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239 javascript react engineer jobs at 136 companies in Fairfield, CA

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Remote JavaScript/React Engineer
San Francisco or United States
$200-$300/hr RemoteContract
Turing
Turing: AI-powered platform connecting companies with global remote software developers.
3+ YOE3+ years software engineering with systems/infrastructure experience; strong proficiency in JS, Python, C/C++, Rust, or Go; excellent communication and code-evaluation skills; US-based candidates only.
Python, C/C++, Rust, Go, Java, JavaScript, JS, ReactJS
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1mo
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Experienced Backend JavaScript Developer - San Francisco
San Francisco or Israel
HybridFull Time
Bright Data
Bright Data: Provides automated web data collection and proxy infrastructure platforms.
3+ YOE3+ years development experience (2+ in back-end JavaScript). Strong Node.js, system design, and network protocols knowledge. Experience with MongoDB, Express, Kubernetes, RabbitMQ, Cassandra, Snowflake; HTML/CSS/React a plus.
JavaScript, Node.js, MongoDB, Express, Kubernetes, RabbitMQ, Cassandra, Snowflake, HTML, CSS, React
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1w
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Software Engineer (TypeScript/JavaScript)
Boston or Salt Lake City or San Francisco or New York City
RemoteFull Time
Databento
Databento: Provides a pay-as-you-go financial market data platform.
5+ YOEMid/senior engineer experienced with TypeScript/JavaScript, building/maintaining JS client libraries, React/Redux front-ends, native integrations (N-API/node-addon-api/Wasm), and backend work in Python or Rust.
TypeScript, JavaScript, N-API, node-addon-api, Wasm, React, Redux, Vite, Web Workers, WebSockets, Python, Rust, REST API, Storybook, Figma, CI/CD, npm
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1mo
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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
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1d
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Staff Software Engineer, Home Pod (React Native)
San Francisco, California, United States
$192k-$288k/yr HybridFull Time
Hinge Health
Hinge HealthNYSE: HNGE: Digital provider of musculoskeletal care and physical therapy
4+ YOE4+ years software engineering experience, 2+ years React Native, BS in CS/Engineering or equivalent, strong TypeScript/JavaScript skills, experience with server-driven UI and experimentation preferred.
React Native, TypeScript, JavaScript, Node, GraphQL
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2mo
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Senior Software Engineer (Frameworks), JavaScript SDK
San Francisco, California, United States
$190k-$280k/yr HybridFull Time
Sentry
Sentry: Developer platform for error tracking and performance monitoring.
5+ YOE5+ years as a software engineer; deep TypeScript/JavaScript expertise; hands-on with 2+ modern JS frameworks; strong English communication; located in or willing to relocate to San Francisco Bay Area.
TypeScript, JavaScript, React, Next.js, Vue, Nuxt, NestJS, Hono
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1mo
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Staff Full Stack/Back End Engineer (NodeJS+React)
South San Francisco, California, United States
HybridFull Time
Deep Origin
Deep Origin: Platform for scientific simulation and drug discovery research.
10+ YOE10+ years building scalable distributed systems; 5+ years with React/TypeScript/JavaScript/NodeJS; experience with Postgres, MongoDB, Kubernetes, cloud infra, multi-tenant systems; authorized to work in the U.S.; strong system design skills.
React, TypeScript, JavaScript, NodeJS, Postgres, MongoDB, Kubernetes
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5d
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Staff Software Engineer, HR Experiences
Denver or San Francisco or New York City
$199k-$247k/yr HybridFull Time
Gusto
Gusto: Cloud-based payroll and HR software for small businesses.
8+ YOE8+ years software development experience; experience with Ruby on Rails, JavaScript/React; building AI agents; mentoring engineers; compliance-domain experience preferred.
Ruby on Rails, JavaScript, React, Claude Code, Codex
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1mo
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Founding Engineer
San Francisco, California, United States
OnsiteFull Time
Clera
Clera: AI talent agent matching professionals with high-growth startup roles
Proficiency with TypeScript/JavaScript and Python; backend Node.js and REST API experience; frontend React; PostgreSQL and Supabase; experience integrating OpenAI or Claude; ability to own product areas and ship to production rapidly.
TypeScript, JavaScript, Python, Node.js, React, PostgreSQL, Supabase, OpenAI, Claude, REST API
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1mo
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Software Engineer
San Francisco or Seattle
$99k-$162k/yr HybridFull Time
DocuSign
DocuSignNASDAQ: DOCU: Provider of e-signature and intelligent agreement management software.
