ZipRecruiter

Log In

1

React Developer Jobs in Belleville, IL (NOW HIRING)

RIVIDIUM

Software Developer - Advanced

Saint Louis, MO · On-site

$150K - $160K/yr

RiVidium Inc. is seeking a Full Stack Software Developer to develop, create, maintain, and write ... Ability to build interactive user interfaces using React and design robust database structures.

Interco

Junior Software Developer

Saint Louis, MO · On-site

$60K - $65K/yr

Interco is seeking a talented Junior Software Developer with a strong background in JavaScript and React.js to contribute to an innovative Enterprise Resource Planning (ERP) project. In this role ...

Interco

Junior Software Developer

Saint Louis, MO · On-site

$60K - $65K/yr

Interco is seeking a talented Junior Software Developer with a strong background in JavaScript and React.js to contribute to an innovative Enterprise Resource Planning (ERP) project. In this role ...

Meridian Systematics

Software Developer

Saint Louis, MO · On-site

$90K - $110K/yr

Software Developer - Enterprise Geospatial Solutions Location: On-Site About the Role Join our ... Advanced proficiency in at least one modern language (Python, Java, JavaScript, React, or .NET)

Meridian Systematics

Software Developer

Saint Louis, MO · On-site

$90K - $110K/yr

Software Developer - Enterprise Geospatial Solutions Location: On-Site About the Role Join our ... Advanced proficiency in at least one modern language (Python, Java, JavaScript, React, or .NET)

Meridian Systematics

Software Developer

Saint Louis, MO · On-site

$90K - $110K/yr

Vision insurance Software Developer - Enterprise Geospatial Solutions Location: On-Site About the ... Advanced proficiency in at least one modern language (Python, Java, JavaScript, React, or .NET)

Esri

Application Developer - JavaScript

Saint Louis, MO · On-site

$83K - $141K/yr

Work with modern web application frameworks such as React, Angular, Svelte, or Vue to build ... Bachelor's degree in computer science, engineering, mathematics, GIS, or related field * Ability to ...

Build-A-Bear Workshop

Developer

Saint Louis, MO · On-site

React) • Skilled in RESTful API development & integration • Skilled with version control ... DevOps practices • Exposure to microservices architecture and distributed systems • Prior ...

The Timberline Group

Senior C# .Net developer

Saint Louis, MO · On-site

$53 - $70/hr

... libraries (React, Angular) * Agile methodology practitioner * Knowledge of modern versions of ... Knowledge of DevOps practices Education / Other Experience: * College Degree a plus * E-Commerce ...

previous pagenext page

Showing results 21-40

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 Sep 4, 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 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.

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.

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 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.

Are React developers in high demand?

React developers are in high demand due to the widespread use of React for building user interfaces in web development. Employers seek professionals skilled in JavaScript, React, and related tools like Redux, with many job openings across various industries. The demand is expected to remain strong as front-end development continues to grow.

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's the average React Developer salary?

The average React Developer salary varies based on experience, location, and skill level, but typically ranges from $70,000 to $120,000 annually in the United States. Developers with advanced skills in JavaScript, Redux, and front-end frameworks tend to earn higher salaries, especially in tech hubs or with specialized certifications.
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 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 $125,636 per year, or $60.4 per hour.

