js, often encounter challenges related to handling high concurrency, optimizing database queries, and maintaining application performance under heavy load. Ensuring efficient memory management and implementing robust error handling are also critical when scaling. Working closely with DevOps and frontend teams to optimize APIs and monitor system health is essential for delivering reliable, scalable backend solutions.

What is the difference between Javascript Backend Developer vs Javascript Frontend Developer?

AspectJavascript Backend DeveloperJavascript Frontend Developer
Primary FocusServer-side development, APIs, databasesUser interface, client-side interactions
Required SkillsNode.js, databases, server managementHTML, CSS, JavaScript, UI frameworks
Work EnvironmentBack-end servers, cloud platformsWeb browsers, client devices
Common UsageBuilding APIs, server logicDesigning web pages, user experience

The main difference between a Javascript Backend Developer and a Javascript Frontend Developer lies in their focus areas. Backend developers handle server-side logic, databases, and APIs, while frontend developers focus on creating engaging user interfaces and client-side interactions. Both roles require JavaScript skills but apply them in different parts of web development projects.

Is JavaScript good for backend development?

JavaScript is widely used for backend development through environments like Node.js, allowing developers to build scalable server-side applications using a single language. It offers a large ecosystem of libraries and frameworks, making it a popular choice for full-stack developers. Knowledge of asynchronous programming and server management is beneficial for backend roles involving JavaScript.

What is the salary of a JavaScript beginner?

The salary of a JavaScript beginner typically ranges from $50,000 to $70,000 annually, depending on location, education, and prior experience. Entry-level JavaScript developers often start with basic skills in front-end or back-end frameworks and may earn less in regions with lower living costs.
What job categories do people searching Javascript Backend Developer jobs in Illinois look for? The top searched job categories for Javascript Backend Developer jobs in Illinois are:
What cities in Illinois are hiring for Javascript Backend Developer jobs? Cities in Illinois with the most Javascript Backend Developer job openings:
Backend Engineer

Backend Engineer

FIS

Chicago, IL • On-site

$97K - $195K/yr

Full-time

Posted 20 days ago


FIS Global rating

7.3

Company rating: 7.3 out of 10

Based on 8 frontline employees who took The Breakroom Quiz

136th of 190 rated software companies


Job description

Job Description

We are FIS. Our technology powers the world's economy and our teams bring innovation to life. We champion diversity to deliver the best products and solutions for our colleagues, clients and communities. If you're ready to start learning, growing and making an impact with a career in fintech, we'd like to know: Are you FIS?

NOTE:

  • This position is hybrid (3 days onsite) in our FIS Office locations in Chicago (Illinois), Milwaukee (Wisconsin), Atlanta (Georgia) and Jacksonville (Florida).
  • Current and future sponsorship not available for this position

About the Team:

We are the premiere digital transformation partner for financial institutions committed to the future of banking and to creating safe and personalized customer experiences that help people better manage their financial lives. Our fully integrated and flexible platform is built on years of digital lending experience, enabling digital agility within months and a full suite of end-to-end consumer, small business and embedded finance solutions that fit the way people want to bank.

FIS technology powers the world's economy and our teams bring innovation to life. If you are ready to start learning, growing, and making an impact with a career in fintech, we encourage you to apply. Are you FIS?

A DAY IN THE LIFE:

As a Senior Software Engineer, your day will be filled with exciting challenges and opportunities to shape the future of financial technology. You'll collaborate with a talented team of engineers and play a crucial role in developing cutting-edge solutions that drive innovation in the financial sector. Your responsibilities will include developing and implementing scalable software, troubleshooting complex issues, and contributing to the overall success of our products.

WHAT WE'LL TRUST YOU TO DELIVER:

  • Take the lead in developing, and delivering high-quality software solutions. Mentor junior team members and contribute to a culture of continuous learning and improvement.
  • Engage in full-stack development, from backend systems to user interfaces. Work with technologies such as Java, Javascript and Typescript, RESTful API integrations, microservices and event-driven architecture.
  • Collaborate with cross-functional teams, including product managers, UX designers, and QA engineers, to bring innovative features and products to market. Participate in agile development processes to deliver results efficiently.
  • Analyze complex technical problems and propose effective solutions. Be proactive in identifying areas for improvement and optimizing existing systems for performance and reliability.
  • Uphold high standards of code quality, security, and best practices. Conduct code reviews and contribute to the establishment and adherence to coding standards.
  • Stay abreast of industry trends and emerging technologies. Contribute to the company's technological roadmap by introducing innovative ideas and solutions.

