16 senior fastapi developer jobs at 11 companies in Connecticut
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Senior Software Engineer
New York City or Arizona or California or Colorado or Connecticut or Florida or Georgia or Maine or Maryland or Massachusetts or Michigan or Minnesota or New Jersey or New York or North Carolina or Oregon or Rhode Island or South Carolina or Tennessee or Texas or Virginia or Utah or Wisconsin
$165k-$185k/yr RemoteFull Time
8+ YOE8+ years backend experience with modern Python stack, leadership experience, proficiency in Postgres/SQLAlchemy, AWS, Terraform, FastAPI, React/TypeScript, observability, and familiarity with AI-assisted development.
Python, FastAPI, Pydantic, PostgreSQL, SQLAlchemy, Alembic, Temporal, Redis, AWS RDS, AWS S3, AWS SQS, AWS DynamoDB, AWS ECS, AWS IAM, Terraform, React, TypeScript, Claude Code
2mo
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Senior Research Engineer - Experimental Engineering
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
Senior research engineer with deep full-stack software engineering experience, strong applied AI/ML knowledge, prototyping and R&D experience, Python/FastAPI and frontend (React/React Native) familiarity, and ability to lead experiments and mentor engineers.
AI, Machine Learning, Python, FastAPI, React, React Native, RAG
1mo
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Senior AI Engineer
United States or New York City or Palm Beach or Los Angeles or Miami or Greenwich or Westchester County or The Hamptons or San Francisco or Manhattan
$190k-$250k/yr RemoteFull Time
4+ YOE4+ years building and operating LLM-powered production ML systems, strong Python, backend framework experience (FastAPI/Flask), LLM orchestration and retrieval design, Snowflake/dbt/Dagster/Airflow familiarity, evaluation systems, HIPAA/PHI knowledge, and strong written communication.
Python, FastAPI, Flask, Snowflake, dbt, Dagster, Airflow, vLLM, Triton, TGI, SGLang, LOINC, SNOMED CT, ICD-10, RxNorm, FHIR, HL7
1mo
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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
3w
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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
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
2w
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Senior Software Development Engineer - Microservices
Hartford, Connecticut, United States
$102k-$204k/yr HybridFull Time
5+ YOE2+ Mgmt5+ years software engineering, 2+ years technical lead experience; strong Python and API framework skills; experience with microservices, GCP, Kubernetes/GKE, Docker, CI/CD, Kafka, BigQuery/BigTable/SQL; hands-on GenAI/LLM/RAG/Agentic AI and prompt engineering.
Python, FastAPI, Flask, Google Cloud Platform (GCP), Kubernetes (GKE), Docker, CI/CD, GitHub, Kafka, BigQuery, BigTable, SQL, Gemini, Vertex AI, OpenAI, Claude
1d
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Senior Software Engineer (Full Stack)
Alabama or Arkansas or Arizona or California or Colorado or Connecticut or Delaware or Florida or Georgia or Illinois or Indiana or Kentucky or Louisiana or Maryland or Maine or Michigan or Minnesota or Missouri or North Carolina or New Hampshire or New Jersey or New York or Ohio or Oregon or Pennsylvania or South Carolina or Tennessee or Texas or Utah or Virginia or Vermont or Washington
RemoteFull Time
5+ YOE5+ years building production full‑stack applications; strong JavaScript/TypeScript and React experience, backend skills (PHP/Node/Python), cloud and DevOps knowledge, API and database expertise, strong communication and systems design.
JavaScript, TypeScript, React.js, Vue.js, Angular, HTML5, CSS3, SASS, PHP, Node.js, Python, Django, FastAPI, PostgreSQL, MySQL, MongoDB, DynamoDB, Redis, AWS, GCP, Azure, Docker, Kubernetes, GitHub Actions, Jenkins, GitLab, Claude Code, Cursor, Copilot
6d
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AI Engineer/Architect
Bloomfield or Raleigh or Lafayette
$81k-$218k/yr HybridFull Time
12+ YOE12+ years software engineering and architecture experience, 5+ years in AI/ML with production generative and agentic AI; expert Python and FastAPI; experience with LangGraph, LangSmith, RAG, embeddings, vector search, observability, cloud-native architecture, and leading technical teams.
Python, FastAPI, LangGraph, LangSmith, Databricks
2mo
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Lead Software Engineer (Python, LLM) - AskGartner
Irving or Stamford
$116k-$170k/yr HybridFull Time
Expert-level Python; backend services; FastAPI; AWS/Azure; SageMaker Pipelines; Pytest; PostgreSQL; Pandas; Git.
Python, Python FastAPI, AWS, Azure, AWS SageMaker Pipelines, pytest, Git, PostgreSQL, Parquet, JSON, CSV, Pandas, LangGraph, LangChain, OpenAI, Anthropic, Google, Locust, JMeter, AWS Athena, AWS S3, IAM, Splunk, AWS Secrets Manager, PySpark, Docker, Kubernetes, Terraform, OpenSearch, RAG systems, Cache technologies
1w
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Backend Software Engineer - Assistant Vice President
Greenwich or New York City
$130k-$170k/yr HybridFull Time
6+ YOEDegree in software engineering,6+ years web application development,experience with Python/Scala/Node.js,knowledge of relational/NoSQL modeling,testing and SSO familiarity.
