111 senior fastapi developer jobs at 82 companies in Los Gatos, CA
3mo
Save
Mark Applied
Hide
Senior Backend Engineer (Python)
San Francisco, California, United States
$175k-$250k/yr RemoteFull Time
4+ YOE4+ years building production back-ends in Python; real-time streaming; AWS/GCP/Azure; PostgreSQL/Redis; FastAPI/asyncio; HIPAA security.
Python, FastAPI, asyncio, WebRTC, WebSockets, gRPC, AWS, GCP, Azure, Kubernetes, Kafka, SQS, Pub/Sub, Terraform, PostgreSQL, Redis, OpenTelemetry
2mo
Save
Mark Applied
Hide
Senior Software Engineer, App
Cambridge or San Francisco
$144k-$240k/yr HybridFull Time
5+ YOEBachelor’s or Master’s in CS/Engineering; 5-8+ years backend/full-stack exp; React, TypeScript, FastAPI, Python; AWS, Kubernetes; AI tooling; strong collaboration.
React, TypeScript, Nx, Tailwind, FastAPI, Python, Pydantic, SQL, NoSQL, AWS, Kubernetes, Terraform, GitHub Actions
2w
Save
Mark Applied
Hide
Senior Engineer
Santa Clara, California, United States
$120k-$150k/yr OnsiteFull Time
6+ YOEExpertise in Python or Java, full-stack development (Next.js/React/TypeScript), GraphQL and FastAPI backend, prompt engineering and GenAI tooling, cloud deployment on AWS/Azure, and bachelor's degree or equivalent.
Python, Java, Ariadne(GraphQL), appoloClientGraphQL, FastAPI, Next.js, React, TypeScript, Javascript, GitHub Copilot, Amazon Code Whisperer, GPT-4, Claude, Llama, AWS Lambda, S3, EC2, SageMaker, Azure Functions, Blob Storage, Azure OpenAI Service
2mo
Save
Mark Applied
Hide
Senior Backend Engineer
San Francisco, California, United States
$175k-$275k/yr OnsiteFull Time
5+ YOE5+ years backend development with Python, FastAPI/Pydantic; Kubernetes/EKS; relational databases; AWS stack; building scalable services.
Python, FastAPI, Pydantic, Kubernetes, EKS, PostgreSQL, Redis, S3, DynamoDB, AWS
1mo
Save
Mark Applied
Hide
Senior Software Engineer - Python
Toronto or San Francisco
$130k-$225k/yr RemoteFull Time
5+ YOE5+ years software development with production-level Python, enterprise SaaS/scale experience, proficiency with Python, Git, FastAPI, Pydantic, strong communication and mentorship skills, and unrestricted right to work in the U.S.
Python, Git, FastAPI, Pydantic
1mo
Save
Mark Applied
Hide
Senior Full Stack Software Engineer
Redwood City, California, United States
HybridFull Time
Senior-level experience building production web applications with TypeScript and modern frontend frameworks; backend experience with Python/FastAPI and relational databases; strong product judgment and collaboration skills.
TypeScript, Next.js, React, Vite, Python, FastAPI, PostgreSQL
2mo
Save
Mark Applied
Hide
Senior Software Engineer
San Francisco, California, United States
$146k-$235k/yr HybridFull Time
8+ YOEBachelor's in CS or STEM with 8+ years of software engineering experience; full-stack with Java/JavaScript-TS, React; experience with Oracle Fusion Cloud APIs, OIC, Python, AI/ML, cloud-native tech, and CI/CD.
Java, JavaScript, TypeScript, React, OIC, VBCS, APEX, Groovy, PL/SQL, Oracle Fusion Cloud APIs, Python, Django, FastAPI, REST, SOAP, JSON/XML, Docker, Kubernetes, AWS, Azure, Oracle OCI, Jira, Confluence, GitHub Co-Pilot, LLMs, MLOps, RAG
1mo
Save
Mark Applied
Hide
Senior AI Engineer
United States or New York City or Palm Beach or Los Angeles or Miami or Greenwich or Westchester County or The Hamptons or San Francisco or Manhattan
$190k-$250k/yr RemoteFull Time
4+ YOE4+ years building and operating LLM-powered production ML systems, strong Python, backend framework experience (FastAPI/Flask), LLM orchestration and retrieval design, Snowflake/dbt/Dagster/Airflow familiarity, evaluation systems, HIPAA/PHI knowledge, and strong written communication.
Python, FastAPI, Flask, Snowflake, dbt, Dagster, Airflow, vLLM, Triton, TGI, SGLang, LOINC, SNOMED CT, ICD-10, RxNorm, FHIR, HL7
3mo
Save
Mark Applied
Hide
Senior Fullstack Engineer, Solve
Austin or Madison or San Francisco
$145k-$217k/yr HybridFull Time
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
2mo
Save
Mark Applied
Hide
Staff Platform Engineer (Pacific Time Zone)
San Francisco, California, United States
$225k-$275k/yr HybridFull Time
Senior backend engineer with platform and control-plane experience; strong Python (FastAPI) and AWS; multi-tenant SaaS; focus on observability, reliability, and developer productivity.
Python, FastAPI, AWS, Snowflake, Airflow, Spark, RBAC, API design, KMC/PSS
1mo
Save
Mark Applied
Hide
Senior Software Engineer, Full-Stack
San Francisco, California, United States
$170k-$230k/yr HybridFull Time
7+ YOE7+ years software engineering experience with deep backend expertise; experience with distributed systems, production LLM/Generative AI systems, FastAPI, MongoDB/Postgres, Docker, and AWS; strong communication and product mindset.
