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Frontend Developer Intern Jobs in California (NOW HIRING)

Phonely Ltd

Software Engineer Intern

San Francisco, CA · On-site

Software Engineer Internship This is a high-impact internship where you'll write real code, ship ... Investigate and troubleshoot real customer issues across frontend and backend systems * Work ...

Instead

Software Engineering Intern

San Francisco, CA · On-site

The Role We're looking for Software Engineering Interns to join our San Francisco team and build ... Vue, Nuxt, TypeScript, and Tailwind CSS on the frontend. Go, Docker on AWS ECS/Fargate, and ...

Clerkie

Software Engineer Internship

San Francisco, CA · On-site +1

$80/hr

About the internship As the newest addition to Team Clerkie, this Software Engineer Intern will ... You'll work across the full stack, collaborating with engineers on frontend, backend, and ...

Etched

PD Intern

San Jose, CA · On-site

Backed by hundreds of millions from top-tier investors and staffed by leading engineers, Etched is ... front-end designs in silicon, helping Etched to improve iteration speed to final signoff. You will ...

Etched

PD Intern

San Jose, CA · On-site

Backed by hundreds of millions from top-tier investors and staffed by leading engineers, Etched is ... front-end designs in silicon, helping Etched to improve iteration speed to final signoff. You will ...

Tenstorrent University Jobs

$50/hr

... top engineers to optimize some of the most advanced silicon in the world. This role is onsite ... Collaborate with front-end, PD, and architecture teams to influence early design decisions

GenBio AI

Software Engineering Intern

Palo Alto, CA · On-site

$8.0K - $10K/mo

A strong coder with excellent skills in modern frontend development, specifically fluent in React ... engineering internships. $8,000 - $10,000 a month Join us as we embark on this journey to redefine ...

GenBio AI

Software Engineering Intern

Palo Alto, CA · On-site

$8.0K - $10K/mo

A strong coder with excellent skills in modern frontend development, specifically fluent in React ... engineering internships. $8,000 - $10,000 a month Join us as we embark on this journey to redefine ...

Etched

DFT Intern

San Jose, CA · On-site

$17.50 - $23.50/hr

You will work across frontend and backend design teams, contribute to DFT verification (including ... Progress towards a Bachelor's, Master's, or PhD degree in electrical engineering, computer ...

Gitar, Inc.

Software Engineer Intern

San Mateo, CA · On-site

Design, develop, and deploy scalable backend and frontend solutions in Rust, JavaScript, and ... Innovate and introduce new technologies to enhance our developer platform. What We're Looking For:

Etched

DFT Intern

San Jose, CA · On-site

$17.50 - $23.50/hr

You will work across frontend and backend design teams, contribute to DFT verification (including ... Progress towards a Bachelor's, Master's, or PhD degree in electrical engineering, computer ...

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Frontend Developer Intern information

What is the difference between Frontend Developer Intern vs Frontend Developer?

AspectFrontend Developer InternFrontend Developer
Required CredentialsTypically pursuing or recently completed a related degree or bootcampBachelor's degree in Computer Science or related field, with professional experience
Work EnvironmentInternship programs, entry-level projects, mentorship-focusedFull-time, professional projects, collaborative teams
Employer & Industry UsageStartups, tech companies, agenciesTech firms, corporations, agencies
Common Search & ComparisonYesYes

The main difference between a Frontend Developer Intern and a Frontend Developer lies in experience, responsibilities, and career stage. Interns are usually students or recent graduates gaining initial industry exposure, while Frontend Developers are experienced professionals handling full project responsibilities.

What does a Frontend Developer Intern do?

A Frontend Developer Intern assists in building and maintaining the user-facing parts of websites or web applications. They typically work with technologies like HTML, CSS, and JavaScript, and may also use frameworks such as React or Angular. Interns collaborate with designers and backend developers to ensure a seamless user experience. Their tasks often include fixing bugs, developing new features, and learning industry best practices.

What types of projects and technologies can I expect to work with as a Frontend Developer Intern?

