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Frontend Developer Internship Jobs in California

Armadin

Frontend Engineer, Internship

Palo Alto, CA · On-site

$88 - $120/hr

The Role As a Frontend Engineer Intern on the Product & UX/UI team, you'll help turn complex ... We're a small, fast-moving team, so interns get real ownership: you'll work across the stack, from ...

New

Palantir

Maximizes frontend developer productivity across the entire frontend development stack, from the developer experience in the IDE to the final user experience in the browser. Think: the core ...

D3

Frontend Engineer - New Grad

Los Angeles, CA · On-site

As a Frontend Engineer (Entry Level), you'll work closely with senior engineers to design, develop ... Previous coursework, projects, or internships involving blockchain, NFTs, or dApps. Why D3, Why Now?

D3

Frontend Engineer - New Grad

Los Angeles, CA · On-site

As a Frontend Engineer (Entry Level), you'll work closely with senior engineers to design, develop ... Previous coursework, projects, or internships involving blockchain, NFTs, or dApps. Why D3, Why Now?

D3

Frontend Engineer - New Grad

Los Angeles, CA · On-site

As a Frontend Engineer (Entry Level), you'll work closely with senior engineers to design, develop ... Previous coursework, projects, or internships involving blockchain, NFTs, or dApps. Why D3, Why Now?

Clerkie

Software Engineer Internship

San Francisco, CA · On-site +1

$80/hr

You'll work across the full stack, collaborating with engineers on frontend, backend, and ... This isn't just another internship - it's an investment in your growth. The ideal Clerkie team ...

Clerkie

Software Engineer Internship

Los Angeles, CA · On-site +1

$80/hr

You'll work across the full stack, collaborating with engineers on frontend, backend, and ... This isn't just another internship - it's an investment in your growth. The ideal Clerkie team ...

Ramp

Software Engineer, Frontend

San Francisco, CA · On-site

$120 - $150/hr

Inspire and mentor less experienced engineers and interns What You'll Need * Minimum of 2 years of frontend engineering experience preferred * Proficiency in JavaScript and React * Knack for getting ...

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Frontend Developer Internship information

See California salary details

$41.9K

$109K

$153.5K

How much do frontend developer internship jobs pay per year?

As of Sep 5, 2026, the average yearly pay for frontend developer internship in California is $108,967.00, according to ZipRecruiter salary data. Most workers in this role earn between $102,600.00 and $119,400.00 per year, depending on experience, location, and employer.

What is a frontend developer internship?

A Frontend Developer Internship is a temporary position designed to give aspiring developers hands-on experience building and designing user interfaces for websites and web applications. Interns typically work with HTML, CSS, and JavaScript, and may use frameworks like React or Angular. They collaborate with designers and backend developers to improve the user experience. This role helps interns develop professional coding skills and gain industry knowledge while working on real projects.

What kind of projects and responsibilities can I expect during a frontend developer internship?

As a Frontend Developer Intern, you'll typically work on real-world projects such as building user interfaces, fixing bugs, or contributing to new features under the guidance of experienced developers. Your daily tasks may include writing and testing code, participating in code reviews, and collaborating with designers and backend teams to deliver a seamless user experience. Interns often take part in agile team meetings and are encouraged to share ideas and ask questions. Working closely with your colleagues provides valuable mentorship and a chance to build both technical and teamwork skills that are vital for future roles in frontend development.

What are the key skills and qualifications needed to thrive in a frontend developer internship?

To thrive as a Frontend Developer Intern, a solid understanding of HTML, CSS, and JavaScript, along with a foundational knowledge of responsive design and web accessibility, is essential. Familiarity with frameworks like React or Angular, code versioning tools such as Git, and hands-on project experience are typically expected; relevant coursework or certifications can provide an edge. Strong problem-solving abilities, effective communication, and a willingness to learn in a collaborative environment are key soft skills. These qualities ensure interns can quickly contribute to real projects, adapt to the team's workflow, and develop the professional skills required for a successful tech career.

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 Internship jobs in California?