Bachelor's degree in CS or equivalent, experience with JavaScript/TypeScript and React/Redux, backend API development, identity verification/IDV integration, Git and CI/CD, strong communication and problem-solving.
JavaScript, TypeScript, React, Redux, Git, CI/CD
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1w
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Software Engineer
San Francisco, California, United States
$146k-$235k/yr HybridFull Time
DocuSign
DocuSignNASDAQ: DOCU: Provides electronic signature and agreement management software solutions.
5+ YOE5+ years software development or equivalent degree; experience with backend (C#, Go, Java, Node.js) and frontend (React, Angular, Vue.js, TypeScript, JavaScript); RESTful APIs; cloud, container, CI/CD, and testing experience.
C#, Go, Java, Node.js, React, Angular, Vue.js, TypeScript, JavaScript, RESTful APIs, Azure, AWS, GCP, Kubernetes, Docker, CI/CD, Test-Driven Development (TDD)
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2w
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Senior Frontend Engineer - Access Control
San Mateo, California, United States
$200k-$260k/yr OnsiteFull Time
Verkada
Verkada: Sells integrated AI-powered cloud physical security hardware and software.
7+ YOE7+ years software engineering experience, mastery of JavaScript and React, strong UI/component architecture, understanding of HTTP, degree in CS or related engineering.
JavaScript, React, HTTP
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1mo
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Design Engineer
San Mateo or Provo or United States
RemoteFull Time
GC AI
GC AI: AI-powered legal platform for in-house legal teams.
5+ YOE5+ years front-end experience; expert in HTML, CSS, JavaScript/TypeScript and React; strong design-systems knowledge; experience with UI animations, accessibility, prototyping, and mentoring engineers.
HTML, CSS, JavaScript, TypeScript, React, Framer
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Senior Software Engineer
New York City or Washington or Austin or San Francisco
$195k-$235k/yr OnsiteFull Time
Method Financial
Method Financial: Connects financial accounts and processes debt payments via API.
5+ YOE5+ years software engineering experience; expert knowledge of JavaScript, Python or Java; experience with Node and React; building scalable production systems; strong communication and debugging skills.
JavaScript, JS, Node, React, Python, Java, AWS, Cloudflare, CI/CD, ACH, RTP
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2w
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Software Engineer
United States or San Francisco
$96k-$169k/yr HybridFull Time
Ethos
EthosNasdaq: LIFE: Provides an online platform for instant life insurance coverage.
2+ YOE2-5 years software engineering experience; full-stack JavaScript/TypeScript, Node or Python; frontend (HTML,CSS,React); API design, security, testing, and feature-flag/A-B experience.
Javascript, Typescript, Node, Python, Optimizely, HTML, CSS, React, Claude Code, Cursor, Copilot, Iterable, Twilio, Salesforce, Regal, Webpack
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1mo
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Software Engineer
Oakland or United States
$149k-$155k/yr RemoteFull Time
Dutch
Dutch: Providing virtual veterinary consultations and prescription services for pets.
2+ YOEBachelor's in STEM, 2 years full-stack software development experience with JavaScript/TypeScript, React, React Native, GraphQL, Git/GitHub, HTML/CSS/Sass, and API integration.
GitHub, Git, JavaScript, TypeScript, HTML, CSS, Sass, React, React Native, GraphQL, APIs
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1mo
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Sr. Software Development Engineer in Test
San Mateo, California, United States
$183k-$275k/yr OnsiteFull Time
Sony Interactive Entertainment
Sony Interactive EntertainmentNYSE: SONY: Provides PlayStation gaming hardware, software, and digital network services.
6+ YOEBS/MS or equivalent; 6+ years SDET/QE experience; experience testing ML systems; strong programming in Python, JavaScript/TypeScript, Java, C++; Selenium/Appium; RESTful APIs; CI/CD and frontend frameworks like React.
Python, JavaScript, TypeScript, Java, C++, Selenium, Appium, React, Jenkins, GitHub Actions, CircleCI
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1mo
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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
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1mo
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Software Engineer
San Francisco, California, United States
HybridFull Time
Backflip
Backflip: Developing generative AI foundation models for 3D mechanical design.
4+ YOE4+ years professional software engineering experience; strong full-stack skills building backend services, APIs, infrastructure and user-facing features; fluent with Python, Node.js, JavaScript/TypeScript, React, RESTful APIs and CI/CD.
Python, Node.js, RESTful APIs, CI/CD, JavaScript, TypeScript, React
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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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