ZipRecruiter

Log In

1

React Developer Jobs in Belleville, IL (NOW HIRING)

CYNET SYSTEMS

React Native Developer

Saint Louis, MO · On-site

$53 - $58/hr

Stay updated with the latest React Native ecosystem, libraries and mobile development trends. Qualification And Education: * Bachelor's degree in computer science, Engineering or equivalent ...

Jobsbridge

UI Developer

Saint Louis, MO · On-site

$48.50 - $63.25/hr

Good Experience with JavaScript frameworks AngularJS, react.js, jQuery, jQuery UI Thorough knowledge of Object oriented and functional programming concepts in JavaScript. Strong development ...

next page

Showing results 1-20

All JobsReact Developer JobsReact Developer Jobs in Belleville, IL

React Developer information

See Belleville, IL salary details

$38.9K

$125.6K

$154K

How much do react developer jobs pay per year?

As of Aug 6, 2026, the average yearly pay for react developer in Belleville, IL is $125,636.00, according to ZipRecruiter salary data. Most workers in this role earn between $103,000.00 and $152,500.00 per year, depending on experience, location, and employer.

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

AspectReact DeveloperFront-End Developer
Primary FocusBuilding user interfaces with ReactDeveloping UI/UX across various frameworks
Required SkillsReact, JavaScript, HTML, CSSJavaScript, HTML, CSS, multiple frameworks
Work EnvironmentWeb development teams, startups, tech companiesWeb development teams, agencies, corporate IT
Common CertificationsReact certifications, JavaScript coursesJavaScript certifications, front-end development courses

React Developers specialize in building user interfaces using React, while Front-End Developers work on a broader range of UI/UX development across various frameworks. Both roles require strong JavaScript, HTML, and CSS skills, but React Developers focus more on React-specific tools and libraries. Employers in tech companies and startups often seek both, but React Developers are more specialized in React-based projects.

What is a React developer?

React Developers are software engineers who specialize in building user interfaces using the React JavaScript library. They design and implement interactive components on web applications, ensuring seamless and efficient user experiences. Their responsibilities often include coding, debugging, optimizing performance, and collaborating with designers and backend developers. React Developers need a strong understanding of JavaScript, HTML, CSS, and the React framework. They may also work with related tools like Redux, TypeScript, and testing libraries.

Is React developer still in demand?

React developers are currently in high demand due to the widespread use of React.js for building user interfaces in web development. Skills in JavaScript, JSX, and related tools like Redux or TypeScript enhance employability, and demand is expected to remain strong as companies continue to prioritize modern, responsive web applications.

What does a React developer do?

As a React developer, you work in a comprehensive JavaScript library known as React. Your responsibilities are to design, develop, and implement this front-end technology for businesses. Your software includes user-facing features that consist of reusable components for future use. Other duties include testing software for functionality issues, translating designs into code, and optimizing components for optimum performance. Part of your job is utilizing workflows such as Flux and Redux to complete tasks. You also coordinate with teams to ensure each layer of the infrastructure works together.

Is React in demand in 2026?

React Developer roles are expected to remain in high demand through 2026 due to the continued popularity of React for building dynamic web applications. Skills in JavaScript, component-based architecture, and familiarity with tools like Redux or Next.js enhance employability in this field.

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

To thrive as a React Developer, you need a solid understanding of JavaScript, ES6+, HTML, CSS, and a proven track record with React.js and related libraries. Familiarity with version control systems like Git, package managers such as npm or Yarn, and experience with build tools and testing frameworks are typically required. Strong problem-solving skills, attention to detail, and effective communication set outstanding developers apart. These competencies ensure you can build efficient, maintainable user interfaces and collaborate effectively within development teams.

What are the most common challenges React developers face when working on large-scale applications?

React Developers working on large-scale applications often encounter challenges such as managing complex state logic, ensuring code maintainability, and optimizing application performance. Collaborating effectively with backend teams and coordinating updates in component libraries are also crucial. Additionally, keeping up with the evolving React ecosystem and integrating third-party tools or libraries can require ongoing learning and adaptation. Leveraging best practices like code splitting, lazy loading, and clear state management patterns can help address these challenges.

What's the average React developer salary?

