527 react frontend developer jobs at 314 companies in California

1mo
Save
Mark Applied
Hide
Frontend Developer (React)
San Francisco, California, United States
RemoteFull Time
CareerSwift
CareerSwift: AI-powered recruitment and job search automation platform
Basic React experience, comfortable with HTML/CSS/JavaScript, Git proficiency, English communication skills, able to work independently. Side projects and coursework accepted.
React, HTML, CSS, JavaScript, Git
3mo
Save
Mark Applied
Hide
Frontend Engineer
San Francisco or United States
$100k-$250k/yr OnsiteFull Time
Hercules
Hercules: AI-powered platform for building applications and websites.
5+ YOESenior or staff frontend engineer with strong TypeScript/React, UI/UX focus, monorepo experience.
TypeScript, React, AI SDK, PostgreSQL, Redis, ClickHouse, Tailwind CSS, Infrastructure as Code (CDK, Terraform), Docker, Observability (Otel), Hono, Drizzle ORM, Temporal, AWS, Cloudflare, OpenAI API, Anthropic, Google AI
2mo
Save
Mark Applied
Hide
Senior Front End Engineer (React/Next.js)
Huntington Beach, California, United States
$150k-$165k/yr OnsiteFull Time
Applied Business Software
Applied Business Software: Provides loan origination and servicing software for private lenders.
5+ YOE5+ years frontend experience with React/Next.js, TypeScript; strong UI/UX, API integration, and performance optimization.
React, Next.js, TypeScript, MUI, Zustand, React Query, CSS, AI tooling
3mo
Save
Mark Applied
Hide
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
Save
Mark Applied
Hide
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
2w
Save
Mark Applied
Hide
Founding Frontend Engineer
San Francisco or New York
OnsiteFull Time
Ciridae
Ciridae: Develops AI-native operating systems for real-economy businesses.
4+ YOE4+ years building production frontend with React and TypeScript, strong UX instincts, ability to translate vague requirements into polished interfaces.
React, TypeScript
1mo
Save
Mark Applied
Hide
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
1mo
Save
Mark Applied
Hide
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
3mo
Save
Mark Applied
Hide
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
3w
Save
Mark Applied
Hide
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
3mo
Save
Mark Applied
Hide
Principal Frontend Engineer
Los Angeles, California, United States
$190k-$240k/yr OnsiteFull Time
Arena Club
Arena Club: Digital marketplace and vaulting service for sports collectibles
8+ YOE8+ years frontend experience; 3+ years leading or architecting projects; strong React/TypeScript; knowledge of state management and build tools; testing, CI, DevOps familiarity; cloud, API design a plus.
React, TypeScript, Redux, MobX, Webpack, Babel, Vite, CI/CD
1mo
Save
Mark Applied
Hide
Frontend Engineer (SF)
San Francisco or Cambridge
HybridFull Time
General Medicine
General Medicine: An online store for upfront-priced medical care and consultations.
3+ YOE3+ years building production React apps, strong TypeScript and Next.js experience, UI polish, frontend performance, accessibility, REST API experience; comfortable with Rails/Postgres, SQL, and cross-functional collaboration.
React, TypeScript, Next.js, Ruby on Rails, Postgres, SQL, RESTful APIs
4w
Save
Mark Applied
Hide
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
1d
Save
Mark Applied
Hide
Senior Frontend Engineer
San Carlos, California, United States
$175k-$215k/yr OnsiteFull Time
1X
1X: Manufacturing safe, general-purpose humanoid robots for home and work.
6+ YOE6+ years frontend experience, BS in CS or related, strong TypeScript and React skills, experience building data-intensive dashboards and integrating REST/GraphQL/real-time streams; strong communication and system design ability.
TypeScript, React, REST, GraphQL, WebSockets, gRPC, AWS, Kubernetes
1mo
Save
Mark Applied
Hide
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
3mo
Save
Mark Applied
Hide
Frontend Engineer
San Francisco or Golden or Toulouse
$140k-$190k/yr OnsiteFull Time
Loft Orbital
Loft Orbital: Deploy and operate satellite missions for organizations and governments.
Proficiency in TypeScript, HTML, CSS; experience with Vue or React; SPA development; GraphQL; testing (Vitest/Jest/Cypress).
Vue.js, TypeScript, HTML, CSS, GraphQL, Vitest, Jest, Cypress, Web Components, Lit
3mo
Save
Mark Applied
Hide
Senior AI Frontend Engineer
San Francisco or San Francisco County
$175k-$275k/yr OnsiteFull Time
Klarity
Klarity: Uses AI to map, structure, and automate enterprise workflows.
4+ YOE4+ years shipping production-grade frontend products; strong React/TypeScript; Next.js; Tailwind; portfolio and GitHub; CS degree not required.
React, Next.js, TypeScript, Tailwind, Cursor, Claude Code, v0.dev, Lovable
2mo
Save
Mark Applied
Hide
Senior Frontend Engineer (Team Lead)
Redwood City, California, United States
$188k-$250k/yr OnsiteFull Time
Meltwater
Meltwater: Global media intelligence and social analytics platform for businesses.
Expertise in React and TypeScript; experience leading frontend teams; ownership of large-scale frontend systems; experience with GraphQL/REST; strong debugging; independent and proactive.
React, TypeScript, GraphQL, REST, Next.js
1mo
Save
Mark Applied
Hide
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
3mo
Save
Mark Applied
Hide
Principal Software Engineer - Frontend, Developer Experience
San Francisco or Phoenix or Denver or Austin or Jacksonville or Bridgeport or Boston or New York City or Atlanta
RemoteFull Time
Palo Alto Networks
Palo Alto NetworksNASDAQ: PANW: Provides enterprise-grade network, cloud, and endpoint security software.
5+ YOEDevelop frontend UIs with TypeScript/React; collaborate with product/design; contribute to architecture and testing; mentor colleagues.
TypeScript, React, GraphQL, Node.js