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React Intern Jobs in California (NOW HIRING)

... Intern to join their founding team in San Francisco. You'll work directly with the CTO to ship ... At least 6 months of experience with React and TypeScript in a production environment. * Hands-on ...

... Intern to join their founding team in San Francisco. You'll work directly with the CTO to ship ... At least 6 months of experience with React and TypeScript in a production environment. * Hands-on ...

... Engineer Intern . You'll build and ship features daily alongside the CTO, working on a fully ... At least 6 months of hands-on experience with React and TypeScript in production environments.

... Engineer Intern . You'll build and ship features daily alongside the CTO, working on a fully ... At least 6 months of hands-on experience with React and TypeScript in production environments.

We are looking for a Full Stack developer intern who is proficient with Javascript. Your primary ... Hands-on experience in UI development using Vue/React. * Understanding of microservices and ...

We are seeking a highly motivated and versatile Full Stack Engineer Intern to join our core ... Experience with at least one modern frontend framework such as Next.js, TypeScript, React, Vue.js ...

About the Role As a Research Intern , you will contribute to building the computational ... Experience with web development (React, SQL) is a plus but not required Nice to Have * Experience ...

As a Software Engineering intern at Centerfield, you'll work directly with our Engineering team ... Experience with React or other modern front-end frameworks * Exposure to Node.js, Python, or Java

As a Software Engineering intern at Centerfield, you'll work directly with our Engineering team ... Experience with React or other modern front-end frameworks * Exposure to Node.js, Python, or Java

About the internship We're hiring an Engineering Intern for a 13-week internship at our San ... Full-stack or frontend experience (React or similar) for the Product track * Infrastructure, data ...

Role Overview We're looking for a Design Engineering Intern to help shape, design, and build high ... Hands-on experience with TypeScript, React, and modern frontend development, through coursework ...

Role Overview As a Software Engineer Intern, Backend at Serval, you'll work directly on core parts ... Go, gRPC, Kubernetes, React, TypeScript, AWS, or Terraform. * Previous internship or project ...

React Native on mobile, Next.js on web, and Node.js services powering both * Work on AI-powered product features, including prompt design, model integration, and the plumbing that makes them fast and ...

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Showing results 1-20

React Intern information

What does a React intern do?

A React Intern assists development teams by working on web applications using the React.js framework. Their responsibilities typically include writing and maintaining front-end code, fixing bugs, collaborating with designers and senior developers, and learning best practices in React development. Interns often participate in code reviews, work with tools like Git, and gain hands-on experience with modern JavaScript and component-based architectures. This role is ideal for students or recent graduates looking to build their skills and portfolios in front-end development.

What types of projects or tasks can a React intern expect to work on during their internship?

As a React Intern, you can expect to assist with developing and maintaining user interfaces using React.js, often collaborating closely with front-end and back-end developers. Tasks may include fixing bugs, implementing new features, writing unit tests, and participating in code reviews. Interns frequently get the opportunity to work on real-world projects, such as building internal tools, updating existing applications, or contributing to documentation. This hands-on experience helps interns gain practical skills and insight into agile development workflows.

What skills and qualifications are needed to thrive as a React intern?

To thrive as a React Intern, you need a solid understanding of JavaScript, HTML, CSS, and foundational knowledge of React.js concepts, generally supported by coursework or personal projects. Familiarity with version control systems like Git, basic RESTful API integration, and code editors such as VS Code is highly valuable. Effective problem-solving, eagerness to learn, and strong communication skills help interns stand out when collaborating with teams and receiving feedback. These skills and qualities are crucial for building functional user interfaces and adapting quickly in a dynamic, team-based development environment.

What is the difference between React Intern vs React Developer?

AspectReact InternReact Developer
Required CredentialsTypically pursuing or recently completed relevant coursework or degreeProfessional experience, often with a portfolio of projects
Work EnvironmentInternship programs, entry-level teams, learning-focusedFull-time or contract roles, responsible for building and maintaining React applications
Employer & Industry UsageStartups, tech companies, agencies seeking entry-level talentCompanies across industries developing web applications with React

The main difference between a React Intern and a React Developer lies in experience and responsibilities. Interns are usually students or recent graduates gaining hands-on experience, while React Developers are experienced professionals responsible for developing and maintaining React-based projects. Internships serve as a stepping stone into a React development career, whereas React Developers are expected to have a deeper understanding and practical skills in React development.

What are the most commonly searched types of React jobs in California? The most popular types of React jobs in California are:
What cities in California are hiring for React Intern jobs? Cities in California with the most React Intern job openings:
Infographic showing various React Intern 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.

Founding Engineer Intern

Clera

San Francisco, CA โ€ข On-site

Full-time

Re-posted 17 days ago


Job description

About the Role

A fast-growing, pre-seed AI startup in the talent and recruiting space is looking for a Founding Engineer Intern to join their founding team in San Francisco. You'll work directly with the CTO to ship features daily and help build a fully agentic system that automates headhunting end-to-end. This role puts you at the center of rapid experimentation with real ownership and high-impact outcomes — including time in hacker-house environments in Latin America.

What You'll Do
  • Build and ship features daily alongside the CTO to automate the recruiting process end-to-end.

  • Own full end-to-end development — from ideation to production — for core product features.

  • Collaborate with the founding team to design and ship components of an agentic AI system.

  • Talk to users and measure impact on hiring speed to drive rapid iteration.

  • Thrive in a founder-paced, high-output environment with daily feedback loops.

What We're Looking For

Required:

  • At least 6 months of experience with React and TypeScript in a production environment.

  • Hands-on experience with Cursor, Supabase, Prisma, and Typesense in a production React/TypeScript stack.

  • Full-stack focus — not an ML engineer and not overly specialized in a single language (e.g. Python or C++).

  • Strong ownership mindset with the ability to drive features from ideation to production independently.

  • Currently enrolled in or pursuing a degree in Computer Science, Software Engineering, or a related field.

  • Something outstanding about your profile — top GPA, strong university, impressive projects, or an active GitHub.

  • Experience working in entrepreneurial, fast-paced, scrappy environments.

  • Willingness to work 7 days/week and participate in hacker-house setups in LatAm.

Nice to Have:

  • Portfolio or sample projects demonstrating full-stack development and open-source contributions.

Location

Based in San Francisco, CA. On-site role with hacker-house periods in Latin America. Visa sponsorship is available.