Scala, Ruby, Node.js, Python, FastAPI, ZIO, Scala Test, ZIO Test, PyTest
1mo
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Full Stack Staff Software Engineer — AI-Augmented Development
Charlotte or Hartford or Columbus or Chicago
$116k-$174k/yr HybridFull Time
10+ YOE10+ years software engineering experience, 5+ years tech lead experience; Bachelor’s in CS or related (or equiv. experience); expertise in frontend and backend stacks, cloud (AWS/GCP), CI/CD, databases, APIs, and AI-augmented development tools.
React, Angular, Vue.js, TypeScript, HTML5, CSS3, Java, Spring Boot, Node.js, Express, Python, FastAPI, Django, .NET, RESTful APIs, GraphQL, gRPC, AWS, GCP, AWS Bedrock, GCP Vertex, Vertex Studio, Docker, Kubernetes, Jenkins, GitHub Actions, GitLab CI, SQL, NoSQL, PostgreSQL, MongoDB, DynamoDB, Redis, Kafka, RabbitMQ, GitHub Copilot, Cursor, Claude Opus, OpenAI, Anthropic, LangChain, Semantic Kernel, AutoGen, CrewAI
1mo
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Staff Software Engineer - Hybrid
Charlotte or Hartford or Columbus
$116k-$174k/yr HybridFull Time
6+ YOE6+ years software engineering experience, Bachelor's in CS or related (or equivalent), authorized to work in US without sponsorship, hands-on Generative/Agentic AI and LLM experience, Python and/or Java, AWS services, Angular, Terraform, CI/CD (Jenkins/GitHub Actions), strong design and leadership skills.
Large language models (LLMs), Retrieval-augmented generation (RAG), LangChain, LangGraph, CrewAI, AutoGen, Python, Java, AWS, Lambda, DynamoDB, S3, SQS, SNS, API Gateway, ALB, Step Functions, IAM, Angular, Terraform, Jenkins, GitHub Actions, Guidewire ClaimCenter, FastAPI, Flask, Spring Boot, Docker, ECS, EKS, CloudWatch, Datadog, Splunk, pytest, JUnit, Karate
1mo
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Full Stack Staff Software Engineer — AI-Augmented Development
Charlotte or Hartford or Columbus or Chicago
$116k-$174k/yr HybridFull Time
10+ YOE10+ years software engineering experience, 5+ years full-stack tech lead experience, BS in CS or equivalent, expertise in frontend/backend/cloud, AI-augmented development proficiency, strong testing and architecture skills.
React, Angular, Vue.js, TypeScript, Java, Spring Boot, Node.js, Express, Python, FastAPI, Django, .NET, RESTful APIs, GraphQL, gRPC, AWS, GCP, Docker, Kubernetes, PostgreSQL, MongoDB, DynamoDB, Redis, Kafka, RabbitMQ, Jenkins, GitHub Actions, GitLab CI, GitHub Copilot, Cursor, Claude Opus, OpenAI, Anthropic, GCP Vertex, AWS Bedrock, Vertex Studio, Semantic Kernel, CrewAI, LangChain, AutoGen
1mo
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Staff Software Engineer - Hybrid
Charlotte or Columbus or Hartford
$116k-$174k/yr HybridFull Time
6+ YOE6+ years software engineering experience, Bachelor's degree or equivalent, US work authorization, hands-on Generative/Agentic AI and LLM experience, proficiency in Python and/or Java, AWS and Terraform experience, Angular and CI/CD familiarity.
LangChain, LangGraph, CrewAI, AutoGen, Python, Java, Amazon Web Services (AWS), Lambda, DynamoDB, S3, SQS, SNS, API Gateway, ALB, Step Functions, IAM, Angular, Terraform, Jenkins, GitHub Actions, Guidewire ClaimCenter, FastAPI, Flask, Spring Boot, Docker, ECS, EKS, CloudWatch, Datadog, Splunk, pytest, JUnit, Karate, vector databases, RAG
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Agentic AI Architect - Intelligence Engineering (East)
Atlanta or Boston or Charlotte or Hartford or Miami or New Brunswick or New York City or Philadelphia or Raleigh or Washington
$108k-$218k/yr HybridFull Time
5+ YOE5+ years software engineering experience with 2+ years on generative/agentic AI; experience designing multi-agent systems, RAG, cloud AI platforms, Python and API frameworks, evaluation and governance for production AI systems.
Amazon Web Services, Azure, Google Cloud, AWS Bedrock, Azure AI Foundry, OpenAI Service, GCP Vertex AI, Gemini, Databricks, Lang Graph, Strands Agents SDK, OpenAI Agents SDK, Google ADK, Model Context Protocol (MCP), LangSmith, RAGAS, DeepEval, Claude Code, Cursor, Kiro, Python, FastAPI, Flask
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