43 full stack applications developer jobs at 36 companies in Fairfield, CA
1d
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Senior/Staff Full-Stack Engineer
South San Francisco or Toronto
$150k-$250k/yr HybridFull Time
Deep full-stack experience building frontend, backend, database, deployment, and secure, reliable production applications; strong communication and collaboration in small teams.
1mo
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Full Stack Engineer (Contractor) - Palo Alto
Palo Alto or San Francisco or Singapore or Tokyo or Shenzhen or Seattle or Beijing
$85/hr OnsiteFull Time, Contract
3+ YOE3+ years full‑stack experience with modern frontend frameworks (React) and backend development (Go, Java or similar); RESTful API integration; building scalable, reliable web applications; strong communication and ownership.
React, Go, Java, RESTful API
4w
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Full-Stack Software Engineer
San Francisco, California, United States
OnsiteFull Time
Experience shipping full-stack web applications, TypeScript/React, SQL/PostgreSQL, authentication and multi-tenant access, production deployment and debugging; strong ownership and system-level engineering skills.
TypeScript, React, SQL, PostgreSQL, Supabase, Python, ArduPilot, Mapbox, Git, WebSockets, Linux, SSH
3w
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Senior Full Stack Engineer
New York City or San Francisco
$161k-$210k/yr OnsiteFull Time
4+ YOE4+ years building front-end and back-end web applications, BS in CS or 8+ years experience, experience with AI-assisted development tools, strong CS fundamentals and code-review skills.
Claude Code, Cursor, Ruby, Flask, Node, React, Angular, Vue
1mo
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Founding Full Stack Software Engineer, Legal
San Francisco, California, United States
$293k-$325k/yr OnsiteFull Time
6+ YOE6+ years professional software engineering experience; built and shipped full-stack applications; strong frontend and backend skills; product instincts; rapid prototyping; comfortable working with AI models and APIs.
OpenAI models, OpenAI APIs
2w
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Senior Full-Stack Engineer
San Francisco or Seattle or United States
$170k-$230k/yr HybridFull Time
3+ YOE3+ years building React applications, 1+ year backend experience, degree or equivalent experience, strong communication and customer-focus, comfortable across frontend and backend.
Ruby, Ruby on Rails, Java, Dropwizard, GCP, Kubernetes, Kafka, BigTable, Spanner, Graph DB, Postgres, Redis, gRPC, Python, Apache Airflow, Snowflake, BigQuery, ReactJS, React, React Query, React Router, Cypress, Jest, Storybook, SCSS
1mo
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Senior Full Stack Engineer - Seattle
Seattle or San Francisco or New York City
$200k-$220k/yr HybridFull Time
Haus: Provides an incrementality platform for marketing measurement and optimization.
5+ YOE5+ years building production web applications and APIs; strong Python and React skills; experience with Flask, SQLAlchemy, relational databases, cloud-native (GCP preferred), and AI development tools; on-call participation.
Python, Flask, React, SQLAlchemy, GCP, MySQL, PostgreSQL, Claude Code, Cursor, Copilot, Meta, Google, TikTok, Meta Marketing API, Google Ads API
2mo
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Senior Full-Stack Senior Engineer (Front-End Leaning)
Toronto or San Francisco or New York City or Montreal or London or Paris or Seoul or Germany or United Kingdom or Canada or United States or Europe
RemoteFull Time
Proven experience shipping full-stack production code (Python and React), building performant client- or server-side RAG/agentic applications, strong coding and product thinking, and experience productionizing models under strict security/privacy constraints.
Python, React, GitHub, North
2mo
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Senior Full-Stack Product Engineer, AI-Enabled Products
San Francisco, California, United States
$160k-$210k/yr OnsiteFull Time
5+ YOE5+ years building production web applications; strong full-stack experience (frontend, backend, APIs, data models); experience with React, Python, SQL/Postgres; familiarity with AI-assisted development tools; mentoring and product judgment.
React, Remix, Python, FastAPI, Postgres, SQL
3w
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Software Engineer, Full Stack
San Mateo or San Francisco
OnsiteFull Time
Proficiency in Python and a modern frontend framework, experience building full-stack web applications, API design, and working with data-intensive applications for technical users.
