36 fastapi developer jobs at 27 companies in Bourne, MA
2w
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Python Full Stack Developer
Boston or Princeton
$76k-$120k/yr OnsiteFull Time
Bachelor's or equivalent experience; strong Python and React JS skills; RESTful API development (FastAPI/Flask/Django); strong SQL/RDBMS knowledge; good communication and SDLC experience.
Python, React JS, FastAPI, Flask, Django, SQL Server, Oracle, PostgreSQL, MySQL, JavaScript
2mo
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Principal Software Engineer - Python
Boston, Massachusetts, United States
$150k-$300k/yr RemoteFull Time
12+ YOE12+ years of production Python development; enterprise SaaS; open-source tools; FastAPI; Pydantic; strong English communication; unrestricted right to work in the United States.
Python, Git, FastAPI, Pydantic
2mo
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Staff Software Engineer (Backend)
Boston or Cambridge
HybridFull Time
10+ YOE10+ years backend development with 2+ years in a staff/principal role; deep Python and FastAPI experience; distributed systems, SQLAlchemy/PostgreSQL, GCP, AI/LLM integration, technical leadership, RFCs and architecture design.
Python, FastAPI, SQLAlchemy, Pydantic AI, FastMCP, Alembic, PostgreSQL, Redis, REST, WebSockets, SSE, MCP, Anthropic Claude, Google Gemini, OpenAI, Vertex AI Model Garden, Mistral OCR, Google Cloud Platform, Cloud Run, Cloud SQL, GCS, VPCs, IAM, Auth0, Terraform, Docker, GitHub Actions, Logfire, Sentry, OpenTelemetry, pytest, pytest-asyncio, pytest-cov
2mo
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Automation Engineer - Scientific Data, AI/ML Pipelines & Integration Dev
Boston, Massachusetts, United States
HybridFull Time
3+ YOEProficient in Python with FastAPI, SQL/NoSQL, AWS, CI/CD, data pipelines, and lab informatics.
Python, FastAPI, Flask, Django, AWS, S3, EC2, Lambda, Step Functions, RDS, Aurora, IAM, monitoring, logging, Git, GitHub Actions, GitLab CI, Jenkins, CI/CD, PyTest, unittest, mocking, pandas, NumPy, scikit-learn
1mo
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Senior Software Engineer
Boston or Encinitas
$142k-$192k/yr OnsiteFull Time
5+ YOE5+ years experience building full-stack web applications; strong Python (Django/FastAPI), TypeScript/React, AWS, PostgreSQL, Docker, and CI/CD (Jenkins) experience; API design and mentoring skills; US citizenship or green card required.
Python, Django, FastAPI, TypeScript, React, PostgreSQL, AWS, Docker, Jenkins, Node/Express, Java/Spring
2mo
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Senior Application Engineer
Seattle or Madison or Princeton or Cambridge Crossing
$138k-$183k/yr OnsiteFull Time
5+ YOE5+ years in software/cloud engineering; AWS-native; Python/FastAPI; TypeScript/Node; CI/CD; experience with LLM/agentic AI; MCP/FastMCP; security, IAM, VPC; knowledge of data stores.
Python, FastAPI, TypeScript/Node, AWS, Terraform, AWS CDK, CloudFormation, LangGraph, LangChain, PydanticAI, OpenAI, Anthropic, Gemini, AWS Bedrock
1w
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Senior Full Stack Software Developer
Boston, Massachusetts, United States
$170k-$190k/yr HybridFull Time
7+ YOE7+ years full stack experience with React, TypeScript, Python (Django/FastAPI), SQL, cloud platforms (Azure), Git, CI/CD, and Terraform; strong communication, debugging, and mentorship skills; financial modeling experience a plus.
React, TypeScript, Python, Django, FastAPI, SQL, Git, CI/CD, Terraform, Azure
1w
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Kearney Activate - Full Stack Developer
Washington or Arlington or Boston or United States
$90k-$130k/yr FieldFull Time
1+ YOEEarly-career full-stack developer with 1+ years (1–3 preferred) experience or equivalent projects; foundational React/TypeScript and Python, REST and SQL familiarity, Git, cloud and container exposure, strong communication and curiosity.
React, TypeScript, Python, REST, SQL, Git, FastAPI, Docker, AWS, Azure, Google Cloud, CI/CD
1w
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Kearney Activate - Full Stack Developer
Washington or Arlington or Boston or United States
$90k-$130k/yr OnsiteFull Time
1+ YOEEarly-career full-stack developer with 1–3 years of experience or equivalent aptitude; foundational React/TypeScript and Python, SQL, Git, REST API knowledge; ability to obtain U.S. Secret clearance; strong communication and client-facing skills.
React, TypeScript, Python, FastAPI, SQL, Git, Docker, AWS, Azure, Google Cloud, CI/CD, REST API
2mo
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Global IT Software Engineer - Senior Manager
Boston or London
$153k-$186k/yr OnsiteFull Time
6+ YOEBachelor's in CS/Engineering,6+ years software/IT experience,proven GenAI and SaaS implementation,frontend/backend development,cloud and infrastructure-as-code,automated testing and systems design expertise.
