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104 frontend web developer jobs at 76 companies in Union City, CA

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Lead Software Engineer, Frontend/Web App
San Carlos, California, United States
$185k-$260k/yr HybridFull Time
Beacon AI
Beacon AI: Developing an AI-powered-pilot for safer flight operations.
5+ YOE5+ years building high-performance web apps with React, TypeScript, and modern web standards; strong ownership, mentorship, and frontend performance optimization skills.
React, TypeScript, JavaScript, HTML, CSS, Mapbox, Cesium
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2mo
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Principal Front-End Web Developer
Sunnyvale or United States
$148k-$180k/yr RemoteFull Time
Fortinet
FortinetNASDAQ: FTNT: Develops and sells cybersecurity software and network security appliances.
5+ YOE5+ years front-end web development; TypeScript/SCSS; HTML/CSS/JavaScript (ES6); AJAX/Promises; Vue or React; quick learner; strong problem-solving; remote collaboration.
TypeScript, SCSS, HTML, CSS, JavaScript, ES6, AJAX, Promises, Vue, React, Python, C, Cython
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2mo
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Front-End Web Developer
New York or Washington or Seattle or Miami or San Francisco
$85k-$100k/yr RemoteFull Time
Socure
Socure: Provide AI-driven identity verification and fraud prevention software.
4+ YOE4+ years front-end development; HTML, CSS, JavaScript/TypeScript; React; design-focused; experience with headless CMS (Contentful); strong design sensibility.
React, HTML, CSS, JavaScript, TypeScript, Contentful, Sanity, Prismic, Storyblok
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3mo
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Frontend Engineer
San Francisco or New York City
OnsiteFull Time
Frec
Frec: Financial platform providing direct indexing and automated investment services.
2+ YOEFrontend engineering with deep focus on web frontend; collaboration with product/design; experience with TypeScript/Node backend and AWS is a plus.
TypeScript, Node.js, Python, PostgreSQL, Redis, AWS, GraphQL
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1mo
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Front End Web Developer Manager
Livingston or New York or Sunnyvale or San Francisco or Bellevue or Dallas
$115k-$168k/yr OnsiteFull Time
CoreWeave
CoreWeaveNASDAQ: CRWV: Cloud platform providing GPU-accelerated infrastructure for AI workloads.
10+ YOE10+ years front-end experience with HTML, CSS/SCSS, JavaScript and modern frameworks (React, Next.js, Vue). Experience with large-scale site migrations, component libraries, Figma handoffs, Git/CI-CD, accessibility, SEO, and web performance.
HTML, CSS/SCSS, JavaScript, React, Next.js, Vue, Figma, Contentful, Webflow, HubSpot, WordPress, Wix, Git, CI/CD
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1mo
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Senior Frontend Engineer - Web Platform
San Mateo, California, United States
$130k-$280k/yr OnsiteFull Time
Verkada
Verkada: Sells integrated AI-powered cloud physical security hardware and software.
4+ YOE4+ years front-end or web platform experience; expertise with React, TypeScript, modern web tooling, microfrontend architectures, CI/CD pipelines, and automated testing; degree in CS or related field.
React, TypeScript, Webpack, Vite, GitHub Actions, GitLab CI, CircleCI
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3mo
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Frontend Engineer
San Francisco, California, United States
HybridFull Time
Emergent Labs
Emergent Labs: Platform for building production-ready applications using autonomous AI agents.
4+ YOE4-8 years frontend engineering with React.js and TypeScript; large-scale distributed frontend systems; state management; JS/TS, Web APIs; build tools; UI frameworks; REST/GraphQL; testing/CI/CD.
React, TypeScript, Redux, Zustand, Recoil, React Query, Webpack, Vite, Turborepo, Jest, RTL, Cypress, Next.js
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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
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2mo
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Staff Frontend Engineer
Palo Alto, California, United States
$210k-$240k/yr RemoteFull Time
Assured
Assured: Software platform for automating insurance claims processing
Extensive experience building and scaling complex web applications; expert frontend architecture and tooling; AI-assisted development proficiency; strong UX sensibility.
