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45 fastapi developer jobs at 32 companies in Seattle, WA

1mo
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Senior Cloud Engineer
Brisbane or Seattle or Princeton
$151k-$183k/yr HybridFull Time
Bristol Myers Squibb
Bristol Myers SquibbNew York Stock Exchange: BMY: Develops and distributes innovative medicines for serious diseases.
5+ YOEBachelor's degree, 5+ years cloud/software engineering experience, hands-on AWS cloud-native development, Python/FastAPI or TypeScript/Node proficiency, Terraform/AWS CDK/CloudFormation, containerization, CI/CD, and experience building LLM/RAG/agentic AI applications.
AWS, Amazon S3, Amazon S3 Vectors, Amazon Athena, Amazon RDS, PostgreSQL, ElastiCache, Redis, OpenSearch, Amazon Neptune, AWS Fargate, AWS Lambda, AWS IAM, VPC, Python, FastAPI, TypeScript, Node, LangGraph, FastMCP, LangSmith, LangChain, PydanticAI, Claude Agent SDK, OpenAI, Anthropic, Gemini, AWS Bedrock, Claude Code, Codex, Gemini CLI, GitHub, GitHub Copilot, CI/CD, Terraform, AWS CDK, CloudFormation
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2w
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Senior Machine Learning Engineer (10187)
Seattle or Salem
$110k-$160k/yr HybridFull Time
Extreme Networks
Extreme NetworksNASDAQ: EXTR: Provides cloud-managed networking hardware and software solutions.
4+ YOEBachelor's degree in math/computer science, 4+ years software development experience, strong Python, FastAPI, Docker, Kubernetes, cloud architecture experience, ML familiarity (PyTorch, Sagemaker) and leadership/mentorship experience.
Python, FastAPI, Docker, Kubernetes, CI/CD, AWS, Azure, Google Cloud, PyTorch, Sagemaker, Triton, TensorRT, NoSQL
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Software Engineer, Ads Manager
Seattle, Washington, United States
$230k-$385k/yr HybridFull Time
OpenAI
OpenAI: Develops artificial intelligence models and generative AI software services.
7+ YOE7+ years building high-scale systems; experience with Python/FastAPI and TypeScript/React; advertiser-facing platforms; privacy and safety focus.
Python, FastAPI, TypeScript, React
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2w
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Full Stack Software Engineer III - Network Perimeter & CDN
Seattle, Washington, United States
$133k-$185k/yr OnsiteFull Time
JPMorgan Chase
JPMorgan ChaseNYSE: JPM: Global financial services firm providing banking and investment solutions.
3+ YOE3+ years applied software engineering experience, strong Python, API development with Django/FastAPI, distributed systems and messaging (RabbitMQ), cloud experience with AWS, secure SDLC and CI/CD, ability to mentor and lead via code reviews, and experience with AI-assisted development tools.
Python, Django, FastAPI, RabbitMQ, Amazon Web Services (AWS), Terraform, Cloudflare, Akamai, React
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2mo
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Principal Backend Engineer
Seattle, Washington, United States
OnsiteFull Time
Data Squared
Data Squared: Explainable AI platform for high-stakes enterprise data decision-making.
Testing backend systems; Python development; pytest; FastAPI; Docker; Kubernetes; graph data testing.
Python, pytest, FastAPI, Docker, Kubernetes, Neo4j, Memgraph
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3d
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Senior AI Engineer
Seattle or Cambridge or Princeton or Madison
$138k-$183k/yr OnsiteFull Time
Bristol Myers Squibb
Bristol Myers SquibbNYSE: BMY: Develops and manufactures innovative prescription biopharmaceutical medicines.
5+ YOEBachelor's degree,5+ years building and scaling cloud-native AI applications,proficiency in Python/FastAPI or TypeScript/Node,AWS experience,LLM/agent integration,CI/CD and infra-as-code knowledge.
