251 frontend javascript developer jobs at 146 companies in California

2mo
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Frontend Developer
El Segundo, California, United States
$126k-$138k/yr OnsiteFull Time
KBR
KBRNYSE: KBR: Provides engineering, technology, and professional services for global markets.
7+ YOE7+ years frontend development, strong Angular (2+), TypeScript/JavaScript, HTML5/CSS3, REST/GraphQL, Git, Agile, local to LA area or willing to relocate.
Angular, TypeScript, JavaScript, HTML5, CSS3/SASS, RxJS, NgRx, REST, GraphQL, Git, Jira, Confluence, CI/CD
1w
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Frontend Developer
San Francisco, California, United States
RemoteFull Time
CareerSwift
CareerSwift: AI-powered recruitment and job search automation platform
3+ YOE3+ years frontend experience with JavaScript/TypeScript, HTML, CSS, experience with modern frameworks, REST/GraphQL APIs, Git, strong communication and testing skills.
JavaScript, TypeScript, HTML, CSS, React, Vue, Angular, REST, GraphQL, Git, Next.js
1mo
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Frontend Engineer, Platform
New York City or San Francisco or Seattle
$182k-$250k/yr HybridFull Time
Grow Therapy
Grow Therapy: Platform connecting mental health providers with patients and insurance.
5+ YOE5+ years frontend or full-stack experience; building/scaling design systems and shared frontend infrastructure; fluent in JavaScript/TypeScript, React, Next.js, CSS systems; strong accessibility (WCAG), performance, and communication skills.
JavaScript, TypeScript, React, Next.js, CSS systems, Turborepo, Nx, Vite, WCAG, Gem
1mo
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Senior Frontend Engineer
San Francisco or New York City or United States
HybridFull Time
Beast Industries
Beast Industries: Produces digital media and consumer goods for MrBeast brands.
8+ YOE8+ years software engineering with deep frontend experience in JavaScript/TypeScript, performance optimization, accessibility, AI-assisted tooling, architecture ownership, and mentoring peers.
JavaScript, TypeScript, React, Vue, Angular, AI coding agents, CI/CD
3w
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Staff Frontend Engineer
San Francisco, California, United States
$190k-$250k/yr HybridFull Time
Lunar
Lunar: Building an AI-native information system for hospitals.
10+ YOE10+ years frontend engineering experience; expertise with TypeScript, JavaScript, React, HTML/CSS, GraphQL; experience building real-time, performant UIs; familiarity with Elixir, Phoenix, Postgres, and AWS preferred.
TypeScript, JavaScript, React, HTML, CSS, GraphQL, Elixir, Erlang, Phoenix, Postgres, AWS
4w
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Frontend Engineer, Observability
San Francisco, California, United States
$170k-$190k/yr OnsiteFull Time
Postman
Postman: Platform for building, testing, and managing software APIs.
3+ YOE3+ years frontend experience; strong implementation and product sense; proven delivery with independent projects; experience with modern JavaScript frameworks/libraries such as React and TypeScript; substantial overlap with Pacific Time (US-based).
React, TypeScript, JavaScript
3mo
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Frontend Engineer
Menlo Park, California, United States
$115k-$145k/yr OnsiteFull Time
Ventrilo
Ventrilo: Browser-based AI assistant for workflow and writing productivity.
1+ YOE1+ years software engineering; strong JS/TS and Python; React knowledge; experience with web APIs and CSS; on-site in Menlo Park; passionate about building secure, scalable frontend systems.
TypeScript, JavaScript, Python, Google Cloud, Cloudflare Workers, serverless, React, Tailwind, CSS, DOM
1mo
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Lead Frontend Engineer
New York City or Chicago or Detroit or Los Angeles
$94k-$140k/yr HybridFull Time
Dentsu
DentsuTokyo Stock Exchange: 4324: Providing global advertising, digital marketing, and media communications services.
6+ YOE6+ years frontend experience, 4+ years production React.js and Next.js, strong JavaScript/TypeScript (ES6+), API integration (REST/GraphQL), performance and accessibility (Lighthouse, Core Web Vitals, WCAG), testing (Jest/Cypress/Playwright), CI/CD and cloud deployment experience.
JavaScript, TypeScript, React.js, Next.js, ES6+, REST, GraphQL, Lighthouse, Core Web Vitals, WCAG, Contentful, Optimizely, Sitecore, Sanity, Jest, Cypress, Playwright, Vercel, Netlify, AWS
1mo
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Mid/Senior Frontend Developer
Krakow or San Francisco or Los Angeles or New York City or London or Singapore or Beijing or Seoul or Tokyo or Vancouver or Poland or North America or Europe or Asia or Africa or South America
RemoteFull Time
Sensor Tower
Sensor Tower: Provides digital market intelligence and mobile app analytics software.
4+ YOE4+ years engineering experience with JavaScript/TypeScript and React; ability to architect scalable frontend systems, design state management, write tests (Jest/Playwright), optimize web performance, mentor peers, and partner with product.
JavaScript, TypeScript, React, TanStack Query, React Router, Zustand, Redux, MobX, Next.js, Jest, Playwright, Highcharts, Ruby on Rails, Angular, ClickHouse, MongoDB, PostgreSQL, GitHub
2w
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Senior Frontend Engineer - Alarms
San Mateo, California, United States
$130k-$280k/yr OnsiteFull Time
Verkada
Verkada: Sells integrated AI-powered cloud physical security hardware and software.
5+ YOE5+ years building production web applications with JavaScript and modern frontend frameworks (preferably React); strong UI architecture, debugging, API experience; BS/MS in CS or related field.
