58 fastapi developer jobs at 33 companies in District of Columbia
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Software Engineer Level 5
Washington, District of Columbia, United States
OnsiteFull Time
10+ YOEBackend, data engineering, and API development experience with Python, FastAPI, PostgreSQL, Elasticsearch, scalable systems, and active TS/SCI with CI Polygraph clearance.
Python, FastAPI, PostgreSQL, SQL, Elasticsearch, COTS, GOTS
1mo
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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
2w
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AI Engineer
Washington, District of Columbia, United States
OnsiteFull Time
4+ YOEBachelor's degree in CS/Statistics or related, 4+ years developing software/AI/ML, Python, Flask/FastAPI, JavaScript, experience with LLMs/Generative AI, and active IRS MBI clearance required.
Python, Flask, FastAPI, JavaScript, LangGraph, CrewAI, Haystack, AutoGen, Large Language Models (LLMs)
3mo
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Senior Python Developer (Lead)
Washington, District of Columbia, United States
RemoteFull Time
7+ YOE7+ years software development, strong Python 3.x experience, FastAPI/Flask/Django, REST API design, Agile and CI/CD/DevSecOps experience, leadership experience, eligible for Public Trust clearance.
Python 3.x, FastAPI, Django, Flask, AWS, Azure, Google Cloud Platform, Docker, Kubernetes
1mo
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Full Stack Software Developer
Washington, District of Columbia, United States
HybridFull Time
5+ YOEBachelor's (or equivalent) and 5+ years full stack development with ReactJS, Python, FastAPI, PostgreSQL, REST APIs, AWS, Docker; CI/CD familiarity and ability to obtain Public Trust clearance.
ReactJS, Python, FastAPI, PostgreSQL, REST APIs, AWS, Docker, Kubernetes, GitHub Actions, CI/CD
1mo
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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
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Software Engineer
London or Washington or United States or United Kingdom or Europe or Asia
OnsiteFull Time
6+ YOE6 years backend engineering experience with Python and web/REST APIs; BSc in Software Engineering or CS; experience with Django/FastAPI, Azure, Kafka, Docker, Kubernetes, Elasticsearch; Agile delivery and leadership skills; BPSS check and UK right-to-work required.
Python, Django, FastAPI, REST, Azure, Kafka, Docker, Kubernetes, Elasticsearch
1mo
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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
1mo
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Principal Engineer, CoCounsel
Eagan or Frisco or New York City or Toronto or Ann Arbor or San Francisco or Los Angeles or Irvine or McLean or Washington
$159k-$295k/yr HybridFull Time
Bachelor's degree (or equivalent) in CS or CE, deep Python and distributed systems experience, hands-on AI/LLM and agent experience, FastAPI/PostgreSQL/AWS familiarity, identity/IAM (SAML, OIDC, OAuth 2.0) expertise, strong communication.
Python, FastAPI, PostgreSQL, AWS, SSO, SAML, OIDC, OAuth 2.0, RBAC, ABAC, Anthropic, OpenAI, LLMs, MCP servers, vector databases, embeddings, semantic search
1w
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Sr. Gen AI/ML Lead/Developer
Washington, District of Columbia, United States
$90k-$150k/yr HybridFull Time
8+ YOE8+ years in data science, machine learning, or AI engineering; expert Python and PySpark; experience with Azure AI, GenAI, MLOps, FastAPI, LangChain, LangGraph, and financial services domains.
Python, PySpark, Azure Machine Learning, Generative AI, LangChain, LangGraph, RAG, FastAPI, Azure OpenAI Service, Natural Language Processing (NLP), Large Language Models (LLMs), Azure Data Lake, Azure Databricks, Azure Storage Services, Azure DevOps, MLOps, REST APIs, Docker, Kubernetes, Pinecone, Azure AI Search, Weaviate, ChromaDB, CI/CD
2mo
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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
2mo
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Full Stack Software Developer
Washington, District of Columbia, United States
OnsiteFull Time
5+ YOEBachelor's in a technical field (or equiv), 5+ years full-stack experience with Python/FastAPI and ReactJS, PostgreSQL, Docker, AWS, Git, automated testing (pytest/Jest), Agile experience, and willingness to undergo government background investigation.
Python, FastAPI, ReactJS, JavaScript, TypeScript, HTML5, CSS, PostgreSQL, Docker, AWS, EC2, S3, RDS, CloudWatch, IAM, VPC, ECS, EKS, pytest, Jest, React Testing Library, Git, OpenAPI/Swagger
1mo
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Senior AI Software Engineer
Washington or United States
$180k-$210k/yr HybridFull Time
10+ YOE10+ years building distributed software, technical lead experience, Bachelor\u000degree, strong Python (asyncio, FastAPI, Pydantic), Docker, Kubernetes, Terraform, CI/CD, AWS/Azure, SDR and edge computing experience preferred; U.S. citizenship required for clearance eligibility.
