65 fastapi developer jobs at 41 companies in Webster, MA
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Python AWS Developer
Hartford or Lafayette
$81k-$172k/yr HybridFull Time
6+ YOE6+ years Python backend development, REST API (FastAPI/Flask), strong SQL, hands-on AWS (Lambda,S3,SQS,DynamoDB,EC2,EKS), CI/CD and production support experience.
Python, FastAPI, Flask, AWS Lambda, Amazon S3, Amazon SQS, DynamoDB, Amazon EC2, Amazon EKS, Boto3, CloudWatch, Jenkins, GitHub Actions, Terraform, CloudFormation, OpenShift, Kubernetes, PostgreSQL, Aurora, Java, ReactJS, Spring Boot, SQL
1w
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Senior Software Engineer
Framingham, Massachusetts, United States
HybridFull Time
7+ YOE7+ years software development experience; bachelor's in CS/EE or related; proficiency in distributed systems and AWS; Python and FastAPI/Nuxt/Celery experience; mentoring and strong communication.
AWS, Python, FastAPI, Nuxt, Celery, MQTT
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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Senior Software Engineer, Lab Software
Cambridge, Massachusetts, United States
$144k-$210k/yr OnsiteFull Time
5+ YOESenior backend-focused software engineer with 5-8+ years of experience building large-scale systems; full-stack development; Python, FastAPI, React, TS, SQL/NoSQL; cloud, AWS, Kubernetes; collaboration with scientists.
React, TypeScript, Tailwind, FastAPI, SQL, NoSQL, Python, Pydantic, AWS, Kubernetes, Terraform, CloudFormation, GitHub Actions, Airflow, Prefect, Temporal, Dagster
3w
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Senior AI Engineer
Seattle or Cambridge or Princeton or Madison
$138k-$183k/yr OnsiteFull Time
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
1mo
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Senior Software Engineer
Somerville or Washington
$160k-$190k/yr HybridFull Time
5+ YOEBachelor's in CS/Math/Engineering/Science, 5+ years full-stack/backend experience, cloud microservices, cryptography, Istio, FastAPI, Docker, Helm, SQL/NoSQL, CI/CD, automated testing, strong communication.
Istio, FastAPI, Docker, Helm, OAuth2, IETF RFCs, SQL, NoSQL
3w
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Senior AI Engineer
Seattle or Madison or Princeton or Cambridge
$138k-$183k/yr OnsiteFull Time
5+ YOE5+ years building cloud-native AI applications integrating LLMs, agents, retrieval, and workflows; strong Python/FastAPI or TypeScript/Node skills; AWS experience; knowledge of secure, observable, production AI patterns.
Python, FastAPI, TypeScript, Node, LangGraph, Claude Agent SDK, LangChain, PydanticAI, MCP, FastMCP, Anthropic, OpenAI, Gemini, Grok, AWS Bedrock, AWS, Terraform, AWS CDK, CloudFormation, GitHub, LangSmith, promptfoo, Claude Code, Codex, Gemini CLI, Cursor, Windsurf, GitHub Copilot
1mo
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Forward Deployed Engineer
Cambridge, Massachusetts, United States
$100k-$130k/yr HybridFull Time
Full-stack engineer experienced with Python/FastAPI, PostgreSQL, AWS, and a modern JS framework; strong client-facing experience and ability to deliver production-ready customer solutions.
Python, FastAPI, PostgreSQL, AWS, Svelte, React, Vue
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 Software Engineer - Product
Yonkers or Washington or Colchester or Arizona or California or Connecticut or Illinois or Maryland or Massachusetts or Michigan or New Hampshire or New Jersey or New York or Texas or Vermont or Virginia or District of Columbia
$115k-$160k/yr RemoteFull Time
5+ YOE5+ years software engineering experience; proficiency with React, React Native, Python (FastAPI); experience building multi-platform apps, CI/CD, automated testing, observability; strong communication; bachelor’s degree preferred.
React, React Native, Python, FastAPI, AWS, Azure, Google Cloud Platform, CI/CD
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
1mo
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AIML Software Engineer, AI for Science
London or San Francisco or Zug or Heidelberg or Cambridge
$136k-$227k/yr HybridFull Time
Degree in a quantitative/engineering discipline or equivalent experience; advanced Python and FastAPI programming; experience with GCP/Azure and cloud-native architectures; familiarity with PyTorch/JAX/TensorFlow, CI/CD, containerization, SQL and production monitoring.
Python, FastAPI, GCP, Azure, PyTorch, JAX, TensorFlow, CI/CD, Kubernetes, Google Kubernetes Engine, Cloud Run, Cloud Storage, Artifact Registry, Cloud SQL, SQL, Terraform, shell scripting
1mo
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Senior Software Development Engineer
Cambridge, Massachusetts, United States
$125k-$160k/yr HybridFull Time
8+ YOE8+ years software development experience, proven technical leadership, production experience with generative AI, cloud-native architectures, full-stack development, and a bachelor's in CS or equivalent practical experience preferred.
Python, JavaScript, TypeScript, C#, Java, React, Vue, Angular, Node.js, Express, FastAPI, Django, Flask, ASP.NET, Spring Boot, PostgreSQL, SQL Server, DynamoDB, MongoDB, LLM APIs, AWS, Azure, GCP, Docker, Kubernetes, Terraform, CloudFormation
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
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Staff Forward Deployed Engineer
Somerville or Weirton
$129k-$185k/yr HybridFull Time
8+ YOERequires 8+ years building production software, strong full-stack skills, AI-assisted development, data modeling, domain collaboration, Git, testing, CI/CD, Docker, and containerized deployment; Kubernetes is a plus.
React, Next.js, TypeScript, Python, FastAPI, PostgreSQL, SQLAlchemy, Git, Docker, Kubernetes, Snowflake, Oracle, Arena, Jama, Microsoft Entra ID, OIDC, dbt
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