Software Developer - Advanced

RiVidium, Inc

Saint Louis, MO • On-site

$150K - $160K/yr

Full-time

Re-posted 29 days ago

Job description

Full-Time/Part-Time
Full-Time
Description
RiVidium Inc. is seeking a Full Stack Software Developer to develop, create, maintain, and write/code new (or modifies existing) computer applications, software, or specialized utility programs.
Tasks:
  • Automate the Risk Management Framework (RMF) process to the fullest extent.
  • Develop custom tools and dashboards, including executive data visualizations in Tableau, to support and enhance system continuous monitoring efforts.
  • Lead intermediate-level developers to success.
  • Act as a customer-facing representative engaging with key stakeholders.
  • Serve as a Frontend Designer to develop and design application interfaces using HTML, CSS, JavaScript, and React.
  • Write, develop, and deploy robust code across the full stack, utilizing languages such as Python.
  • Develop, integrate, and maintain databases to support backend application requirements.
  • Communicate effectively with all levels of personnel, both technical and non-technical.
  • Analyze information to determine, recommend, and plan the development of a new application or modification of an existing application.
  • Analyze user needs and software requirements to determine feasibility of design within time and cost constraints.
  • Apply coding and testing standards, apply security testing tools including "'fuzzing" static-analysis code scanning tools, and conduct code reviews.
  • Apply secure code documentation.
  • Capture security controls used during the requirements phase to integrate security within the process, to identify key security objectives, and to maximize software security while minimizing disruption to plans and schedules.
  • Compile and write documentation of program development and subsequent revisions, inserting comments in the coded instructions so others can understand the program.
  • Confer with systems analysts, engineers, programmers, and others to design application and to obtain information on project limitations and capabilities, performance requirements, and interfaces.
  • Consult with engineering staff to evaluate interface between hardware and software.
  • Correct errors by making appropriate changes and rechecking the program to ensure that desired results are produced.
  • Design, develop, and modify software systems, using scientific analysis and mathematical models to predict and measure outcome and consequences of design.
  • Develop secure code and error handling.
  • Evaluate factors such as reporting formats required, cost constraints, and need for security restrictions to determine hardware configuration.
  • Identify basic common coding flaws at a high level.

Abilities:
  • Ability to demonstrate a deep knowledge of software development and showcase a high level of understanding.
  • Ability to design and develop continuous monitoring tools and dashboards, analyzing and visualizing complex data using Tableau and other technologies.
  • Ability to operate effectively as a Full Stack Developer using Python, HTML, CSS, and JavaScript.
  • Ability to build interactive user interfaces using React and design robust database structures.
  • Ability to understand and apply the Risk Management Framework (RMF).
  • Ability to tailor code analysis for application-specific concerns.
  • Ability to use and understand complex mathematical concepts (e.g., discrete math).
  • Ability to develop secure software according to secure software deployment methodologies, tools, and practices.
  • Ability to apply cybersecurity and privacy principles to organizational requirements (relevant to confidentiality, integrity, availability, authentication, non-repudiation).
  • Ability to identify critical infrastructure systems with information communication technology that were designed without system security considerations.

Requirements:
  • Must possess established Risk Management Framework (RMF) knowledge upon hire.
  • Demonstrated experience with Python, HTML, CSS, JavaScript, and React.
  • Demonstrated experience working with databases, building visualizations in Tableau, and developing tools for continuous monitoring.
  • Bachelor degree or higher from an accredited college or university
  • Prefer an accredited Computer Science, Cyber Security, Information Technology, Software Engineering, Information Systems, or Computer Engineering degree; or a degree in a Mathematics or Engineering field.

Certifications: IAT Level 2
Active TS/SCI clearance required with the ability to get a CI Poly
The annual salary range for this position is $150,000-$160,000.
The listed salary range represents a general guideline; however, RiVidium Inc. considers a number of factors when determining base salary offers such as the scope and responsibilities of the position and the candidate's experience, education, skills, and current market conditions. At RiVidium Inc. it is not typical for an individual to be hired at or near the top of the range for their role and compensation decisions are dependent on the facts and circumstances of each case.
About the Organization
Established in 2008, RiVidium, Inc. (dba TripleCyber) is a VA-Verified SDVOSB and an SBA-Certified 8(a) company. To prepare our clients for the future, RiVidium has balanced all parts of our organization to attract the finest employees in order to 'Strive to be the missing element defining tomorrow's technology'. RiVidium keeps pace and surpasses its competitors by meeting challenges of advancements in Logistics, Human Capital, Cyber, Intelligence & Technology.
EOE Statement
We are an equal employment opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability status, protected veteran status or any other characteristic protected by law. If you need a reasonable accommodation for any part of the employment process, please contact Human Resources (HR) at hr@rividium.com.
This position is currently accepting applications.

Apply