Python, FastAPI, Pydantic, asyncio, Docker, AWS, Azure, GitLab CI, GitHub Actions, Kubernetes, Terraform, Helm, GNU Radio, USRP, Ettus USRP, SoapySDR, UHD
1mo
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Senior Lead Developer
Washington, District of Columbia, United States
$150k-$162k/yr HybridFull Time
10+ YOEBachelor's degree,10+ years software development,5+ years federal systems experience,technical leadership,expertise with Python,C#,JavaScript/TypeScript,React,.NET,Azure,CI/CD,databases,DevSecOps and secure coding.
Python, React, .NET, Microsoft Power Platform, SQL Server, PostgreSQL, Azure, Azure Government, Azure App Services, Azure Functions, Azure Storage, Azure Key Vault, Microsoft 365, Power Apps, Power Automate, Power Pages, Power BI, SharePoint Online, Microsoft Teams, FastAPI, Flask, Django, ASP.NET Core, JSON, XML, PostgreSQL, Entity Framework, Dataverse, Git, Azure DevOps, GitHub, CI/CD pipelines, Docker, Kubernetes
1mo
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Full Stack Software Developer (SMA 2 — Cloud Service Support)
Washington, District of Columbia, United States
RemoteFull Time
Proficiency with Python, FastAPI, ReactJS, PostgreSQL, Docker and AWS; CI/CD and IaC familiarity; bachelor’s degree in CS/IT; U.S. citizenship or permanent residence; Public Trust clearance required.
Python, FastAPI, ReactJS, PostgreSQL, Docker, AWS, EC2, S3, RDS, CloudWatch, IAM, VPC, ECS, EKS, Open API/Swagger, pytest, Jest, React Testing Library, Terraform, GitHub Actions
2mo
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Senior AI/ML Software Engineer - Remote
Eden Prairie or Minneapolis or Washington or United States
$120k-$215k/yr RemoteFull Time
5+ YOEB.S. in computer science or related field; 5+ years software engineering experience with 3+ years operating production ML systems; expert Python; FastAPI; Kubernetes, Docker, Helm; MLOps practices including deployment, versioning, and monitoring.
Python, FastAPI, Kubernetes, Docker, Helm, AzureML, DataBricks, Azure Kubernetes
2mo
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Software Engineer - Senior
Bolling AFB, District of Columbia, United States
OnsiteFull Time
8+ YOE8+ years hands-on software development, TS/SCI clearance with CI Poly, full stack with modern JS and backend, cloud-native, DevSecOps, leadership.
React, Angular, Vue, Python, FastAPI, Django, Node.js, Java, Spring, Go, REST, GraphQL, PostgreSQL, MySQL, MongoDB, Redis, Docker, Kubernetes, OAuth, SAML, OIDC, MCP, GitLab, SAST, DAST
4d
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Senior Software Engineer
Washington, D.C. or Arlington
$140k-$206k/yr OnsiteFull Time
2+ YOEU.S. citizen with active TS/SCI clearance and CI polygraph, 2–5 years of experience, bachelor's degree in a technical discipline, Java and Python development, REST APIs, databases, Git, and Agile methodologies.
Java, Python, RESTful APIs, Spring Boot, Flask, FastAPI, Django, Kubernetes, Docker, AWS, Google Cloud, Azure, Git, SQL, CI/CD, DevSecOps
2w
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AI Developer
Washington, District of Columbia, United States
$99k-$225k/yr HybridFull Time
2+ YOE2+ years building production software in Python/TypeScript/Java; experience with LLMs, RAG, agentic workflows, MLOps/DevSecOps, cloud data foundations (AWS), and event-driven integrations; Secret clearance and HS diploma/GED required.
Python, TypeScript, Java, FastAPI, Flask, REST, GraphQL, SQL, AWS, Kafka, NATS, RabbitMQ, MLOps, DevSecOps, CI/CD, containerization, code copilots
2w
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AI Developer
Washington or Fort Meade
$99k-$225k/yr OnsiteFull Time
2+ YOE2+ years building production-grade software (Python, TypeScript, or Java) with APIs and data services; experience with LLMs/RAG/agentic workflows, MLOps/DevSecOps, cloud data foundations (AWS), and event-driven integrations; Secret clearance and HS diploma/GED required.
Python, TypeScript, Java, FastAPI, Flask, REST, GraphQL, SQL, AWS, Kafka, NATS, RabbitMQ
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