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React Js Frontend Jobs in California (NOW HIRING)

They are seeking a seasoned Staff Software Development Engineer (UI/React.js) to craft high-quality ... Responsibilities : • Craft high-quality libraries and tools for building frontend applications ...

Sr. React Developer

Sunnyvale, CA · On-site

$122K - $142K/yr

The ideal candidate should have experience building scalable, responsive web applications using React.js , along with a strong understanding of JavaScript , HTML/CSS , and RESTful APIs. Key Skills:

... Next.js frontend. Someone who has built LLM applications in production, not just prototypes. Must have * Strong Python -- async, FastAPI or similar * Strong TypeScript/Node * Next.js and React ...

Front End Developer

Mountain View, CA · On-site

$122K - $142K/yr

Extensive experience solving cross-browser compatible front-end web experiences with React.js, HTML5, CSS3 * Awareness of web performance considerations * Detail-oriented with strong written and ...

Sr. Java Developer (Ember.js)

San Jose, CA

$67 - $85.50/hr

Required skills: * Front End TECHNOLOGIES Must have : Ember.js ,HTML5,CSS3 * Familiarity with : Angular js,backbone or react js Backend Must Have : Mongo DB * Familiarity with : MySQL, RDMS Server ...

UI React Developer

Palo Alto, CA · On-site

$58.75 - $76.50/hr

Palo Alto, CA. 6+ years of experience in React.js and its core principles, including React hooks ... Understanding of RESTful APIs and integration with front-end applications Experience with version ...

Showing results 41-60

React Js Frontend information

What is the difference between React Js Frontend vs Angular Developer?

AspectReact Js FrontendAngular Developer
Required SkillsJavaScript, React, HTML, CSSTypeScript, Angular, HTML, CSS
Work EnvironmentFlexible, component-based UI developmentStructured, full-featured framework
Industry UsageWeb applications, startups, tech companiesEnterprise apps, large-scale projects

React Js Frontend and Angular Developer roles share common skills like HTML and CSS but differ mainly in frameworks and language specifics. React focuses on a flexible, component-based approach using JavaScript, while Angular uses TypeScript and a comprehensive framework structure. Both are in high demand across various industries, but React is often preferred for lightweight, fast-loading apps, whereas Angular suits large, complex enterprise solutions.

How does a React JS frontend developer typically collaborate with backend teams during a project?

React JS Frontend Developers work closely with backend teams to ensure seamless integration between the user interface and server-side logic. Collaboration often involves regular meetings to align on API requirements, data formats, and endpoints. Frontend developers may provide feedback on API design for optimal user experience and troubleshoot issues together with backend engineers. Effective communication and version control practices, such as using Git and code reviews, are essential for smooth collaboration and successful project delivery.

What is a React JS frontend developer?

A React JS Frontend Developer is a software engineer who specializes in building the user-facing parts of web applications using the React JavaScript library. They are responsible for designing and developing interactive and responsive user interfaces, ensuring seamless user experiences, and integrating frontend components with backend services. These developers use React’s component-based architecture to create reusable UI elements, manage application state, and optimize performance. Their role often involves collaborating with designers, backend developers, and other stakeholders to deliver high-quality web applications.

What are the key skills and qualifications needed to thrive as a React JS frontend developer?

To thrive as a React JS Frontend Developer, you need a solid understanding of JavaScript, HTML, CSS, and deep expertise in React library concepts such as components, hooks, and state management. Familiarity with tools like Redux, Webpack, Git, RESTful APIs, and testing frameworks, along with a degree in computer science or equivalent experience, is often expected. Strong problem-solving, attention to detail, and communication skills set standout developers apart in collaborative and dynamic environments. Mastery of these skills ensures responsive, maintainable, and scalable user interfaces that enhance user experience and support business goals.
What cities in California are hiring for React Js Frontend jobs? Cities in California with the most React Js Frontend job openings:
Infographic showing various React Js Frontend job openings in California as of August 2026, with employment types broken down into 1% As Needed, 81% Full Time, 12% Part Time, and 6% Contract. Highlights an 87% Physical, 2% Hybrid, and 11% Remote job distribution.

UI/UX Frontend Developer | Onsite

Photon

San Francisco, CA • On-site

Full-time, Contractor

Medical, Dental, Vision, Retirement, PTO

Re-posted 25 days ago


Job description


seeking a proficient React.js developer to join our front-end development team. In this position, you will be crafting and integrating UI components through React.js methodologies and workflows like Webpack. The successful candidate will be responsible for translating user and business needs into functional, visually engaging, and intuitive frontend designs. You will also play an integral role in optimizing front-end performance and maintaining comprehensive documentation for our front-end codebase.
Key Responsibilities:
• Developing and implementing UI components using React.js
• Translate wireframes, storyboards, and user flows into high-quality code and interactive elements.
• Implement modern UI/UX designs for engaging user experiences.
• Building reusable components and front-end libraries for future use
• Optimize applications for maximum speed, scalability, and performance.
• Ensure cross-browser compatibility and mobile responsiveness.
• Validate user input before submitting backend services.
• Collaborate with backend developers and designers to improve usability and functionality.
• Participate in code reviews to maintain code quality and consistency.
• Evaluate applications to ensure all components function properly across different browsers and devices.
• Troubleshooting and debugging issues to ensure smooth user experiences
• Perform regular updates and improvements to keep applications current with design trends.
• Document technical aspects of projects for future reference and debugging.
• Stay up to date with the latest development trends and technologies.
Required Skills:
Seeking candidates with successful academic and professional careers and demonstrated leadership ability; an ideal candidate will have:
• Must Have -
o Strong coding skills with React.js.
o Proficient in JavaScript (ES6+), Typescript (ES6+), HTML5, CSS3, and responsive UI/UX design.
o Hands-on experience with Material-UI, Styled Component, Webpack, Rollup, Storybook, React-Router-Dom (In depth to handle parent to child routing), Dom manipulation.
o Expertise in state management (Zustand, Redux, Context API) and custom hooks.
o Strong understanding of component architecture, reusability, and optimization.
o Hands-on experience with Testing (Jest, React Testing Library).
o Proficient in integrating and consuming RESTful APIs.
o Knowledge of CI/CD pipelines for automated builds and deployments.
o Understanding of module federation and micro frontend architecture.
o Knowledge of performance optimization for large-scale applications.
o Strong knowledge of Security, Performance, and Accessibility best practice for web applications.
o Strong communication skills for collaboration with cross-functional teams and global clients.
o Good understanding of containerization (Docker) and application configuration.
o Knowledge of caching strategies and optimization techniques.
• Nice to Have -
o Knowledge of Next.js for server-side rendering and SEO optimization.
o Working experience with DevExtreme DataGrid for large data handling, Bi Dashboard DevExtreme.
o Working experience in integration with component library
Preferred Experience:
• 7+ years of experience in frontend development.
• 7+ years of experience in integrating front-end applications with RESTful APIs.
• 5+ years of experience with Azure Cloud services for frontend deployment and Azure DevOps
• 5+ years of exposure to Agile software development methodologies.
Education, Training and Certifications:
• Bachelor's degree in computer science, finance, or other relevant areas
• Any Azure or ReactJS certification is a plus
Compensation, Benefits and Duration
Minimum Compensation: USD 50,000
Maximum Compensation: USD 175,000
Compensation is based on actual experience and qualifications of the candidate. The above is a reasonable and a good faith estimate for the role.
Medical, vision, and dental benefits, 401k retirement plan, variable pay/incentives, paid time off, and paid holidays are available for full time employees.
This position is available for independent contractors
No applications will be considered if received more than 120 days after the date of this post