1,428 fastapi developer jobs at 640 companies in United States
Backend Engineer (Python/FastAPI)
United States
$200-$300/hr RemoteContract
3+ YOE3+ years software engineering experience; strong Python expertise; full-stack development; software architecture and code quality; excellent communication; must be based in the United States.
Python, FastAPI, JavaScript, ReactJS, C/C++, Java, Rust, Go
Python Developer
Denver or Chicago or Washington or Charlotte
$30-$40/hr OnsiteFull Time, Temporary
Apex Systems LLC: N/A
5+ YOE5+ years Python development in enterprise; Python Django, Angular, ES6/HTML5/CSS3, MySQL, Git, unit testing, Agile, FastAPI, Kafka or RabbitMQ; onsite full-time.
Python, Django, Angular, ES6, HTML5, CSS3, MySQL, Git, FastAPI, Kafka, RabbitMQ, .NET Core, Jenkins, MSBuild, Ansible, XLR
Python Fullstack Developer
Iselin, New Jersey, United States
HybridFull Time
4+ YOE4-7 years Python development experience; Azure, Celery, FastAPI, machine learning, Kubernetes, Docker, CI/CD, PostgreSQL; Node.js preferred.
Python, Azure, Celery, FastAPI, Kubernetes, Docker, CI/CD, PostgreSQL, Node.js
Senior Developer
Hyderabad or New York City
OnsiteFull Time
5+ YOE5+ years in software development and 2+ years in GenAI or NLP; proficiency in Python, FastAPI, asyncio, Hugging Face, OpenAI APIs, LangChain, vector databases, and MLflow.
LangChain, Pinecone, Weaviate, MLflow, Docker, Kubernetes, Python, FastAPI, asyncio, Hugging Face, OpenAI APIs, ChatGPT, GitHub Copilot, Microsoft Teams, CI/CD, RAG
Senior Python Developer
Hartford, Connecticut, United States
$80k-$90k/yr HybridFull Time
5+ YOEBachelor's degree in computer science, mathematics or related field; 5+ years Python backend development; FastAPI, lxml, SQL; HIPAA knowledge; QA methodologies; US healthcare interoperability preferred.
Python, FastAPI, lxml, SQL, XPath
Senior Python Engineer
Washington, District of Columbia, United States +1 more
$125k-$145k/yr OnsiteFull Time
8+ YOEBachelor's degree in Computer Science or related field; 8+ years Python development; expertise in FastAPI, PostgreSQL, Pydantic, PyTest; secure software development; ability to work in US without sponsorship.
Python, FastAPI, OpenAPI, Swagger, PostgreSQL, SQL, Pydantic, PyTest, Importlib, Microsoft Azure, Azure App Services, Azure DevOps, CI/CD, Generative AI
Rhapsody Developer
Trenton, New Jersey, United States
HybridFull Time, Contract
3+ YOEPEGA Business Architect certification required; 3+ years Rhapsody development; 2+ years FHIR and HL7 v2; strong FastAPI, Flask, or Django; deep FHIR/HL7 understanding; familiarity with FHIR servers; hybrid schedule in Trenton, NJ.
Rhapsody, FastAPI, Flask, Django, FHIR, HL7 v2, HAPI FHIR, Firely, AWS FHIR APIs, SOAP, SFTP, RESTful APIs, JSON, XML, SQL, PostgreSQL, Oracle, DevOps, HIPAA, SNOMED CT, LOINC, ICD-10
Software Engineer
Toronto or New York City
RemoteFull Time
1+ YOE1-4 years full-stack web development experience; proficiency with TypeScript, React, Python/FastAPI, Postgres, AWS; experience with APIs, state machines, and customer-facing iteration.
TypeScript, React, Python, FastAPI, Postgres, AWS
Software Developer
Cortland, New York, United States
$55k-$70k/yr OnsiteFull Time
3+ YOE3-5 years professional software development; strong Python 3.10+, Django/FastAPI/Flask, relational databases (SQL Server, PostgreSQL, MySQL), RESTful APIs, system design, Git, front-end HTML/CSS/JS; Bachelor's in CS or equivalent.
