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52 senior fullstack engineer jobs at 41 companies in San Mateo, CA

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Senior Fullstack Engineer - Growth
Los Gatos or Birmingham
RemoteFull Time
Overflow
Overflow: Philanthropy platform for stock, crypto, and cash donations.
5+ YOE5+ years fullstack engineering experience; strong React, TypeScript, Node.js; experience building RESTful APIs and relational schema; product-led growth mindset; mentorship and on-call participation.
React, TypeScript, Node.js, RESTful API
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1mo
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Senior Fullstack Engineer, Postman Insights
San Francisco or Boston or Austin or New York City or Tokyo or London or Bangalore
OnsiteFull Time
Postman
Postman: Platform for building, testing, and managing software APIs.
Senior fullstack engineer with strong track record launching user-facing frontend and backend features, architecture experience, driving large projects, fast startup experience, product focus, AI familiarity, and ability to work from San Francisco office 5 days/week.
Postman Insights, Postman
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3w
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Senior Fullstack Engineer
Menlo Park, California, United States
$200k-$288k/yr OnsiteFull Time
Snowflake
SnowflakeNYSE: SNOW: Cloud-based platform for data storage, processing, and analytics.
Senior-level full-stack engineering experience building customer-facing products and scalable systems; proficient with JavaScript (React), Go, and Java; strong product sense, communication, and mentoring ability.
JavaScript, React, Go, Java
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3mo
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Senior Fullstack Engineer, Solve
Austin or Madison or San Francisco
$145k-$217k/yr HybridFull Time
Zendesk
Zendesk: Provides cloud-based software for customer service and support.
3+ YOE3+ years of production software experience; backend-first with APIs, async systems, integrations, and real-time systems; ownership of features end-to-end; experience with real-time or event-driven tech such as WebSockets/WebRTC.
Python, FastAPI, React, TypeScript, WebRTC, Redis, MongoDB, LLM / speech
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1w
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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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3w
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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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3w
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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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2mo
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Senior Fullstack Engineer - New Product
San Mateo, California, United States
$130k-$280k/yr OnsiteFull Time
Verkada
Verkada: Sells integrated AI-powered cloud physical security hardware and software.
5+ YOE5+ years building production systems; strong backend (Go); AWS; full-stack across backend, frontend, and devices; distributed systems knowledge; startup mindset.
Go, AWS, APIs, Frontend, Distributed Systems
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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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Staff Fullstack Engineer, Agentic Applications
Mountain View, California, United States
$192k-$260k/yr OnsiteFull Time
Databricks
Databricks: A unified platform for data analytics and artificial intelligence.
8+ YOE8+ years software engineering with 2+ years building production LLM/agentic applications; deep Python fluency; experience with agentic frameworks, REST/GraphQL integrations, Databricks/Spark, and technical leadership.
Python, LangChain, LangGraph, CrewAI, AutoGen, Semantic Kernel, RAG pipelines, REST, GraphQL, Databricks Unity Catalog, Databricks, Spark, Workday, Greenhouse, ADP, MLflow
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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 & Monetization
New York City or San Francisco or Boston
$175k-$240k/yr OnsiteFull Time
LangChain
LangChain: Tools for building and deploying production-ready AI agents.
Extensive full-stack experience with React, TypeScript, and Go and/or Python; familiarity with Postgres, Redis, REST APIs, usage metering, subscriptions, and monetization systems; strong product intuition and analytics-driven mindset.
LangSmith, LangChain, LangGraph, Deep Agents, LangSmith Engine, React, TypeScript, Python, Go, REST APIs, Postgres, Redis
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5d
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Senior Fullstack Software Engineer
Westford or Austin or Santa Clara
$184k-$357k/yr HybridFull Time
NVIDIA
NVIDIANASDAQ: NVDA: Designs GPU-accelerated computing and artificial intelligence hardware.
6+ YOEExpertise in Golang, TypeScript/JavaScript, Unix/Linux, database concepts, algorithms; BS in Computer Science or equivalent; 6+ years software development experience.
Golang, Unix/Linux, typescri pt, javascript, Docker, K8S, Ruby, C++
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1mo
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Fullstack Senior Software Engineer
Foster City, California, United States
HybridFull Time
Visa
VisaNYSE: V: Global payment technology facilitating electronic funds transfers.
2+ YOEMaster's degree in a technical field or Bachelor's + 2 years, or 5 years related experience; expertise in one or more languages (Java, C#, C++, Python, PHP, JavaScript); experience building scalable services; familiarity with front-end (HTML, CSS, JavaScript) and modern tools (Angular, React, Kubernetes, Docker).
HTML, CSS, JavaScript, Java, C++, C#, Python, PHP, Angular, React, Kubernetes, Docker, APIs
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2mo
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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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2w
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Senior Fullstack Product Engineer (Go)
London or New York City or San Francisco or Palma or Casablanca
OnsiteFull Time
Nuitée
Nuitée: Provides API infrastructure for the global travel industry.
Experienced Go backend and modern frontend (Next.js/Vue.js) developer with product focus, UX judgement, and ability to own features end-to-end.
Golang, Next.js, Vue.js
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1mo
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Fullstack Developer (US)
New Jersey or New York City or San Francisco
OnsiteFull Time
Lynx Analytics
Lynx Analytics: Provides graph-based AI and big data analytics solutions for enterprises.
5+ YOEBachelor's in CS, 5+ years full-stack development across front- and back-end, experience with React/Next.js and Python, cloud-native experience, overlap 3 hours/day with Pacific Time, strong communication.
React, Next.js, Jest, React Testing Library, Python, AWS, Azure, GCP, Docker, Kubernetes, CI/CD
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2mo
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Software Engineer, Frontend/Fullstack
San Mateo, California, United States
$150k-$300k/yr OnsiteFull Time
WisdomAI
WisdomAI: AI-powered conversational analytics platform for enterprise data teams.
Frontend/Fullstack engineer with strong React, TypeScript, and Node experience; product instinct and polish; Bachelor's in Computer Science or equivalent; mid-to-senior level experience preferred.
React, TypeScript, Node, Cursor, Claude Code, Codex, Figma, Slack
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1mo
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Fullstack Design Engineer
San Francisco, California, United States
$140k-$180k/yr OnsiteFull Time
Blaxel
Blaxel: Cloud infrastructure purpose-built for autonomous AI agents.
Design and ship end-to-end product experiences; strong design craft, front-end fundamentals (TypeScript, React, CSS), AI fluency, analytics-driven iteration, and building design systems.
TypeScript, React, CSS, Figma
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3w
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Member of Technical Staff, Fullstack
San Francisco, California, United States
$205k-$225k/yr OnsiteFull Time
Envoy
Envoy: Unified workplace management platform for hybrid office operations.
7+ YOEBS/MS in CS or related field,7+ years building production fullstack software with React and TypeScript plus backend experience (Java/Kotlin/Ruby),Postgres,Git,CI/CD,API design,product-focused mindset.
React, JavaScript, TypeScript, HTML, CSS, Postgres, Git, GitHub, CI/CD, RESTful APIs, GraphQL, Java, Kotlin, Ruby on Rails, LenelS2, Brivo, Genetec, Honeywell, Cisco Meraki, Okta, Microsoft Azure, Microsoft Teams, Slack, ServiceNow, DocuSign, Avigilon Alta, Descartes Visual Compliance
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