78 senior fastapi developer jobs at 44 companies in Virginia
1mo
Save
Mark Applied
Hide
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
Save
Mark Applied
Hide
Senior Software Engineer - Front End Developer
Home, Virginia, United States
$91k-$178k/yr RemoteFull Time
5+ YOESenior front-end engineer with 5+ years exp, BS in Software Engineering/CS, US citizenship, ability to obtain Secret clearance.
HTML, CSS, JavaScript, React, Vue, Angular, Next.js, Vite, Webpack, Rollup, TailwindCSS, CSS-in-JS, styled-components, RBAC, RESTful APIs, WebSockets, Pub/Sub, Python, FastAPI, SQL, Redis
3w
Save
Mark Applied
Hide
Senior Backend Software Engineer
Arkansas or California or Colorado or District of Columbia or Florida or Illinois or Massachusetts or Maryland or Maine or Michigan or New Jersey or Ohio or Pennsylvania or South Carolina or Texas or Utah or Virginia or Washington
$165k-$195k/yr RemoteFull Time
5+ YOE5+ years backend development experience with Python and FastAPI, strong backend architecture, relational modeling, AWS services, Docker, CI/CD, and cross-team communication.
Python, FastAPI, PostgreSQL, SQLAlchemy, Alembic, Flyway, AWS, ECS, Lambda, RDS, S3, IAM, Docker, Git, CI/CD, GitHub Actions, AWS CodePipeline, Claude Code, Cursor, Terraform, Terragrunt, Datadog, Sentry, LangGraph, Claude Code SDK, Amazon Bedrock
2mo
Save
Mark Applied
Hide
Python Developer (Mid-Senior)
Chantilly, Virginia, United States
OnsiteFull Time
10+ YOE10+ years Python development; FastAPI; AWS; TS/SCI with polygraph; U.S. citizenship; Bachelor's degree or equivalent experience; on-site in Chantilly, VA.
Python, FastAPI, SQLAlchemy, AWS, Kubernetes, Jenkins, GitHub, OpenSearch, Elastic, Airflow, PySpark, Trino, Linux, Docker, Helm, Makefiles, Java, Perl, C, C++, HTML, JavaScript, JSON
2mo
Save
Mark Applied
Hide
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
Save
Mark Applied
Hide
Full-stack Developer
McLean, Virginia, United States
$160k-$190k/yr OnsiteFull Time
8+ YOESenior-level full-stack development experience (8+ years), strong JavaScript/TypeScript and Python skills (Hono.js, fastapi), experience with Vue.js, Tailwindcss, CDKTF/terraform, relational databases/SQL, and cloud/DevOps.
JavaScript, Hono.js, Python, fastapi, TypeScript, Vue.js, Tailwindcss, CDKTF, terraform, SQL, Docker, AWS, Git
1w
Save
Mark Applied
Hide
Software Engineer Level 4
Norfolk, Virginia, United States
OnsiteFull Time
9+ YOEBackend developer with experience in data engineering, API development, Python, FastAPI, PostgreSQL, and Elasticsearch; active TS/SCI with CI Polygraph required.
Python, FastAPI, PostgreSQL, Elasticsearch
1mo
Save
Mark Applied
Hide
Senior Full Stack Developer
McLean or Tysons Corner
OnsiteFull Time
6+ YOEUS citizen or green card holder able to obtain Public Trust; Bachelor's degree or +4 years experience; 6+ years full‑stack development; 3+ years AWS cloud development; proficiency in Python and JavaScript; experience with Django/Flask alternatives and modern frontend frameworks.
Python, JavaScript, Django, Vue.JS, Flask, FastAPI, Falcon, SQLAlchemy, React, Svelte, Angular, Docker, EKS/Kubernetes, AWS Step Functions, Event Bridge, AWS Lambda, AWS API Gateway, Elasticsearch, Redis, Memcached, Amazon Relational Database Service (RDS) for Postgres, MongoDB, AWS Serverless Application Model (SAM), AWS
3w
Save
Mark Applied
Hide
Full Stack Developer
Washington or Ashburn or Manassas
HybridFull Time
5+ YOE5+ years full-stack experience with Python, FastAPI, ReactJS, PostgreSQL, Docker, and AWS; CI/CD and trunk-based development; public trust clearance required; bachelor's degree or equivalent preferred.