Python, Django, FastAPI, Flask, SQL Server, PostgreSQL, MySQL, Django ORM, SQLAlchemy, REST, HTML, CSS, JavaScript, htmx, Tailwind CSS, Git, Windows Server, IIS, Docker, Azure, AWS, Django-Q, Celery, RQ, GitHub Actions, pandas, OR-Tools
Full Stack Developer
Suitland, Maryland, United States
OnsiteFull Time
3+ YOEActive TS/SCI clearance; 3+ years software development; strong Python (Django, FastAPI) and React/Next.js; PostgreSQL; AWS; Git workflows; CI/CD; security-minded engineering.
Python, Django, FastAPI, React, Next.js, PostgreSQL, AWS, Terraform, GitLab, Keycloak, OIDC, SAML, JWT, RBAC, Kubernetes, EKS, Helm, Pydantic
Application Developer - Mid Level
Arlington, Virginia, United States
OnsiteFull Time
4+ YOE4+ years developing with Python, SQL, REST APIs; experience with Flask/FastAPI, Vue.js, Git, automated testing; ability to obtain DoD Secret clearance; bachelor's degree in engineering; travel required.
Python, SQL, REST APIs, Flask, FastAPI, Vue.js, JavaScript, TypeScript, Git, Claude Code, ChatGPT, Codex, Microsoft Word, Microsoft Excel, Microsoft PowerPoint, Microsoft SharePoint
Full Stack Developer
Fort Meade or Columbia
$150k-$190k/yr OnsiteFull Time
8+ YOEBachelor's degree in a technical discipline or equivalent experience, 8 years of software development, production APIs, Django/Flask/FastAPI, Docker, Kubernetes, Helm, CI/CD, databases, Git, Jira, and Confluence.
Django, Flask, FastAPI, Docker, Kubernetes, Helm, CI/CD, SQL, NoSQL, PostgreSQL, MySQL, Elasticsearch, MongoDB, Git, Jira, Confluence
Software Engineer Level 5
Norfolk, Virginia, United States
OnsiteFull Time
14+ YOEActive TS/SCI with CI Polygraph; U.S. citizenship; backend development, data engineering, API development; Python, FastAPI, PostgreSQL, Elasticsearch; education/experience equivalency (e.g., Bachelor's with 14 years).
Python, FastAPI, PostgreSQL, Elasticsearch
AI Research Engineer
New York, New York, United States
$180k-$300k/yr OnsiteFull Time
5+ YOERequires 5+ years of software engineering experience, backend development, experimentation, Python, FastAPI, AWS, ECS or Kubernetes, Postgres, S3, and observability tools.
Python, FastAPI, AWS, ECS, Kubernetes, Postgres, S3
Senior Software Developer
San Diego, California, United States
$130k-$155k/yr HybridFull Time
5+ YOEBachelor's or master's in computer science or related field; 5+ years production software development; Python, SQL, FastAPI; Agile/Scrum/DevOps; Azure DevOps, Jira; CI/CD; Azure or AWS; pre-employment drug and background screening.
Python, SQL, FastAPI, Azure DevOps, Jira, Azure, AWS
Senior Software Engineer
United States
$165k-$185k/yr RemoteFull Time
5+ YOE5+ years building production software; experience with web development, Vue.js, TypeScript, FastAPI, Python, Postgres, AWS, testing, code reviews, design documentation, and cross-functional collaboration.
Vue.js, TypeScript, FastAPI, Python, Postgres, AWS
Senior Software Engineer, AI Developer Experience
Boston, Massachusetts, United States
$140k-$176k/yr HybridFull Time
5+ YOE5+ years full-stack development with 3+ years Python; AWS experience; production AI framework exposure (FastAPI, Anthropic, LangChain/LangGraph, LangFuse, Evals); modern AI coding tools; OAuth2/OIDC knowledge; Bachelor's in Computer Science or equivalent.
Python, AWS, FastAPI, Anthropic, LangChain, LangGraph, LangFuse, Evals, MCP, OAuth2/OIDC, Java, JavaScript, Terraform, Keycloak, Claude Code
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