56 web application engineer jobs at 40 companies in Sebastopol, CA
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Principal Engineer - Web Application Development
San Francisco, California, United States
$139k-$249k/yr OnsiteFull Time
10+ YOE10+ years of software engineering, web tech expertise, and experience scaling large-scale web platforms; strong JS/TS, frontend frameworks, and tooling.
React, Angular, TypeScript, JavaScript, Webpack, Vite, Turborepo, CI/CD, GraphQL, REST, AWS
2mo
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Lead Application Security Engineer
San Francisco, California, United States
$225k-$400k/yr OnsiteFull Time
4+ YOE5+ years in application security; hands-on web pen testing; TypeScript/Node and Python; cloud security in GCP/Azure; manage pen tests; secure coding; strong communication.
SAST, DAST, SCA, IaC scanning, secrets detection, OWASP, Firebase Auth, WorkOS, SAML, OAuth, SSO, RBAC, Kubernetes security, cloud security
2mo
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Software Engineer, Web Infrastructure
San Francisco or New York
$260k-$330k/yr HybridFull Time
8+ YOE8-10+ years of experience building and optimizing large web applications in React or similar frameworks; proven performance improvements; strong tooling and collaboration skills.
React, Webpack, Performance profiling
1w
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Staff Application Database Architect
San Francisco, California, United States
$190k-$250k/yr HybridFull Time
10+ YOE10+ years building OLTP databases for web applications; expert relational modeling, query optimization, Python/Django data access, AWS experience, and healthcare compliance knowledge (FDA/HIPAA/GDPR).
PostgreSQL, MySQL, Aurora, Python, Django, Django ORM, SQLAlchemy, Redis, Memcached, AWS, RDS, ElastiCache, S3, Glue, Spark, Airflow, FHIR, HL7, DICOM
2mo
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Software Engineer, Web Layer
San Francisco, California, United States
$255k-$405k/yr HybridFull Time
Strong C++ experience (browser/Chromium), end-to-end feature development, familiarity with TypeScript and Python, and ability to design OS integrations and build secure, high-performance desktop application platforms.
C++, Chromium, TypeScript, Python, Electron, macOS, Windows
1mo
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Senior Product Security Engineer
San Francisco or New York City or Seattle or Austin
$151k-$280k/yr OnsiteFull Time
5+ YOE5+ years product security experience, deep web application security, fluency in Python, React, Django Rest Framework, experience with code review, CI/CD application security, and mentoring engineering teams.
Python, React, Django Rest Framework, CI/CD, SSO, OAUTH, SAML, AWS
5d
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AI Platform Engineer
San Francisco, California, United States
$190k-$310k/yr OnsiteFull Time
Strong full-stack engineering skills, production web application experience, real-time and asynchronous systems experience, rapid application development ability, and familiarity with LLM-powered applications and agent architectures.
SDK, LLM
1mo
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Senior Software Engineer, WebOTT
San Francisco or Los Angeles or New York City
$186k-$266k/yr HybridFull Time
5+ YOE5+ years building high-performance web applications with React, Redux, JavaScript/TypeScript, HTML5/CSS and Web APIs; experience leading initiatives and mentoring engineers; CI/CD and infrastructure familiarity.
React, Redux, Node.js, GitHub Actions, Terraform, CDN, JavaScript, Web APIs, HTML5, CSS, TypeScript
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Technology Engineer – Senior (1043) - Applications Specialty - Citywide (C00094)
San Francisco, California, United States
$159k-$200k/yr OnsiteFull Time
3+ YOEAssociate degree in CS or related (or equivalent experience), 3+ years engineering experience building/maintaining platforms, APIs, web apps (e.g., Drupal), and databases (SQL). Must pass online exam; some assignments require security/TWIC/customs clearances.
Drupal, SQL, API
3d
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iOS Engineer II - Earner Trip Experience
San Francisco or Sunnyvale
$171k-$190k/yr HybridFull Time
2+ YOERequires 2+ years developing iOS applications with Swift or Objective-C, iOS fundamentals, Git, and team code reviews. Web development, backend APIs, reliability, and analytics experience preferred.