AI tooling, Frontend development tools
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4w
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Frontend Engineer
Toulouse or San Francisco or Golden
OnsiteFull Time
Loft Orbital
Loft Orbital: Deploy and operate satellite missions for organizations and governments.
Proficiency in TypeScript, HTML, CSS, experience with Vue.js or React, SPA development, GraphQL APIs, and unit/integration testing (e.g., Vitest, Jest, Cypress). Web Components and geospatial libraries are a plus.
Vue.js, TypeScript, HTML, CSS, GraphQL, Vitest, Jest, Cypress, Web Components (Lit), Leaflet, Mapbox, CesiumJS
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1mo
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Senior Frontend Engineer
San Francisco or New York
$190k-$300k/yr HybridFull Time
Baseten
Baseten: Scalable infrastructure platform for deploying and serving AI models.
5+ YOE5+ years building production web apps; deep expertise in React and TypeScript; strong product intuition, UX empathy, cross-functional collaboration, and experience with modern frontend tooling.
React, TypeScript, Tailwind CSS, Next.js, WebSockets
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1mo
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Frontend Engineer, Product
New York City or San Francisco or Seattle
$166k-$250k/yr HybridFull Time
Grow Therapy
Grow Therapy: Platform connecting mental health providers with patients and insurance.
5+ YOE5+ years frontend or UX engineering experience; strong visual design judgment; fluent in JavaScript/TypeScript, Next.js, React, and CSS; knowledge of accessibility (WCAG) and web performance; strong prototyping and collaboration skills.
JavaScript, TypeScript, Next.js, React, CSS, WCAG, Gem
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1mo
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Senior Frontend Engineer
San Francisco or Tucson or Dallas
$170k-$230k/yr HybridFull Time
Roger Healthcare
Roger Healthcare: AI clinical documentation platform for home health clinicians.
6+ YOE6+ years frontend experience with deep mobile expertise; production mobile and web app experience; expertise with React/React Native, TypeScript, CI/CD; experience with voice/audio, device integration, offline-first systems, scalable UI architectures.
React, React Native, TypeScript, CI/CD, LLM
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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
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1mo
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Front-End Web Developer, B2B, Marketing Technology
San Francisco or New York City or Washington or United States
$109k-$160k/yr RemoteFull Time
DoorDash
DoorDashNASDAQ: DASH: On-demand delivery platform connecting consumers with local merchants.
3+ YOE3-6 years front-end experience; strong HTML5, CSS3, JavaScript (ES6+); React/NextJS and TypeScript; accessibility (WCAG), Contentful/Storybook, Vercel, Git, CI/CD, SEO and analytics experience.
HTML5, CSS3, JavaScript (ES6+), React, NextJS, Vue.js, Angular, TypeScript, Tailwind, Vercel, Contentful, Storybook, Git, Buildkite, Webpack, Vite, Turborepo, Google Tag Manager, JSON-LD, Jira, Confluence, Cursor, Claude Code, MCPs
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20h
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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
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17h
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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
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3w
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Senior Frontend Engineer (Full-Stack)
Sunnyvale, California, United States
$150k-$240k/yr OnsiteFull Time
Applied Intuition
Applied Intuition: Developing software and simulation infrastructure for autonomous vehicles.
Experienced full-stack web engineer with strong frontend UI/UX skills, interest in 2D/3D spatial reasoning, ability to work with live/simulated data, and U.S. citizenship with eligibility for security clearance.
React, Typescript, Angular
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4w
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Senior Frontend Engineer
San Francisco or California
$175k-$225k/yr HybridFull Time
Weave Bio
Weave Bio: AI platform for drug development regulatory workflows.
5+ YOE5+ years building web apps with React and TypeScript; experience with real-time collaboration, strong product instincts, startup experience, and productive use of AI-assisted engineering tools.
React, TypeScript, Cursor, Claude, Slate, ProseMirror, Yjs, Liveblocks, CRDTs
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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
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