AWS, Claude, LangSmith, Python, FastAPI, TypeScript, Node, LangGraph, Claude Agent SDK, LangChain, PydanticAI, Anthropic, OpenAI, Gemini, Grok, AWS Bedrock, Terraform, AWS CDK, CloudFormation, GitHub, Claude Code, Codex, Gemini CLI, Cursor, Windsurf, GitHub Copilot, LangSmith, promptfoo
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1w
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Senior Software Engineer - Growth (Fullstack)
Seattle, Washington, United States
$180k-$210k/yr HybridFull Time
Read AI
Read AI: AI productivity platform for meeting summaries and workplace insights.
5+ YOE5+ years full-stack experience; TypeScript/React and Python/FastAPI; SQL; A/B testing/experimentation experience; mentoring experience; strong ownership and cross-functional collaboration.
TypeScript, React, Python, FastAPI, SQL, Zoom, Microsoft Teams, Google Meet, Slack
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2w
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Senior Software Engineer II
Seattle, Washington, United States
$164k-$221k/yr OnsiteFull Time
Nautilus Biotechnology
Nautilus BiotechnologyNASDAQ: NAUT: Develops a single-molecule protein analysis platform for research.
5+ YOE5+ years software engineering experience, bachelor’s in computer science or related, strong with Python/FastAPI, React/TypeScript, AWS, relational databases; Parquet and AWS Athena familiarity preferred.
Python, FastAPI, React, TypeScript, AWS, Parquet, AWS Athena
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Software engineer, generative AI
San Francisco or New York City or Seattle or Austin or Chicago or London
$112k-$304k/yr HybridFull Time
Writer
Writer: Platform for building and deploying enterprise generative AI agents.
3+ YOEMinimum 3 years software engineering experience with strong Python production experience; experience building generative AI/LLM applications, vector DBs (Pinecone, Weaviate, pgvector), microservices, cloud (AWS/GCP/Azure), Docker/Kubernetes, FastAPI/Asyncio, and PostgreSQL.
Python, Pinecone, Weaviate, pgvector, Docker, Kubernetes, FastAPI, Asyncio, PostgreSQL, Claude, Cursor, GitHub Copilot, React, TypeScript, AWS, GCP, Azure, LLMs, RESTful APIs, IAM, SSO, SAML, OAuth, OIDC, RBAC
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1w
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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
CoreWeave
CoreWeaveNASDAQ: CRWV: Specialized cloud infrastructure provider for high-performance AI workloads.
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
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2mo
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Software Engineer II
Glendale or Seattle or New York
$118k-$158k/yr HybridFull Time
The Walt Disney Company
The Walt Disney CompanyNYSE: DIS: Produces movies, operates theme parks, and provides streaming services.
3+ YOE3+ years backend development experience; AI/ML engineering knowledge; API design and cloud deployments; strong communication and collaboration.
FastAPI, Flask, PyTorch, TensorFlow, GitHub, Docker, AWS, EKS, LangChain, LangGraph
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Software Engineer II
Glendale or New York City or Seattle
$118k-$158k/yr HybridFull Time
The Walt Disney Company
The Walt Disney CompanyNYSE: DIS: Produces media content and operates global theme parks.
3+ YOEBachelor’s degree in Computer Science or Engineering; 3+ years backend or AI-driven development; experience with API design and cloud deployments; strong collaboration and problem-solving skills.
FastAPI, Flask, PyTorch, TensorFlow, GitHub, Docker, AWS, EKS, LangChain, LangGraph, Claude, GPT-4, PySpark, Pandas, Datadog, Grafana, Conviva, Snowflake, Databricks
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1mo
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Staff Software Engineer, AI Agentic Experience (Auth0)
Bellevue or San Francisco or California or Colorado or Illinois or New York or Washington
$174k-$238k/yr HybridFull Time
Okta
OktaNASDAQ: OKTA: Provide secure identity management and authentication for enterprises.
Proven software engineering experience building developer tools/platforms; proficiency in JavaScript/TypeScript, Golang, or Python; experience with LLM APIs, agent runtimes, and auth standards (OAuth2, OIDC, JWT); architecture leadership and strong documentation skills.
JavaScript, TypeScript, Golang, Python, React, Next.js, FastAPI, LLM APIs, Token Vault, Async Authorization, Fine-Grained Authorization (FGA), MCP servers
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1w
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Senior Software and AI Engineer
Livingston or New York or Sunnyvale or San Francisco or Bellevue
$182k-$242k/yr OnsiteFull Time
CoreWeave
CoreWeaveNASDAQ: CRWV: Cloud platform providing GPU-accelerated infrastructure for AI workloads.