Python, FastAPI, ReactJS, PostgreSQL, Docker, AWS, ECS, EKS, pytest, Jest, React Testing Library, OpenAPI/Swagger, CI/CD
2mo
Save
Mark Applied
Hide
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
Save
Mark Applied
Hide
Full Stack Developer
Chantilly, Virginia, United States
$112k-$222k/yr OnsiteFull Time
5+ YOE5+ years software development experience with Python (Flask/Django/FastAPI), APIs, database/datalayer work, front-end development (JavaScript/React/Angular/Vue), cloud (AWS), containers, and Agile/Scrum; active TS/SCI with Poly required; US citizenship and unrestricted work authorization required.
Python, Flask, Django, FastAPI, SQL, SQLAlchemy, JavaScript, TypeScript, CSS, React, Angular, Vue, Amazon Web Services (AWS), uv, ruff, pyright, pytest, coverage, Selenium, Karma, WordPress, MongoDB
1w
Save
Mark Applied
Hide
26-1106: Python Developer - Herndon, VA
Herndon, Virginia, United States
$110k-$150k/yr OnsiteFull Time
5+ YOEBachelor's or equivalent,5+ years Python development,experience with Flask or FastAPI,REST API design,relational and NoSQL databases,Git,CI/CD,Docker,Kubernetes,AWS,and secure coding for DoD environments.
Python, Flask, FastAPI, Git, CI/CD, Docker, Kubernetes, AWS
1w
Save
Mark Applied
Hide
Senior Software Engineer - AI, CoCounsel International
Eagan or Frisco or New York City or Ann Arbor or San Francisco or Los Angeles or Irvine or McLean or Washington
$110k-$204k/yr HybridFull Time
4+ YOE4+ years backend engineering experience with Python, FastAPI, PostgreSQL, AWS; production agentic AI and LLM integration experience; strong debugging, architecture, and collaboration skills.
Python, FastAPI, PostgreSQL, AWS, OpenAI, Anthropic
1mo
Save
Mark Applied
Hide
Senior Agentic AI Full Stack Software Engineer
Arlington, Virginia, United States
$157k-$213k/yr OnsiteFull Time
10+ YOECurrent TS/SCI clearance (with CI polygraph or ability to obtain), US citizenship, 10+ years related experience, Bachelor's in CS/Software Engineering or equivalent, proficiency in Python, Streamlit/React, FastAPI, Docker, Git, and relational databases.
AI Ops, CI/CD, Docker, Streamlit, React, FastAPI, Python, PostgreSQL, MySQL, Git, Kubernetes, MLOps, DevSecOps, RAG, LLM
1mo
Save
Mark Applied
Hide
Senior Agentic AI Full Stack Software Engineer
Arlington, Virginia, United States
$157k-$213k/yr OnsiteFull Time
10+ YOECurrent TS/SCI (with CI Polygraph or ability to obtain), US citizenship, 10+ years related experience, Bachelor’s in CS/SE or equivalent, proficiency in Python, Streamlit/React, FastAPI, Docker, CI/CD, Git, and relational databases.
Python, Streamlit, React, FastAPI, Docker, Kubernetes, PostgreSQL, MySQL, Git, CI/CD, AI Ops, MLOps, DevSecOps
1mo
Save
Mark Applied
Hide
Financial Model Development Senior (Python Developer)
McLean, Virginia, United States
$130k-$196k/yr OnsiteFull Time
5+ YOEBachelors in CS/Engineering, 5+ years developing analytic production-quality software; proficient in Python, C++, Java; familiar with AWS EKS and Python web frameworks; experience with Make, Git, shell scripts, gdb, pdb, SQL, RDBMS.
