39 senior fastapi developer jobs at 26 companies in Fall River, MA
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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
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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 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
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
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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
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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
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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
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Senior Software Engineer - Python
Boston or San Francisco
$110k-$270k/yr RemoteFull Time
5+ YOE5+ years production Python experience, enterprise SaaS and scalability expertise, hands-on with Python, Git, FastAPI, Pydantic; strong communication, mentoring, and problem-solving skills; unrestricted US work authorization required.
Python, Git, FastAPI, Pydantic
5d
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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
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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
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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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Full Stack Developer
United States or Canada or Boston
RemoteFull Time
5+ YOE5+ years full stack development with React/TypeScript/Next.js frontend and Python (FastAPI) or Node.js backend; experience with REST APIs, microservices, PostgreSQL, Docker/Kubernetes, cloud platforms (GCP/Azure), CI/CD, distributed systems, and LLM/RAG/Agentic AI integration.
React, TypeScript, Next.js, Python, FastAPI, Node.js, PostgreSQL, Docker, Kubernetes, GCP, Azure, GitHub Actions, Kafka, Pub/Sub, LangChain, LangGraph, LlamaIndex, Redis, pgvector, Pinecone, Milvus, WebSockets, Server-Sent Events (SSE), OpenTelemetry, Playwright, GraphQL, gRPC, CI/CD, Model Context Protocol (MCP), FHIR R4, HL7 v2, SMART on FHIR, Epic, OAuth 2.0, OIDC
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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
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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
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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
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
3mo
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Senior AI Infrastructure Platform Engineer, Assistant Vice President
Quincy or Austin
$90k-$158k/yr HybridFull Time
5+ YOELead/architect AI automation platforms; hands-on development with AI/ML, cloud, and DevOps; senior engineer capable of driving projects and collaborating with cross-functional teams.
Python, FastAPI, Unix, Docker, Postgres, Lang Chain, Lang Graph, Kubernetes, Databricks, API Management, AWS, Azure, OpenAI, Azure Foundry, Sagemaker, Lambda, EKS
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
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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 AI Infrastructure Platform Engineer, Assistant Vice President
Quincy or Austin
$90k-$158k/yr OnsiteFull Time
5+ YOELead GenAI/Agentic AI projects; strong full-stack development and architecture; collaboration with business and IT; experience with cloud and AI/ML tools.
Python, FastAPI, Unix, Docker, PostgreSQL, Lang Chain, Kubernetes, Databricks, API Management, AWS, Azure, OpenAI
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