React, JavaScript, TypeScript, Go, AWS
4w
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Frontend Software Engineer
Costa Mesa, California, United States
$129k-$220k/yr OnsiteFull Time
Anduril Industries
Anduril Industries: Defense technology building autonomous military hardware and software.
4+ YOEBachelor's in a technical field, 4+ years professional frontend experience with Javascript/Typescript/React, experience building data- or map-intensive UIs, eligible for U.S. Secret clearance, willing to travel up to 25%.
Javascript, Typescript, React, Lattice OS
1d
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Senior Staff Engineer - Frontend
San Francisco or Hyderabad
OnsiteFull Time
Plane
Plane: Open-source project management platform for planning and tracking work.
8+ YOE8+ years building large-scale web applications with TypeScript, JavaScript, React, strong frontend architecture, real-time collaboration, performance optimization, and leadership experience.
TypeScript, JavaScript, React.js, HTML5, CSS3, Next.js, Tailwind CSS, MobX, REST, GraphQL, WebSockets, ProseMirror, Tiptap, Electron, Python, Go, Elixir, PostgreSQL, Redis, AWS, Kubernetes, Rancher, DataDog, Sentry, GitHub, Slack, Plane, Figma, Whimsical
3mo
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Frontend Engineer Intern
Santa Clara, California, United States
$25-$60/hr OnsiteInternship
Dexmate
Dexmate: Building AI-powered mobile humanoid robots for industrial automation.
Pursuing a degree in CS/SE or related field; strong HTML/CSS/JavaScript/TypeScript; experience with React or Vue; REST APIs; collaborative tools; AI-assisted development tools; interest in AI agents and real-time data visualization; basic CI/CD concepts; self-learning; async and sync collaboration.
React, Vue.js, JavaScript, TypeScript, HTML, CSS, REST APIs, GitHub, Discord, Slack, Notion, Copilot, Cursor, Claude Code
1mo
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Frontend Engineer (Los Altos)
Los Altos, California, United States
OnsiteFull Time
PhnyX Lab
PhnyX Lab: AI-native operating system for biopharma knowledge work.
4+ YOE4+ years frontend experience with React, TypeScript, Tailwind CSS; experience owning frontend quality, building AI/LLM UX (streaming, citations), strong design-to-code skills, and English proficiency.
React, TypeScript, Tailwind CSS, JavaScript, Claude Code, Cursor, Next.js, Vite, React Query, Zustand, Redux, Storybook, Playwright, Vitest
2w
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Multimedia Arch Senior Frontend Engineer
San Jose, California, United States
$213k-$450k/yr OnsiteFull Time
TikTok
TikTok: Global short-form video hosting and social media platform.
5+ YOEBA/BS in CS or related, 5+ years frontend experience, expert TypeScript/JavaScript, React, deep browser and multimedia knowledge, AI/ML integration experience, strong communication and problem-solving.
TypeScript, JavaScript, ES6+, React, WebAssembly, WebGPU, ONNX Runtime Web, Transformers.js, MediaPipe, WebCodecs, MSE, EME, WebGL, WebRTC, Web Audio API, WebNN, Web Workers, Golang
2mo
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Software Engineer, Frontend
San Francisco, California, United States
$180k-$310k/yr HybridFull Time
Gamma
Gamma: AI platform that generates presentations, documents, and websites from text.
3+ YOE3+ years building production web apps with JavaScript, React; real-time collaboration; WebSockets; CRDTs or OT; strong UI focus; Nice to have rich text editor experience.
JavaScript, React, WebSockets, CRDTs, Operational Transformation, APIs
3w
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Front End Developer
Santa Monica or United States
RemoteFull Time
Helios Worldwide
Helios Worldwide: Global agency providing AI-powered marketing and workforce management solutions.
5+ YOECollege graduate in CS or related field (or equivalent experience), 5+ years development experience, proficiency in Vue/React, HTML, JavaScript, CSS, Git, state management libraries, cloud deployment experience; PHP/WordPress a plus.
Vue.js, React.js, HTML, JavaScript, CSS, Git, Pinia, Zustand, Recoil, Redux, PHP, WordPress, GCP, DigitalOcean, AWS
3mo
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Staff Frontend Engineer (eBay Live)
San Jose, California, United States
$197k-$263k/yr HybridFull Time
eBay
eBayNASDAQ: EBAY: Global online marketplace for buying and selling diverse products.
8+ YOE8+ years designing frontend systems; React, TypeScript, Node.js; SSR; REST/GraphQL; CSS (BEM), Webpack, Express; leadership, mentorship, and cross-team collaboration.
JavaScript, TypeScript, React, Node.js, Server-side rendering, Material UI, Express.js, REST, GraphQL, Webpack, CSS (BEM)
1d
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Principal Frontend Engineer (Full Stack)
Oakland, California, United States
HybridFull Time
VuMedi
VuMedi: Online video platform for medical education and physician collaboration.
8+ YOE8+ years building modern web applications; strong frontend expertise with React and TypeScript; backend experience with Python and Django; experience integrating LLMs and deploying on AWS.
React, TypeScript, JavaScript, Python, Django, LLMs, AWS, RESTful APIs
1mo
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Front End Developer - Remote
Irvine, California, United States
RemoteFull Time
Great Work Perks
Great Work Perks: Corporate employee discount and engagement platform provider.
2+ YOE2+ years mobile web development; strong HTML5, CSS3, JavaScript; React.js experience; responsive/mobile-first and UI/UX skills; portfolio and Git proficiency.
HTML5, CSS3, JavaScript, React.js, Git