WHAT YOU LIKELY BRING TO THE TABLE:

  • A minimum of 5+ years of experience in software engineering, with a focus on SaaS or FinTech, is preferred.
  • A degree in Computer Science, Software Engineering, or a related field is preferred.
  • Strong proficiency in Java, Spring Boot, and Micronaut expertise, with a deep understanding of RESTful APIs and microservices.
  • Hands-on experience with PostgreSQL, Redis, and cloud-native environments (AWS, Kubernetes, Docker).
  • Familiarity with CI/CD pipelines (Jenkins, Git) and modern software engineering practices.
  • Experience with Jira, Confluence, and other similar project management tools is a plus!
  • Demonstrated ability to analyze and solve complex technical problems. A track record of delivering robust and scalable software solutions.
  • Excellent collaboration and communication skills. Ability to work effectively in a team-oriented environment and contribute to a positive and inclusive workplace culture.
  • A passion for innovation and a keen interest in staying ahead of the curve with emerging technologies (like AI-assisteddevelopment tools). Proven ability to contribute to the development of forward-thinking solutions.

Tech Stack:

Java, Springboot, Micronaut, Temporal, ActiveMQ, Postgres, Redis, ReactJs, Kubernetes, AWS, Jenkins, Git

FIS is committed to providing its employees with an exciting career opportunity and competitive compensation. The pay range for this full-time position is $97,935.00 - $195,660.00 and reflects the minimum and maximum target for new hire salaries for this position based on the posted role, level, and location. Within the range, actual individual starting pay is determined by additional factors, including job-related skills, experience, and relevant education or training. Any changes in work location will also impact actual individual starting pay. Please consult with your recruiter about the specific salary range for your preferred location during the hiring process.

FIS is committed to providing its employees with an exciting career opportunity and competitive compensation. The pay range for this full-time position is $99,040.00 - $168,380.00 and reflects the minimum and maximum target for new hire salaries for this position based on the posted role, level, and location. Within the range, actual individual starting pay is determined by additional factors, including job-related skills, experience, and relevant education or training. Any changes in work location will also impact actual individual starting pay. Please consult with your recruiter about the specific salary range for your preferred location during the hiring process.


Privacy Statement

FIS is committed to protecting the privacy and security of all personal information that we process in order to provide services to our clients. For specific information on how FIS protects personal information online, please see the Online Privacy Notice.

EEOC Statement

FIS is an equal opportunity employer. We evaluate qualified applicants without regard to race, color, religion, sex, sexual orientation, gender identity, marital status, genetic information, national origin, disability, veteran status, and other protected characteristics. The EEO is the Law poster is available here supplement document available here


For positions located in the US, the following conditions apply. If you are made a conditional offer of employment, you will be required to undergo a drug test. ADA Disclaimer: In developing this job description care was taken to include all competencies needed to successfully perform in this position. However, for Americans with Disabilities Act (ADA) purposes, the essential functions of the job may or may not have been described for purposes of ADA reasonable accommodation. All reasonable accommodation requests will be reviewed and evaluated on a case-by-case basis.

Sourcing Model

Recruitment at FIS works primarily on a direct sourcing model; a relatively small portion of our hiring is through recruitment agencies. FIS does not accept resumes from recruitment agencies which are not on the preferred supplier list and is not responsible for any related fees for resumes submitted to job postings, our employees, or any other part of our company.

#pridepass


FIS logo

About FIS

Sourced by ZipRecruiter

FIS is a leader in technology and services that helps businesses and communities thrive by advancing commerce and the financial world. For over 50 years, FIS has continued to drive growth for clients around the world by creating tomorrow’s technology, solutions and services to modernize today’s businesses and customer experiences. By connecting merchants, banks and capital markets, we use our scale, apply our deep expertise and data-driven insights, innovate with purpose to solve for our clients’ future, and deliver experiences that are more simple, seamless and secure to advance the way the world pays, banks and invests. Headquartered in Jacksonville, Florida, FIS employs more than 55,000 people across 50+ countries, dedicated to helping our clients be ahead of what’s next. FIS offers more than 450 solutions and processes over $75b of transactions around the planet. FIS is a Fortune 500® company and is a member of Standard & Poor’s 500® Index.

Industry

It services

Company size

10,000+ Employees

Headquarters location

Jacksonville , FL, US

Year founded

1968

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