Python, C++, Java, AWS EKS, Flask, Fast API, Django, Make, Git, shell scripts, gdb, pdb, SQL, RDBMS
1d
Save
Mark Applied
Hide
Senior LLMOps Engineer
McLean, Virginia, United States
$145k-$185k/yr OnsiteFull Time
5+ YOERequires 5+ years in software, data, MLOps, or cloud engineering, including 2+ years in LLM/GenAI operations; degree in a related field; Python, cloud, deployment, CI/CD, Docker, Kubernetes, and Terraform experience.
Hugging Face Transformers, vLLM, TensorRT-LLM, Python, FastAPI, PyTorch, LangChain, LlamaIndex, FAISS, Milvus, Pinecone, AWS, Azure, GCP, Docker, Kubernetes, Terraform, CloudFormation, MLflow, Weights & Biases, Airflow
2mo
Save
Mark Applied
Hide
Full Stack Developer
Chantilly, Virginia, United States
$87k-$198k/yr OnsiteFull Time
6+ YOE6+ years AWS, serverless; Python/JavaScript; FastAPI; REST; microservices; React/Angular/Vue; Docker; Kubernetes; SQL/NoSQL; TS/SCI with poly; HS diploma or GED.
AWS, Python, JavaScript, FastAPI, REST, React, Angular, Vue, HTML, CSS, Docker, Kubernetes, SQL, NoSQL, Terraform, Terragrunt, GitHub
3w
Save
Mark Applied
Hide
Generative AI Engineer (Clearance Required)
Arlington, Virginia, United States
HybridFull Time
5+ YOEActive Top Secret clearance, 5+ years software development, 2+ years Generative AI/ML, strong Python, experience with LLMs, Azure, containerization, FastAPI/Flask, Git and CI/CD, and distributed systems.
Python, GPT, Llama, Claude, Mistral, FastAPI, Flask, Microsoft Azure, Microsoft Azure OpenAI Service, Azure Kubernetes Service (AKS), Azure Functions, Azure Storage, Microsoft Azure AI Search, Azure Machine Learning, Azure AI Foundry, Azure Cognitive Services, Docker, Kubernetes, Git, CI/CD, DevSecOps, LangChain, LangGraph, Semantic Kernel, LlamaIndex, Pinecone, Milvus, pgvector, Chroma, Model Context Protocol (MCP), Terraform, Bicep
4w
Save
Mark Applied
Hide
Full Stack Developer
Chantilly, Virginia, United States
OnsiteFull Time
5+ YOE5+ years Python experience, familiarity with Flask/Django/FastAPI, SQL/ORM, JavaScript/TypeScript front-end frameworks, unit/integration testing, containerized AWS deployments, and security clearance eligibility.
Python, Flask, Django, FastAPI, SQL, SQLAlchemy, JavaScript, TypeScript, CSS, React, Angular, Vue, Docker, Kubernetes, AWS, RESTful APIs
Explore Jobs
Expand Your Job Search
Top Cities in Virginia for Senior Fastapi Developer
- Senior Fastapi Developer jobs in Virginia Beach, VA
- Senior Fastapi Developer jobs in Norfolk, VA
- Senior Fastapi Developer jobs in Chesapeake, VA
- Senior Fastapi Developer jobs in Richmond, VA
- Senior Fastapi Developer jobs in Arlington, VA
- Senior Fastapi Developer jobs in Newport News, VA
- Senior Fastapi Developer jobs in Alexandria, VA
- Senior Fastapi Developer jobs in Hampton, VA
- Senior Fastapi Developer jobs in Roanoke, VA
- Senior Fastapi Developer jobs in Portsmouth, VA
- Senior Fastapi Developer jobs in Suffolk, VA
- Senior Fastapi Developer jobs in Lynchburg, VA
- Senior Fastapi Developer jobs in Harrisonburg, VA
- Senior Fastapi Developer jobs in Leesburg, VA
- Senior Fastapi Developer jobs in Charlottesville, VA
- Senior Fastapi Developer jobs in Blacksburg, VA
- Senior Fastapi Developer jobs in Danville, VA
- Senior Fastapi Developer jobs in Manassas, VA
- Senior Fastapi Developer jobs in Petersburg, VA
- Senior Fastapi Developer jobs in Fredericksburg, VA