React, Python, Java, Typescript, Zypher, Pytest, AWS, Azure, CGP, Kubernetes, Helm, Terraform, pgvector, chromadb, Neo4J, GraphQL, Github Actions, Gitlab CI, RDS, Batch, Lambda, Fargate, Step Functions, SQS, SNS, FastAPI, NextJS, RabbitMQ, Kafka, Websockets, Server-Side Events, LLMs, APIs
2mo
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Senior Lead AI Software Engineer
Boston, Massachusetts, United States
$216k-$324k/yr HybridFull Time
12+ YOE12+ years software development, BA/BS in CS or equivalent, deep systems and architectural experience, AI-native proficiency, leadership of multi-team programs, experience with internal platforms and distributed systems.
Python, Django, FastAPI, TypeScript, React, MySQL, Redis, Memcached, RabbitMQ, Celery, Apache Kafka, Apache Pulsar, AWS, Terraform, Kubernetes, Anthropic, OpenAI, Google Models, Claude Code, Cursor, RAG pipelines
3d
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Frontend Engineer
Boston or Jersey City or New York
$85k-$135k/yr OnsiteFull Time
4+ YOERequires 4+ years of frontend engineering, deep Angular and strong TypeScript skills, Python API experience, Figma fluency, testing expertise, reactive state management, and daily AI coding assistant use.
Angular, TypeScript, RxJS, Angular CDK, Python, FastAPI, Figma, Jasmine, Jest, Cypress, Playwright, NgRx, Akita, WebSocket, SSE, D3.js, Chart.js, ngx-charts, CodeMirror, Monaco, Angular Material, Kendo UI, Module Federation, Nx, Storybook, CI, Figma Dev Mode
1mo
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Founding Machine Learning Engineer
Boston, Massachusetts, United States
OnsiteFull Time
Ownership of a production ranking/matching/recommendation system; strong Python (NumPy, Pandas, FastAPI, SQLAlchemy), SQL and modern data warehouse experience (BigQuery preferred); modeling and evaluation rigor for ranking and retrieval.
Python, NumPy, Pandas, FastAPI, SQLAlchemy, SQL, BigQuery, H3, PostGIS, GeoPandas, pgvector, FAISS, dbt
3mo
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Senior Software Engineer
New York City or Boston or San Francisco
$160k-$200k/yr RemoteFull Time
5+ YOE5–7 years shipping production software (startup scaling experience preferred), strong engineering fundamentals, end-to-end product instincts, and familiarity with AI-native agent tooling (Claude Code, Cursor) preferred.
React, Next.js, Redux, TailwindCSS, Vercel, FastAPI, PostgreSQL, Pydantic, Supabase, Claude Code, Cursor, Anthropic, Google model APIs, LangChain, LangGraph
2mo
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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
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
1mo
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Software Engineer - Business Analytics
San Diego or Boston
$100k-$125k/yr HybridFull Time
1+ YOEBachelor's or equivalent, 1+ years software/analytics engineering experience, strong programming fundamentals (Python/JavaScript/TypeScript/SQL), BI/dashboard and automation experience, U.S. citizenship and ability to obtain security clearance.
Python, JavaScript, TypeScript, SQL, React, Next.js, Node.js, Flask, FastAPI, Streamlit, Looker, Power BI, Tableau, Metabase, Retool, Cursor, Claude Code, GitHub Copilot, Rippling, Ashby, Salesforce, HubSpot, Jira, Confluence, Rho, Navan, AWS, GCP, Azure
1mo
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Senior Engineer, Software Development Engineering
Boston, Massachusetts, United States
$131k-$163k/yr HybridFull Time
2+ YOEMaster's in CS/CE (or equivalent) and 2 years software engineering experience; demonstrated expertise with Python and TypeScript/JavaScript, testing, containerization/Kubernetes, EKS/AKS, SQL/NoSQL, and frameworks like Fast API, Flask, or React.
Python, TypeScript, JavaScript, Kubernetes, EKS, AKS, Fast API, Flask, React, SQL, NoSQL
2mo
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Senior Platform Engineer
Atlanta or Boston or Chicago or Dallas or New York
HybridFull Time
6+ YOE6+ years backend platform engineering; Kubernetes, Python, Postgres, Kafka, Redis; security and AI tooling.
Python, FastAPI, Pydantic, SQLAlchemy, Alembic, PostgreSQL, Redis, Kafka, Docker, Kubernetes, OpenTelemetry, Prometheus, Helm, Vault, Azure Key Vault, Azure Monitor
3w
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Applied AI Engineer
Louisville or Dallas or Boston or New York City or Washington
$142k-$196k/yr OnsiteFull Time
5+ YOEBachelor's or Master's in quantitative field plus 3–5+ years software engineering; 5+ years Python production experience, LLM integration, API design, cloud, containers, CI/CD, and strong software engineering fundamentals.
Python, FastAPI, Flask, AWS, Google Cloud, Azure, Docker, Kubernetes, CI/CD, Git, Claude Code, Cursor, GitHub Copilot agents, LangChain, LlamaIndex, Pydantic AI, Kafka, OpenTelemetry, LangSmith, Arize, Terraform, Pulumi
1mo
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Full Stack Engineer
Cambridge or Somerville or Boston
$100k-$130k/yr HybridFull Time
3+ YOE3+ years full stack experience with Python and a modern JS framework, REST API and relational DB experience (PostgreSQL), data wrangling, shipped end-to-end products, able to work in-office 3 days/week.
Python, Svelte, React, Vue, FastAPI, PostgreSQL
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