3+ YOE3+ years professional programming; full‑stack development with React/TypeScript and backend services in Node.js or Go; experience with GenAI/LLM frameworks (LangChain, ChatGPT API, Glean API); cloud, Kubernetes, and CI/CD familiarity.
Workato, LangChain, LangGraph, ChatGPT agentflow, ChatGPT API, OpenAI API, Gemini agent flow, Glean API, React, TypeScript, Node.js, Go, Python, C++, C#, Java, FastAPI, gRPC, Next, Cursor, Claude, Copilot, ChatGPT Codex, Ray, Kafka, Spark, Kubernetes, AWS, Azure, GCP, Workato, Boomi, ERP, HRIS, DCIM, Data Warehouse
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3w
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Sr Software Engineer, Data Science
Seattle, Washington, United States
$165k-$180k/yr HybridFull Time
ExtraHop
ExtraHop: Provides network detection and response software for cybersecurity.
7+ YOEBachelor's degree or equivalent; 7+ years backend development experience (≥2 years at senior level); strong in Go or Python; experience with ML/model lifecycle, production AI/ML systems, distributed systems, cloud (AWS/GCP), Kubernetes/Docker, and Git.
Python, Golang, Go, TypeScript, React, AWS, GCP, Terraform, Django, FastAPI, EKS, RDS, S3, SQS, EC2, IAM, Packer, Vault, Kubernetes, Docker, Git, PostgreSQL, SQL
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4d
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Software Engineer - AI
Seattle or Research Triangle Park
$147k-$215k/yr HybridFull Time
Cisco
CiscoNASDAQ: CSCO: Develops and sells networking hardware and cybersecurity software.
7+ YOE7+ years enterprise software engineering experience, bachelor’s degree in CS or related, experience with agentic AI, cloud-native systems, security, and CI/CD; strong communication and leadership skills.
LangGraph, MCP, vector databases, Kubernetes, Angular, TypeScript, Python, FastAPI
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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
PwC
PwC: Providing audit, tax, and management consulting services to businesses.
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
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2mo
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Software Engineer - Sr. Consultant level
Bellevue, Washington, United States
$152k-$244k/yr HybridFull Time
Visa
VisaNYSE: V: Global payment technology facilitating electronic funds transfers.
8+ YOE8+ years of backend experience; strong Java/Spring Boot, Python; experience with microservices, distributed systems, GenAI/RAG, and cloud platforms.
Java, Spring Boot, Python, FastAPI, Flask, TypeScript, Kubernetes, Docker, ArgoCD, Jenkins, GitHub Actions, SQL, NoSQL, Kafka, RabbitMQ, Pinecone, FAISS, Weaviate, LangChain, LangGraph, Autogen, LlamaIndex, React, GraphQL
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1w
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Data and AI Fullstack Engineer
Bellevue or Charlotte
$110k-$198k/yr HybridFull Time
Siemens
SiemensXETRA: SIE: Manufactures industrial automation, infrastructure, and energy technology systems.
12+ YOESenior full‑stack engineer with extensive experience building cloud‑native microservices, data and AI platforms, RAG/Agentic AI knowledge, AWS experience, and mentoring/technical leadership skills.
Python, Java, TypeScript, NodeJS, AWS, EKS, SQS, Bedrock, Agent Core, SageMaker, Strands, Langgraph, LangChain, FastAPI, Open Telemetry, GitLab, npm, SonarQube, Terraform, Helm, Postman, Newman, JMeter, SQL, NoSQL
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1w
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Software Engineering SMTS - Agentforce Reasoning Engine
San Francisco or Seattle
$149k-$224k/yr HybridFull Time
Salesforce
SalesforceNYSE: CRM: Sells cloud-based customer relationship management and business software solutions.
4+ YOE4+ years building production AI systems/backend services, strong Python and async (FastAPI) skills, experience with Redis, Kafka, Docker/Kubernetes, LLM integration and prompt engineering; related technical degree required.
Python, FastAPI, Redis, Kafka, Docker, Kubernetes, LLMs
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