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React Intern Jobs in California (NOW HIRING)

BAE Systems

Technical Intern 3

San Diego, CA · On-site

$17.75 - $23/hr

As a Software Engineer Technical Intern, you will join a team of engineers supporting software ... Your internship may include the opportunity to work with new client-based frameworks like REACT ...

IXL Learning

Software Engineer, Intern

San Mateo, CA · On-site

$29 - $46/hr

As a Software Engineer Intern, you'll be involved in all aspects of the development process ... TECHNOLOGY The technologies that we use include Java, Python, Typescript, AWS, React Native ...

Serval Inc

Software Engineer Intern

San Francisco, CA · On-site

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 ...

Gumloop

Design Engineer Intern

San Francisco, CA · On-site

What we're working on - Changelog Role Overview We're looking for a Design Engineering Intern to ... Hands-on experience with TypeScript, React, and modern frontend development, through coursework ...

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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 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 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 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:

React Intern jobs near you
Infographic showing various React Intern job openings in California as of August 2026, with employment types broken down into 1% As Needed, 87% Full Time, 9% Part Time, and 3% Contract. Highlights an 87% Physical, 3% Hybrid, and 10% Remote job distribution.

Frontend Engineer Intern (6 month internship)

Centerfield

Los Angeles, CA • On-site

Internship

Posted 29 days ago

Job description

Hi, We're Centerfield!
Supercharged customer acquisition. Centerfield delivers outcome-based digital marketing solutions and personalized omnichannel experiences for the world's leading brands. Powered by our proprietary Dugout platform, Centerfield acquires customers at scale for leading residential service, insurance, e-commerce, and B2B brands. Centerfield's digital experiences and digital brands, such as Business.com and BroadbandNow.com, reach more than 150 million in-market shoppers annually. Centerfield is headquartered in Silicon Beach and is proud to be recognized by Built in LA as a Best Place to Work in Los Angeles.
The Opportunity...
As a Frontend Engineer Intern at Centerfield, you'll join our engineering team building intuitive, high-performance consumer-facing web interfaces used by millions of shoppers. You'll ship real features - building new applications from scratch and extending or redesigning existing products, contributing to high-traffic sites like Savings.com.
Our team practices AI-first development: engineers act as architects who direct AI agents, custom skills, and automated workflows to deliver production software. You'll learn to go beyond out-of-the-box tools like Claude Code or Codex - building custom agents, domain knowledge systems, and review processes that turn AI into a force multiplier. We care less about clever code and more about delivering business value.
How You'll Contribute...
  • Build and ship consumer-facing web applications and features, from greenfield builds to redesigns of existing high-traffic sites
  • Develop responsive, accessible front-end experiences using React, Next.js, and TypeScript, integrating seamlessly with back-end APIs (Node.js, Java)
  • Use and extend our custom AI development harness: agents, skills, and workflow commands to accelerate delivery
  • Experiment with new ways to apply AI agents to real engineering problems, and share what works with the team
  • Collaborate with product, design, and engineering to turn business goals into shipped features
  • Participate in the full software development lifecycle: design, build, review, ship, iterate

What We're Looking For...
  • Genuine curiosity and open-mindedness about AI-driven development. You actively experiment with AI agents and tools, and can show us something cool you've built with them
  • Solid understanding of modern front-end development: React, JavaScript/TypeScript, HTML5, and CSS/Tailwind.
  • Exposure to frameworks and runtimes like Next.js and Node.js
  • Understanding of APIs and how front-ends talk to back-end services
  • Knowledge of software fundamentals: source control, debugging
  • Rising seniors or new graduates (update year as needed)
  • Local to Playa Vista HQ and willing to come into the office 3 days a week
  • Pursuing a degree in Computer Science or a relevant field

Bonus Points!
  • A portfolio, repo, or demo of something you built primarily with AI agents - bonus if you customized the workflow (custom agents, skills, prompt systems, MCP servers, evals)
  • Experience with cloud platforms (GCP or AWS)
  • Understanding of REST APIs and web performance
  • Exposure to Vercel, Docker, or modern deployment tooling

Intern Life at Centerfield...
  • This is a hybrid position, and employees are expected to work in our Playa Vista, CA office every Tuesday, Wednesday & Thursday.
  • Outside patio overlooking Playa Vista + cabanas, firepits & working grills.
  • Breakroom supplied with games, couches, workout equipment + weekly in-office exercise classes hosted by professional instructors (yoga, kickboxing & circuit training).
  • Paid charity and volunteer days (local mentor programs, adopt a pet, beach cleanup, etc.).
  • Unlimited free snacks and drinks around the office!
  • Monthly happy hours, catered Thursday lunches.
  • Award-winning culture & unprecedented team spirit (featured in LA Business Journal & Built In LA Best Places to Work).
  • Monthly team outings (ball games, casino night, hikes, etc.).
  • Career growth - we enjoy promoting from within

Please Note: This internship is an immediate opening and is not tied to a traditional spring or summer internship program. We are actively interviewing candidates who are available to begin in the near future, with the exact start date determined based on candidate availability and business needs.
#LI-Hybrid
#LI-AA1
AI & Interview Policy
At Centerfield, we use AI tools internally to support efficiency and fairness in our hiring process, including resume screening and administrative tasks.
Candidates are welcome to use AI tools ethically to prepare for interviews, such as practicing responses or researching questions. However, all responses during the interview process should reflect your own knowledge, experience, and judgment.
The use of AI tools to generate responses during live interviews, technical assessments, or written submissions is not permitted unless explicitly stated otherwise.
To learn more, visit us Here.
Interviews will take place after resumes have been screened for the minimum requirements. Please note that this position is not restricted solely to the responsibilities listed above and that the job scope and responsibilities are subject to change.
For more information about our collection, use, and disclosure of your personal information in connection with our evaluating your candidacy, please visit our Privacy Policy at https://www.centerfield.com/privacy-policy/.
Centerfield Media is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, age, religion, sex, national origin, disability, protected veteran status, or any other characteristic protected under federal, state or local law.

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