For Frontend Developer Internship jobs in California, the most frequently searched job titles are:

What job categories do people searching Frontend Developer Internship jobs in California look for?

The top searched job categories for Frontend Developer Internship jobs in California are:

What cities in California are hiring for Frontend Developer Internship jobs?

Cities in California with the most Frontend Developer Internship job openings:

Frontend Developer Internship jobs near you
Infographic showing various Frontend Developer Internship job openings in California as of August 2026, with employment types broken down into 85% Full Time, 2% Part Time, and 13% Contract. Highlights an 80% Physical, 6% Hybrid, and 14% Remote job distribution, with an average salary of $108,967 per year, or $52.4 per hour.

Frontend Engineer, Internship

Armadin

Palo Alto, CA • On-site

$88 - $120/hr

Other

Medical, Dental, Vision, Retirement, PTO

Posted yesterday

New

Job description

About Us

At Armadin, we're a group of engineers, researchers, and hackers on a mission to redefine what proactive security can do in the AI era. Cyberattacks are becoming autonomous and relentless and we believe defending against threats before they materialize is one of the most powerful ways to protect the institutions the world depends on.

We're building autonomous proactive security from the ground up, reinforcing the tradecraft of elite red teamers into purpose-built security models and agents that discover risk and remediate it before organizations are breached.

Led by Kevin Mandia, founder of Mandiant ($5.4B exit to Google), our team brings together researchers and engineers from Google, xAI, Meta, Stanford, and MIT to reinvent security for an adversary that never sleeps.

The Role

As a Frontend Engineer Intern on the Product & UX/UI team, you'll help turn complex security data and graph information into clear, navigable interfaces that make sophisticated, AI-integrated security workflows accessible to the people relying on them. You'll ship production code alongside full-time engineers from day one, paired with a mentor invested in your growth, and see your work deployed to real customers rather than left in a sandbox.

We're a small, fast-moving team, so interns get real ownership: you'll work across the stack, from polished React interfaces to the full-stack systems that power them, and you'll partner directly with founders, product, and design to understand the problems worth solving.

What You'll Do

  • Transform complex security data and graph information into clear, navigable user interfaces.

  • Collaborate with product and design to make sophisticated, AI-integrated security workflows accessible.

  • Contribute to scalable frontend and full-stack systems, balancing polish, performance, and reliability.

  • Pair with a dedicated mentor and take part in code reviews and design collaboration.

  • Participate in design reviews, code reviews, and team rituals just like a full-time engineer.

Required

  • Currently pursuing a Bachelor's degree in Computer Science, Software Engineering, Math, or a related technical field, with an expected graduation in 2027 or 2028.

  • Comfortable writing clean, well-tested code and picking up new languages and frameworks quickly.

  • Solid foundation in data structures, algorithms, and distributed systems fundamentals.

  • Prior experience with Python, Go, or with LLM/agent frameworks is a plus.

Nice to Have

  • Experience with data visualization or graph rendering (D3 or similar).

  • Exposure to building products that emphasize reliability and scalability.

  • Open-source contributions, hackathon projects, or independent builds that show initiative.

Technologies We Use

  • Our stack centers on React and TypeScript for the frontend, Node.js and Python for full-stack services, and D3 (or similar) for rendering complex security and graph data.

  • We care more about your ability to learn than the specific frameworks on your resume.

Compensation & Benefits

  • $75 USD/hour, paid on the same cycle as full-time employees.

  • Relocation and housing support for the Palo Alto term.

  • Full health, dental, and vision coverage for the duration of the internship.

  • Daily meals in-office, plus the standard Armadin perks (yes, including the office haircuts).

  • Direct mentorship from senior engineers and regular exposure to founders and leadership.

  • A clear path to a full-time offer for interns who are a strong match.

Transportation and Housing

Relocation and housing support provided for the Palo Alto term.

Benefits & Perks

Full Health, Dental, & Vision Coverage

Meaningful Equity Ownership

In-Office Meals

Haircuts at the Office
Company Sponsored Conferences & Events

401(k), HSA, and FSA Plans

Flexible PTO

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