As a Frontend Developer Intern, you will typically work on real-world web applications or website features, often using frameworks like React, Angular, or Vue.js. You'll collaborate closely with designers and backend developers to implement responsive interfaces and enhance user experience. Common tasks include debugging, writing maintainable code, and participating in code reviews. This role is an excellent opportunity to gain hands-on experience with industry-standard tools, workflows (such as Git and Agile methodologies), and to build a strong foundation for a full-time frontend development career.

What are the key skills and qualifications needed to thrive as a Frontend Developer Intern, and why are they important?

To thrive as a Frontend Developer Intern, you need a solid grasp of HTML, CSS, JavaScript, and basic understanding of responsive web design, typically supported by coursework or personal projects. Familiarity with version control systems like Git, as well as frameworks such as React or Vue.js, can be highly beneficial. Strong problem-solving skills, attention to detail, and a willingness to learn make candidates stand out in this role. These skills are crucial for building user-friendly interfaces, collaborating effectively with teams, and adapting to the fast-paced nature of web development.
What are the most commonly searched types of Frontend Developer jobs in California? The most popular types of Frontend Developer jobs in California are:
What are popular job titles related to Frontend Developer Intern jobs in California? For Frontend Developer Intern jobs in California, the most frequently searched job titles are:
What job categories do people searching Frontend Developer Intern jobs in California look for? The top searched job categories for Frontend Developer Intern jobs in California are:
What cities in California are hiring for Frontend Developer Intern jobs? Cities in California with the most Frontend Developer Intern job openings:
Frontend Developer Intern jobs near you
Infographic showing various Frontend Developer Intern job openings in California as of July 2026, with employment types broken down into 84% Full Time, 5% Part Time, 2% Temporary, and 9% Contract. Highlights an 82% Physical, 3% Hybrid, and 15% Remote job distribution.

Software Engineer Intern

Phonely Ltd

San Francisco, CA • On-site

Full-time

Re-posted 14 days ago

Job description

Software Engineer Internship
This is a high-impact internship where you'll write real code, ship features, and see your work in production.
Note: This is an in-office role, 5 days a week in San Francisco.
What You'll Do
  • Investigate and troubleshoot real customer issues across frontend and backend systems
  • Work closely with customers and internal teams to diagnose bugs, performance bottlenecks, and reliability problems
  • Build internal tooling and dashboards to improve debugging, monitoring, and operational workflows
  • Help monitor production systems and support incident response efforts
  • Assist engineers in identifying root causes and shipping fixes quickly
  • Build and maintain components for high-performance web applications using React and Next.js
  • Collaborate with engineers to integrate APIs, real-time systems, and observability tooling
  • Improve UI/UX by building responsive and user-friendly interfaces
  • Support performance optimization efforts across rendering, caching, and latency
  • Write clean, maintainable, and well-documented code
  • Participate in code reviews, team discussions, and product development

Qualifications
  • Currently pursuing or recently completed a degree in Computer Science or related field
  • Experience with JavaScript/TypeScript and modern frontend frameworks (React preferred)
  • Familiarity with Next.js or willingness to learn quickly
  • Strong problem-solving and debugging skills
  • Comfortable investigating technical issues and working through ambiguous problems
  • Basic understanding of APIs, async programming, and web fundamentals
  • Exposure to full-stack development through projects, coursework, or internships
  • Strong communication skills and ability to work directly with customers and teammates
  • Eagerness to learn quickly in a fast-paced environment

Nice to Have
  • Experience with backend development (Python or Node.js)
  • Familiarity with cloud platforms (AWS, GCP)
  • Experience with observability or monitoring tools
  • Familiarity with databases (Firebase, Supabase, or similar)
  • Interest in AI, real-time systems, infrastructure, or voice technologies

What You'll Gain
  • Real-world experience debugging and operating production systems
  • Hands-on exposure to customer-facing engineering and issue investigation
  • Mentorship from experienced engineers
  • Experience working with modern infrastructure, observability, and AI systems
  • Opportunity to make meaningful contributions to a fast-growing company

Our Tech Stack
  • Frontend: React, Next.js, TypeScript
  • Backend: Python, microservices, async systems
  • Cloud & Infra: AWS, GCP, Kubernetes, Redis
  • Databases: Firebase, Supabase
  • Observability: Datadog, logging, metrics, tracing

Apply