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51 fullstack software engineer jobs at 39 companies in Napa, CA

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Founding Full-stack / Product Engineer
Cupertino, CA, US
$130k-$300k/yr On-SiteFull Time
HiringCafe
HiringCafe: Building a 100× better job search engine to take on Indeed and LinkedIn.
Help us build a 100× better job search engine. We need a full-stack engineer with great taste, sharp fundamentals, and a track record of shipping polished product on React/Next.js plus a real backend (Firebase, Elasticsearch, Redis, Stripe).
React, Next.js, TypeScript, Firebase, Elasticsearch, Redis, Stripe
Help us #BeatIndeed & #BeatLinkedIn
2mo
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Fullstack Software Engineer
San Francisco, California, United States
$170k-$200k/yr HybridFull Time
Collective
Collective: All-in-one financial platform for self-employed entrepreneurs.
3+ YOE3–4 years of production software experience; strong fullstack skills (Python, Django, React); experience with external APIs and real-world data; hands-on AI developer tools; ability to ship end-to-end features with instrumentation; SQL and data warehousing (BigQuery a plus).
Python, Django, React, SQL, BigQuery, APIs
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1mo
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Fullstack Software Engineer, AI Agents (Copy)
San Francisco, California, United States
$150k-$250k/yr OnsiteFull Time
11x
11x: Builds autonomous AI agents for sales and revenue teams.
3+ YOE3+ years as software/product engineer; strong fullstack with TypeScript, React, Next.js, Node.js; ownership of products from concept to launch; high agency; strong product intuition; able to work in ambiguity; bias toward building and prototyping; strong cross-functional communication; interest in AI-native workflows.
TypeScript, React, Next.js, Node.js, Cursor, Claude, Windsurf, v0
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1mo
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Fullstack Software Engineer, Applied AI
San Francisco, California, United States
$130k-$500k/yr OnsiteFull Time
Mercor
Mercor: Connecting expert human intelligence with frontier AI model development.
5+ YOE5+ years fullstack experience; JS/TS (React/Next.js); Python/Node.js backend; data pipelines; strong UX; able to own frontend and backend.
React, Next.js, Python, Node.js, REST, Relational databases
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2mo
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Fullstack Software Engineer, Notifications Lifecycle
San Francisco, California, United States
$164k-$229k/yr RemoteFull Time
Reddit
RedditNYSE: RDDT: Social platform for community-driven discussion and content sharing.
3+ YOE3+ years software engineering; full stack experience; frontend in Typescript, backend in GraphQL, Go, or Python; strong testing and reliability.
Go, Python, Typescript, GQL, Spark, Kafka, Airflow, BigQuery, Redis, Cassandra, PostgreSQL, Kubernetes, Docker
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1mo
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Staff Software Engineer - Fullstack
San Francisco or New York City or London or Sydney
$240k-$270k/yr OnsiteFull Time
Sigma Computing
Sigma Computing: Cloud-native analytics platform featuring a spreadsheet-style interface.
10+ YOE10+ years building and deploying high-quality web software; strong CS fundamentals; experience with Rust, Go, GraphQL, and TypeScript; continuous deployment and distributed systems experience preferred.
Rust, Go, GraphQL, TypeScript, SQL, Python
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2mo
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AI Software Engineer (Fullstack)
Walnut Creek, California, United States
HybridFull Time
Clearstory
Clearstory: SaaS platform for managing construction project change orders.
2+ YOE2-3+ years software engineering; Python/TypeScript; fullstack React/Postgres; LLM tooling; cloud; Docker; CI/CD; strong communication.
Python, TypeScript, React, Postgres, Docker, CI/CD, GCP
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2mo
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Fullstack Staff Software Engineer
Foster City, California, United States
$146k-$234k/yr HybridFull Time
Visa
VisaNYSE: V: Global payment technology facilitating electronic funds transfers.
5+ YOE5+ years software engineering experience with a Bachelor's degree or 2+ years with an advanced degree; web/mobile apps; leadership experience; experience with web services; debugging and testing; cross-functional collaboration.
Java, C++, C#, Angular, React, Kubernetes, Docker
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2mo
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Senior Fullstack Software Engineer
San Francisco or Bangalore or Boston or Austin or Tokyo or London
OnsiteFull Time
Postman
Postman: Platform for building, testing, and managing software APIs.
8+ YOE8+ years experience building frontend or full-stack apps; strong JS/HTML/CSS; React or Next.js; data-driven decisions; ownership; collaboration; developer-focused mindset.
JavaScript, HTML, CSS, React, Next.js, MobX
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2w
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Senior Fullstack Engineer
San Francisco, California, United States
$170k-$250k/yr OnsiteFull Time
Circleback
Circleback: AI-powered platform for capturing and managing workplace meeting intelligence.
3+ YOE3+ years building and shipping full‑stack software; experience with React/Next.js, Electron, Swift, React Native; AI and product-oriented engineering judgment.
React, Next.js, Electron, Swift, React Native
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3mo
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Staff Software Engineer, Fullstack
San Francisco, California, United States
$325k-$485k/yr OnsiteFull Time
Ivo
Ivo: AI-powered contract review and intelligence platform for legal teams.
