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Fastapi Developer Jobs in Ashburn, VA (NOW HIRING)

NSS

Full Stack Python Developer

Leesburg, VA · On-site

Design and develop Python backend services and REST APIs (e.g., Flask/FastAPI) to expose AI/ML and ... Collaborate with ML Engineers to productionize LLM/RAG-based features, including prompt/inference ...

The Josef Group

Full Stack Developer

Chantilly, VA · On-site

Full Stack Developer Chantilly, VA TS/SCI and Full Scope Poly $200K to $250K Description: The Full ... application in Flask, Django, FastAPI; including developing associated testing (unit and ...

JTEC Consulting

Python Developer (Mid-Senior)

Chantilly, VA · On-site

$150K - $175K/yr

Qualified candidates will have experience developing microservices in Python using FastAPI. Working ... Programming experience using Python, Java, Perl, C, C++ * Experience with ELK Stack (Elasticsearch ...

Spry Methods

Full Stack Software Developer

Washington, DC · On-site

$130K - $150K/yr

Build and maintain representational state transfer (REST) application programming interfaces (APIs) using FastAPI. * Develop responsive and accessible React-based front-end interfaces. * Implement ...

VTG

Full Stack Developer

Chantilly, VA

Work closely with the Lead Developer to maintain, enhance, and modernize existing software ... FastAPI. * Experience developing and maintaining unit and integration tests. * 2-3 years of ...

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$54

$83

How much do fastapi developer jobs pay per hour?

As of Jul 14, 2026, the average hourly pay for fastapi developer in Ashburn, VA is $54.03, according to ZipRecruiter salary data. Most workers in this role earn between $41.30 and $66.11 per hour, depending on experience, location, and employer.

What are some common challenges FastAPI Developers face when integrating third-party services or APIs?

FastAPI Developers often encounter challenges when integrating third-party services, such as handling authentication protocols (like OAuth2), ensuring compatibility between JSON schemas, and managing asynchronous calls to avoid performance bottlenecks. It’s also common to troubleshoot and adapt to inconsistencies in external API documentation or rate limits. Collaborating closely with frontend teams and DevOps professionals helps streamline these integrations, ensuring robust, scalable API solutions.

What is the difference between Fastapi Developer vs Backend Developer?

AspectFastapi DeveloperBackend Developer
Required SkillsPython, Fastapi, REST APIs, async programmingMultiple languages (Python, Java, Node.js), REST/SOAP APIs, databases
Work EnvironmentWeb development, API-focused projects, microservicesBroader software development, server-side logic, database management
Industry UsageTech startups, SaaS, API-driven servicesEnterprise, e-commerce, finance, various industries

Fastapi Developers specialize in building high-performance APIs using Python and Fastapi, often within microservices architectures. Backend Developers have a broader scope, working with multiple languages and technologies to develop server-side applications across various industries. While Fastapi Developers focus on API efficiency, Backend Developers handle comprehensive backend systems.

What are the key skills and qualifications needed to thrive as a FastAPI Developer, and why are they important?

To thrive as a FastAPI Developer, you need strong proficiency in Python programming, RESTful API design, and experience with FastAPI, often supported by a background in computer science or related fields. Familiarity with tools like SQL/NoSQL databases, Docker, and cloud platforms, as well as knowledge of asynchronous programming and API documentation tools like Swagger, is typically required. Excellent problem-solving skills, attention to detail, and effective communication set outstanding FastAPI developers apart. These skills are crucial for building reliable, high-performance APIs that meet modern application demands and facilitate seamless team collaboration.

What is a FastAPI Developer?

A FastAPI Developer is a software engineer who specializes in building web applications and APIs using the FastAPI framework, which is a modern, fast (high-performance) web framework for Python. FastAPI Developers are responsible for designing, developing, and maintaining backend services and APIs that are efficient, robust, and scalable. They often work with databases, authentication, and deployment processes, and ensure that the API endpoints adhere to best practices for security and performance. Their work is crucial for enabling smooth communication between front-end applications and backend systems.
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Fastapi Developer jobs near you
Full Stack Software Developer (Python/FastAPI/ReactJS)

Full Stack Software Developer (Python/FastAPI/ReactJS)

Inabia Solutions and Consulting, Inc.

Washington, DC • On-site

Contractor

Posted 3 days ago

New

Job description

Overview
Inabia is seeking a Full Stack Software Developer with deep expertise in Python/FastAPI and ReactJS to design, build, and maintain mission-critical applications supporting a federal program. This is a stable, long-term 2-year hybrid contract role based in Washington, DC. An active U.S. security clearance is required at the time of application - no interim or prospective clearance candidates will be considered.
Responsibilities
  • Design, develop, and maintain full-stack applications using Python/FastAPI on the backend and ReactJS on the frontend
  • Build and maintain RESTful APIs with proper validation, error handling, versioning, and documentation
  • Manage PostgreSQL data models, schema design, and database migrations
  • Containerize applications using Docker and support deployment to AWS
  • Work within AWS infrastructure (EC2, S3, RDS, IAM, CloudWatch, VPC) to deploy, monitor, and troubleshoot cloud-hosted applications
  • Participate in Agile/Scrum ceremonies including sprint planning, daily stand-ups, code reviews, and retrospectives
  • Write automated tests and maintain strong test coverage across backend and frontend codebases
  • Collaborate with cross-functional program teams to translate requirements into secure, scalable software solutions

Key Qualifications
  • U.S. Citizenship required
  • Active security clearance required at time of application (no interim or eligibility-only candidates)
  • Strong hands-on experience with Python and FastAPI
  • Demonstrated experience with ReactJS
  • Strong knowledge of PostgreSQL including schema design and migrations
  • Experience with Docker and containerized application development
  • Proven experience working with AWS services (EC2, S3, RDS, IAM, CloudWatch, VPC)
  • Experience designing and developing RESTful APIs
  • Agile/Scrum development experience

Preferred Qualifications
  • Experience with Kubernetes
  • Familiarity with AWS Lambda, ECS, or EKS
  • CI/CD pipeline experience using Jenkins or GitHub Actions
  • Infrastructure-as-Code experience with Terraform
  • Knowledge of OAuth2 and JWT authentication patterns
  • Experience with automated testing frameworks such as PyTest or Jest
  • Prior experience supporting Federal Government projects
  • Knowledge of NIST/FISMA security standards and compliance requirements

Apply