> Markdown version of [/jobs/ext/3802393-react-js-developer](https://www.wearedevelopers.com/jobs/ext/3802393-react-js-developer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # React.js Developer - **Company:** Innovity Incorporated - **Location:** Trenton, NJ, United States - **Contract:** Permanent contract - **Skills:** HTML, JavaScript (Programming Language), Agile Methodology, Application Performance Management, HTML5, Unit Testing, Bootstrap (Software), Browser Compatibility, Cascading Style Sheets (CSS), Code Review, Continuous Integration, Software Debugging, Design of User Interfaces, JSON, Next.js, Responsive Web Design, TypeScript, Web Applications, Network Routers, ReactJS, Backend, Git, Webpack, Material UI, Npm(Software), Front End Software Development, React Redux, React Testing Library, Restful APIs, Es2015, Software Version Control - **Published:** October 17, 2026 - **Apply:** https://www.careerjet.com/jobad/us7a1e81c5010fcdaf717f0eac10776594 ## About the Role We are looking for a skilled React.js Developer to design, develop, test, and maintain modern web applications. The candidate should have strong knowledge of React.js, JavaScript, HTML, CSS, and front-end development best practices., Strong knowledge of React.js. Good understanding of JavaScript ES6+. Proficiency in HTML5 and CSS3. Knowledge of React Hooks and component lifecycle. Experience with REST API integration and JSON. Understanding of Redux or Context API. Knowledge of Git and npm. Understanding of responsive design and browser compatibility. Preferred Skills TypeScript. Next.js. Jest and React Testing Library. Material UI or Bootstrap. Webpack or Vite. CI/CD and Agile/Scrum methodologies. ## Description Develop responsive web applications using React.js. Build reusable UI components and front-end modules. Write clean, maintainable, and efficient JavaScript code. Develop user interfaces using HTML5, CSS3, and modern JavaScript. Manage application state using React Hooks, Context API, or Redux. Integrate REST APIs and handle JSON data. Implement routing using React Router. Optimize application performance and page loading speed. Perform unit testing, debugging, and troubleshooting. Collaborate with UI/UX designers, backend developers, and QA engineers. Use Git for source code management. Participate in code reviews and Agile development activities.