The average salary for a React developer varies depending on experience, location, and skill level, but typically ranges from $70,000 to $120,000 annually in many regions. Developers with advanced knowledge of JavaScript, Redux, and modern frameworks may earn higher salaries, especially in competitive markets or with full-time remote roles.
More about React Developer jobs
What are the most commonly searched types of React Developer jobs in Belleville, IL? The most popular types of React Developer jobs in Belleville, IL are:
What are popular job titles related to React Developer jobs in Belleville, IL? For React Developer jobs in Belleville, IL, the most frequently searched job titles are:
What cities near Belleville, IL are hiring for React Developer jobs? Cities near Belleville, IL with the most React Developer job openings:
React Developer jobs near you
Infographic showing various React Developer job openings in Belleville, IL as of August 2026, with employment types broken down into 79% Full Time, 5% Part Time, 14% Contract, and 2% Nights. Highlights an 81% Physical, 4% Hybrid, and 15% Remote job distribution, with an average salary of $125,636 per year, or $60.4 per hour.

React Native Developer

CYNET SYSTEMS

Saint Louis, MO • On-site

$53 - $58/hr

Contractor

Posted 28 days ago

Job description

Job Overview:

Pay Range: $53hr - $58hr

Requirement/Must Have:

  • 8+ years of professional experience in mobile app development.
  • 3+ years of hands on experience with React Native and JavaScript/TypeScript.
  • Strong understanding of React Native architecture, including hooks, contexts, and state management.
  • Deep knowledge of mobile app performance tuning, memory optimization and debugging.
  • Familiarity with native Android (Kotlin/Java) or iOS (Swift/Objective-C) development is a plus.
  • Experience with Firebase for analytics tracking, crash reporting, and app distribution.
  • Strong understanding of App Store and Play Store deployment processes.
  • Experience with CI/CD pipelines for mobile apps.
  • Good understanding of version control systems, branching strategies, and collaborative development workflows.
  • Solid understanding of security practices, including data encryption and secure storage.

Responsibilities:

  • Design and develop cross-platform mobile applications using React Native.
  • Architect, optimise and maintain codebases for performance, scalability and reliability.
  • Integrate RESTful APIs, GraphQL, Firebase and third-party libraries.
  • Build robust solutions for offline capabilities and local data persistence.
  • Enforce best practices in coding standards, testing, and performance optimization.
  • Implement native modules (Android/iOS) when required to extend React Native functionality.
  • Work closely with UI/UX teams to translate design mockups into clean, responsive and user friendly interfaces.
  • Stay updated with the latest React Native ecosystem, libraries and mobile development trends.

Qualification And Education:

  • Bachelor's degree in computer science, Engineering or equivalent experience.
  • Strong analytical, problem solving and debugging abilities.
  • Excellent communication skills and ability to work in a collaborative environment.
  • Self motivated and capable of working independently with minimal supervision, as well as within a team.

Founded in 2010 and headquartered in the Washington, DC metro area, Cynet Systems Inc. is a leading staffing and recruiting powerhouse. Proudly recognized as a nationally and locally certified diversity firm, Cynet delivers agile, scalable talent solutions across industries. With an active footprint in all 50 U.S. states and Canada, we support thousands of consultants through our expansive, high-performing recruitment engine operating across North America and Asia—ensuring speed, quality, and consistency in every hire.
Cynet Systems logo

About Cynet Systems

Sourced by ZipRecruiter

Cynet Systems Inc is a staffing and recruiting corporation nestled in Ashburn, VA, USA. Established in 2010, the company operates within the Information Technology and Services sector, specializing in providing effective workforce solutions to different business needs, including IT consulting, direct hire, and contract staffing services. Through the years, Cynet Systems has built an impressive portfolio, going beyond borders and expanding its operations internationally in Canada and India. Rooted in its core values of teamwork, leadership, and commitment, Cynet Systems helps businesses unlock their full potential by providing versatile and competent professionals that perfectly align with their needs. Fueled by their unwavering mission to deliver top-tier talent to businesses worldwide, Cynet Systems garnered various recognitions including SIA's fastest-growing staffing firms and Best Place to Work in Virginia for 2019.

Industry

It services

Company size

501 - 1,000 Employees

Headquarters location

Sterling, VA, US

Year founded

2010

Social media

Twitter

View All Cynet Systems Jobs