FastAPI, MongoDB, Postgres, Docker, AWS, LLMs, Generative AI
1mo
Save
Mark Applied
Hide
Senior Software Engineer, Engine & Distributed Systems
San Francisco or New York City
$220k-$240k/yr HybridFull Time
5+ YOE5+ years building backend distributed systems; experience with durable execution/workflow orchestration (Temporal, Cadence, Airflow), strong Python and FastAPI skills, Postgres familiarity, concurrency, fault tolerance, and recovery.
Temporal, Cadence, Airflow, Python, FastAPI, Postgres, PydanticAI, LangGraph
1mo
Save
Mark Applied
Hide
Senior Software Engineer - Full Stack, Technical Lead
San Francisco, California, United States
$200k-$250k/yr HybridFull Time
5+ YOE5+ years full-stack experience; advanced Python; frontend with React and TypeScript; backend experience with GraphQL/FastAPI; Postgres and AWS familiarity; proven technical project leadership and mentorship.
Python 3, GraphQL, FastAPI, React, TypeScript, Postgres, AWS
2d
Save
Mark Applied
Hide
Copy of Senior Software Engineer, Identity Graph
San Francisco, California, United States
$230k-$340k/yr HybridFull Time
Proven experience shipping end-to-end product features (ingestion→storage→API), strong async Python, deep Postgres expertise, FastAPI/OpenAPI experience, and multi-tenant API and schema ownership.
Postgres, Python, FastAPI, OpenAPI, GCP, Cloud Run, Cloud Tasks, Cloud SQL
4w
Save
Mark Applied
Hide
Senior Software Engineer, W&B Agent - W&B
Livingston or New York City or San Francisco or Sunnyvale or Bellevue
$182k-$242k/yr OnsiteFull Time
4+ YOE4+ years full‑stack experience with Python backend and React/TypeScript frontend; experience with FastAPI, Kubernetes, distributed systems, observability, and MySQL; security- and performance-minded.
Python, FastAPI, Kubernetes, React, TypeScript, Datadog, Weave tracing, MySQL, WebSockets, server-sent events
2mo
Save
Mark Applied
Hide
Member of Technical Staff - Senior Software Engineer
San Francisco, California, United States
$150k-$300k/yr OnsiteFull Time
4+ YOE4+ years engineering experience; full-stack ownership from frontend to backend; strong React/TypeScript, API and services design, Python/FastAPI, Go, and Postgres experience; familiarity with Kubernetes and agent/LLM integrations.
React, TypeScript, Next.js, Python, FastAPI, Postgres, Go, Kubernetes, Claude Code, Codex, Cursor, Playwright, Selenium
2mo
Save
Mark Applied
Hide
GenAI Python Systems Engineer –Senior Manager
Chicago or Raleigh or Charlotte or Cincinnati or Cleveland or Columbia or Columbus or Dallas or Baltimore or Richmond or Rosemont or Sacramento or Boston or St. Louis or Salt Lake City or San Antonio or San Diego or San Francisco or Silicon Valley or Seattle or Spartanburg or Albany or Stamford or Tampa or Atlanta or Toledo or Austin or Tulsa or Washington or Denver or Des Moines or Detroit or Buffalo or Florham Park or Kansas City or Las Vegas or Little Rock or Los Angeles or Louisville or Birmingham or Fayetteville or Miami or Milwaukee or Minneapolis or Nashville or New Orleans or New York or Oklahoma City or Philadelphia or Phoenix or Pittsburgh or Portland
$124k-$280k/yr HybridFull Time
8+ YOESenior Manager level with 8+ years of experience; proficient in Python, SQL, FastAPI; cloud certifications a plus; willing to travel up to 80%; Bachelor's degree required.
Python, SQL, FastAPI, Cloud Platforms, LLM techniques, Data Warehousing, Data Lakes, IAM
3d
Save
Mark Applied
Hide
Senior Backend Engineer
San Francisco, California, United States
$110k-$200k/yr OnsiteFull Time
5+ YOE5+ years backend experience, proficiency in Python, FastAPI, SQL, testing with pytest, experience designing data architectures and shipping production systems, familiarity with AI-assisted coding tools.
Python, FastAPI, pytest, Claude Code, Codex, OpenCode, SQL, AWS
1w
Save
Mark Applied
Hide
Senior Software Engineer - AI, CoCounsel International
Eagan or Frisco or New York City or Ann Arbor or San Francisco or Los Angeles or Irvine or McLean or Washington
$110k-$204k/yr HybridFull Time
4+ YOE4+ years backend engineering experience with Python, FastAPI, PostgreSQL, AWS; production agentic AI and LLM integration experience; strong debugging, architecture, and collaboration skills.
Python, FastAPI, PostgreSQL, AWS, OpenAI, Anthropic
1mo
Save
Mark Applied
Hide
Sr Product Engineer
Palo Alto or California
$180k-$250k/yr OnsiteFull Time
5+ YOE5+ years backend development experience; proficiency with Python, FastAPI, PostgreSQL; experience with LLM/ML products; comfortable owning frontend (React/TypeScript); BS/MS in CS or related; located in San Francisco Bay Area or willing to relocate.
Python, FastAPI, PostgreSQL, TypeScript, React, Claude Code, Codex, Cursor, MCP servers, LLMs, ML, AWS, Supabase, LaunchDarkly, Betterstack