Swift, Objective-C, iOS, UIView, UIViewController, Auto Layout, Git, Web, Backend APIs
4w
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Frontend Engineer - BizBuySell - San Francisco
San Francisco, California, United States
$125k-$172k/yr OnsiteFull Time
Experience building high-performance web applications with modern web technologies, SPA frameworks, TypeScript, and strong communication; bachelor's degree required.
ASP.NET Core MVC, Angular, Vue, TypeScript, HTML5, CSS, JavaScript, AWS, Microsoft Azure, Microsoft SQL Server, MySQL, Jest, Mocha, Claude Code, Copilot
5d
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Senior Mobile Engineer
California or San Francisco or New York City or Pittsburgh
$218k-$250k/yr HybridFull Time
7+ YOERequires 7+ years building web applications, including 5+ years with React, independent feature delivery, React and TypeScript expertise, autonomy, cross-domain curiosity, and deep experience using AI tools in engineering workflows.
React, TypeScript, Electron, AI
1w
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Senior Customer Solutions Engineer
Sunnyvale or Boulder or San Francisco
$152k-$221k/yr OnsiteFull Time
6+ YOEBachelor's in engineering/CS or equivalent,6+ years with client-side web tech and programming,experience troubleshooting partners,EMR not applicable; SQL/NoSQL and systems experience preferred.
HTML, CSS, JavaScript, HTTP, Java, C, C++, Python, SQL, NoSQL, Linux, Unix
4w
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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
1mo
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Manager, Machine Learning Engineering, Web Ads Ranking
Palo Alto or San Francisco or Los Angeles or New York or Bellevue
$195k-$343k/yr OnsiteFull Time
8+ YOE1+ MgmtManage ML engineering team focused on ranking and recommendations. Requires 8+ years post-Bachelor ML experience (or equivalent), 1+ year leading ML teams, Bachelor’s in a technical field or equivalent, experience with ranking/LLM applications, distributed systems, and ML frameworks.
TensorFlow, Caffe2, PyTorch, Spark ML, scikit-learn
6d
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Software Engineer, Frontend
San Francisco, California, United States
$160k-$200k/yr HybridFull Time
3+ YOE3+ years building web applications; strong React, NextJS, TypeScript skills; experience with web performance, Tailwind, Radix UI; familiarity with visualization tools and time-series data preferred.
React, NextJS, TypeScript, Tailwind, Radix UI, WebGL, D3.js, Apache ECharts, WebAssembly, Parquet, Flink, Kafka, Redpanda, Beam, DuckDB, Timescale, QuestDB, InfluxDB, Druid, GitHub Actions, AWS, Azure, GCP, Docker, Kubernetes, Terraform, Go, Redux
3w
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Lead Product Software Engineer
San Francisco or New York
$171k-$229k/yr HybridFull Time
7+ YOE7+ years building scalable full-stack web applications; expert React, TypeScript, JavaScript, Node.js; agentic/AI-driven analytics experience; performance engineering; API design; mentorship and technical leadership.
React, TypeScript, JavaScript, Node.js, Python, Java, AWS, Looker/LookML, Snowflake, Databricks
2mo
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Senior Backend Engineer
United States or San Francisco
$170k-$195k/yr RemoteFull Time
5+ YOE5+ years production web application experience, CS degree or equivalent, strong algorithms/data-structures, relational DB expertise, mentoring and architecture leadership.
Ruby on Rails, Docker, AWS
1mo
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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
3d
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Staff Software Engineer, Front End
San Francisco or United States
$180k-$200k/yr HybridFull Time
5+ YOEAt least 5 years of hands-on front-end experience building commercial applications; strong front-end web development skills and experience with TypeScript, React, and related web technologies.
TypeScript, React, Next.js, Node.js, Vite, TanStack Router, Tailwind CSS, Material UI, TanStack Query, React Hook Form, Vitest, Playwright, Stripe, Firebase, Sentry, Python, CI/CD
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