Python, React, Vue
1w
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Applications Engineer
San Francisco, California, United States
OnsiteFull Time
Experience building full-stack tools for genomics data (Python, TypeScript, React), familiarity with VCFs and variant annotation, strong communication and partner-facing skills, ability to ship prototypes quickly.
Python, TypeScript, React, VCF
2w
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Software Engineer III, Full Stack
Mountain View or Palo Alto or San Bruno or San Francisco or Sunnyvale
$147k-$211k/yr OnsiteFull Time
2+ YOEBachelor's or equivalent,2 years programming in C++/Python/Java and JavaScript/TypeScript,2 years front-end/full-stack/API development; BLS/CPR not applicable.
C++, Python, Java, JavaScript, TypeScript
4d
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Principal Frontend Engineer (Full Stack)
Oakland, California, United States
HybridFull Time
8+ YOE8+ years building web applications; strong expertise with React, TypeScript, JavaScript; backend experience with Python and Django; experience integrating LLMs/AI and deploying on AWS.
React, TypeScript, JavaScript, Python, Django, LLMs, RESTful APIs, AWS, vector databases, RAG, semantic search
2w
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Member of Technical Staff - Engineering Lead, Applications
San Francisco or London or New York City
OnsiteFull Time
Experience leading and mentoring engineering teams, deep full-stack engineering background, strong coding skills, familiarity across UI/API/auth layers, and experience integrating customer systems.
React, TypeScript, REST, gRPC, Go, FastAPI
1w
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Software Engineer, Applications (App Foundations) (High Seniority)
San Francisco, California, United States
$225k-$305k/yr HybridFull Time
Benchling: Cloud platform for biotechnology research and development.
8+ YOE8+ years software engineering experience, technical lead on large projects, backend and API expertise, full‑stack ability, mentoring skills, experience with scalable architectures and cloud web apps.
React, Python, Postgres, LLMs
1w
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Associate Application Developer
Sacramento, California, United States
$5k-$9k/mo HybridFull Time
1+ YOE1–2+ years in analysis, design, development, testing and implementation of medium to large applications; strong OOP and full-stack Microsoft experience including ASP.NET, C#, SQL, JavaScript; Azure DevOps/GitHub familiarity.
ASP.NET MVC, ASP.NET Core MVC, Razor Pages, C#, CSS, Bootstrap, jQuery, RESTful API Services, Blazor, Microsoft SQL Server, SQL Server Integration Services (SSIS), SQL Server Reporting Services (SSRS), JavaScript, Azure DevOps, GitHub, Salesforce (Service Cloud, Marketing Cloud)
3mo
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Software Engineer II, Backend
New York or San Francisco or Seattle
$152k-$190k/yr HybridFull Time
4+ YOE4+ years of professional experience designing, developing, and deploying full-stack applications; experience building client-side code end-to-end; strong engineering standards; hybrid work location (NY, SF, or Seattle).
Full-Stack Development, Client-Side Development, Software Engineering
1mo
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Senior Software Engineer, RCM Billing
Mountain View or San Francisco or Los Angeles or New York City
$170k-$240k/yr HybridFull Time
5+ YOE5+ years building scalable full-stack applications; proficiency with JavaScript/React, Python, and PostgreSQL; strong architecture, observability, performance, and mentoring skills.
ReactJS, React, Vue, JavaScript, Python, PostgreSQL, GraphQL, REST, gRPC, CI/CD, EHRs
2mo
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Sr. Application Developer
San Francisco, California, United States
$101k-$190k/yr HybridFull Time
3+ YOEBachelor's degree in information technology, computer science, or related area; 3+ years full-stack development with Node.js, PHP, JavaScript; MySQL; Linux; UI/UX, SDLC/Agile; GitHub; ERP integration; strong analytical and communication skills.
Node.js, PHP, JavaScript, jQuery, Lumen, Laravel, MySQL, Linux, GitHub, Shell scripting, Cron
2w
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Staff Software Engineer
United States or New York City or San Francisco
$200k-$240k/yr RemoteFull Time
8+ YOE8+ years building web applications, leading engineers, architecting scalable web services, mentoring, and broad full‑stack experience; familiarity with React, TypeScript, Kotlin, and Rails; US-based remote.
React, TypeScript, Kotlin, Rails
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