Full-time, on-site staff software engineer building full-stack generative AI products; startup experience preferred.
Full‑stack development, Generative AI tooling, LLM orchestration, Data extraction, Clustering, UI and backend systems
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2w
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Software Engineer, Fullstack
San Francisco, California, United States
$200k-$320k/yr OnsiteFull Time
Swarm Aero
Swarm Aero: A building swarming unmanned aircraft and command-and-control software to enable large-scale autonomous operations.
6+ YOEDegree in CS or equivalent, 6+ years building complex full-stack applications, strong UI/UX instincts, React experience, performance-sensitive and real-time systems experience, familiarity with WebGL/OpenGL and C++ preferred.
React, WebGL, OpenGL, C++, CI/CD
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1mo
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Software Engineer, Fullstack
San Francisco, California, United States
$131k-$192k/yr OnsiteFull Time
DoorDash
DoorDashNASDAQ: DASH: On-demand delivery platform connecting consumers with local merchants.
6+ YOEBS/MS/PhD in CS or equivalent, 6+ years industry experience, strong JavaScript/HTML/CSS, React/Redux, Node.js/Express, REST/gRPC, relational DB (PostgreSQL), testing and documentation skills.
React, Redux, Node.js, Express, PostgreSQL, Java, Kotlin, HTML5, CSS3, JavaScript, gRPC, REST
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1mo
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Staff Fullstack Engineer
New York City or San Francisco
HybridFull Time
Dispatch
Dispatch: Syncing client data across financial advisor software tools.
10+ YOE10+ years engineering experience; deep Node and React proficiency; track record architecting and shipping high-scale production systems; experience setting technical direction across teams; startup experience preferred.
React, Node, Fastify, MUI, React Query, Vite, Storybook, Playwright, Go, Postgres, gRPC, Protobuf, Redis, AWS, Terraform, GitHub Actions
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1mo
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Senior Fullstack Engineer - Growth + Onboarding
New York City or San Francisco or Los Angeles
$180k-$210k/yr HybridFull Time
Pivotal Health
Pivotal Health: AI platform automating healthcare insurance claim disputes for providers.
6+ YOE2+ Mgmt6+ years software engineering experience with recent backend work, 2+ years managing engineers, experience with integrations and third-party APIs, customer-facing communication, Python familiarity, and Bachelor's in STEM preferred.
EDI, 835/837, HL7, FHIR, ICD-10, CPT, Epic, Cerner, SFTP, Python
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1mo
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Software Engineer - Fullstack (New Revenue)
San Francisco or Seattle
$140k-$235k/yr HybridFull Time
DocuSign
DocuSignNASDAQ: DOCU: Provider of e-signature and intelligent agreement management software.
5+ YOE5+ years software development; 3+ years JavaScript/Typescript web apps; experience with React, backend services, unit testing, CI/CD, Git; BS in CS preferred.
JavaScript, Typescript, React, C#, Python, Java, Git, Redux, Angular, CI/CD
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3w
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Senior Software Engineer, Platform Fullstack - Hiring Sprint
San Francisco, California, United States
$196k-$255k/yr HybridFull Time
Airbyte
Airbyte: Open-source data integration platform for automated data movement.
5+ YOE5+ years building production fullstack applications; deep expertise with React and TypeScript; strong backend experience building APIs and distributed systems; familiarity with cloud infrastructure and modern deployment workflows.
React, TypeScript, Kubernetes, Docker, Terraform, GitHub Actions, CI/CD, Grafana, Datadog, Prometheus, Java, Kotlin
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2mo
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Fullstack Engineer, Creator Home
New York or San Francisco
$189k-$256k/yr HybridFull Time
Patreon
Patreon: Membership platform for creators to monetize work and engage fans.
2+ YOE2–3+ years in software development; Python experience; backend systems; product-minded; ability to explain trade-offs.
Python, React, TypeScript, APIs
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3mo
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Founding Fullstack Engineer
San Francisco, California, United States
$120k-$170k/yr OnsiteFull Time
MathGPT
MathGPT: Personal AI tutor for every STEM student.
Experience building and shipping modern web apps end-to-end (React/Typescript); strong product sense; polished UI; strong communication; simplifies code.
React, Typescript, React Native, Expo
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2w
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Senior Fullstack Engineer
San Francisco, California, United States
$230k-$280k/yr OnsiteFull Time
Mochi Health
Mochi Health: Provides telehealth weight management and prescription medication services.
5+ YOE5+ years full-stack experience, production systems experience, strong frontend state management, data modeling, ownership of lifecycle, experience with Kubernetes/Terraform/AWS, mentoring skills, and familiarity using frontier AI tools.
Kubernetes, Terraform, AWS, React, CI/CD, Codex 5.3, Claude Opus 4.6
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Senior Fullstack Engineer
Palo Alto or San Francisco
$170k-$210k/yr HybridFull Time
Midi Health
Midi Health: Virtual medical care for women navigating midlife and menopause.
6+ YOE6+ years building production full‑stack web applications; strong system design; hands‑on experience with Django/DRF and React/Next.js or equivalent; fluent with AI coding tools; excellent communication and mentorship.
Claude Code, Cursor, Copilot, Django, DRF, React, Next.js
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