38 senior fastapi developer jobs at 26 companies in Pawtucket, RI

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Senior Software Engineer, Lab Software
Cambridge, Massachusetts, United States
$144k-$210k/yr OnsiteFull Time
Lila Sciences
Lila Sciences: Develops an AI platform for autonomous scientific research and discovery.
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
2mo
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Senior Application Engineer
Seattle or Madison or Princeton or Cambridge Crossing
$138k-$183k/yr OnsiteFull Time
Bristol Myers Squibb
Bristol Myers SquibbNew York Stock Exchange: BMY: Develops and distributes innovative medicines for serious diseases.
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
Re:Build Manufacturing
Re:Build Manufacturing: Provides advanced engineering and US-based contract manufacturing services.
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
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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Senior Software Engineer
Somerville or Washington
$160k-$190k/yr HybridFull Time
VIA
VIA: Building secure, resilient digital infrastructure and AI solutions.
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
Bain & Company
Bain & Company: Provides global management consulting and strategy advisory services.
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
Paperless Parts
Paperless Parts: Cloud-based quoting software for custom part manufacturers.
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
Veeva Systems
Veeva SystemsNYSE: VEEV: Cloud-based software solutions for the global life sciences industry.
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
Nexamp
Nexamp: Provides community solar and energy storage solutions.
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
Mitsubishi Electric Iconics Digital Solutions
Mitsubishi Electric Iconics Digital Solutions: Provides industrial automation, SCADA, and IoT software solutions.
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
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
1mo
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Full Stack Developer
United States or Canada or Boston
RemoteFull Time
Quantiphi
Quantiphi: Provides applied AI research and data engineering services.
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
2mo
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Staff Software Engineer (Backend)
Boston or Cambridge
HybridFull Time
Axiomatic AI
Axiomatic AI: Verified AI platform for scientific and engineering hardware design.
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
New York City or Boston or San Francisco
$160k-$200k/yr RemoteFull Time
Roebling
Roebling: AI-native capital project planning platform for industrial infrastructure.
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
1mo
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Senior Lead AI Software Engineer
Boston, Massachusetts, United States
$216k-$324k/yr HybridFull Time
Klaviyo
KlaviyoNYSE: KVYO: Software platform for automated e-commerce marketing and customer data.
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
Boston Consulting Group
Boston Consulting Group: Global management consulting firm specializing in business strategy and transformation.
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
State Street
State StreetNYSE: STT: Provides investment servicing and management to institutional investors.
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
Analog Devices
Analog DevicesNASDAQ: ADI: Designs and manufactures semiconductors for signal processing and power management.
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
1mo
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Founding Machine Learning Engineer
Boston, Massachusetts, United States
OnsiteFull Time
OneScreen.ai
OneScreen.ai: Platform for buying and measuring out-of-home advertising.
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
State Street
State StreetNYSE: STT: Provides investment management and custody services to institutional investors.
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