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Fastapi Developer Jobs in Reston, VA (NOW HIRING)

Cornerstone Defense

Python Developer

Chantilly, VA · On-site

$51.50 - $71/hr

Job #3456 Python Developer: w orks as part of a team to implement functionality as part of multiple ... Experience with API development in Python using Python libraries such as FastAPI * Experience with ...

Interon IT Solutions

AI/ML Engineer

Reston, VA · On-site

AI/ML Engineer (Python, AWS, GenAI) Location: Reston, VA (In-person interviews required) Candidate ... Develop scalable, high-performance Python microservices using FastAPI/Flask for data pipelines ...

CACI bv

Cybersecurity Software Developer

Chantilly, VA · On-site

... FastAPI, Flask or similar technologies • Experience developing Python SDKs, client libraries or other developer-consumable integrations • Experience with JavaScript-based web applications or ...

Mindlance

Senior AI Developer

Washington, DC · On-site

$61.75 - $81.50/hr

Developer Premium II - AI Developer Duration: 6 Months - Long Term Location: Washington, DC 20433 ... Build APIs, automation services, and backend components using Python (FastAPI, Flask, etc.

Booz Allen Hamilton

Full Stack Developer

Chantilly, VA · On-site

... FastAPI, RESTful APIs, and microservices • 6+ years of experience designing, modifying, developing, writing, and implementing software programming applications using agile methods • Experience ...

Booz Allen Hamilton

Full Stack Developer

Chantilly, VA · On-site

... FastAPI, RESTful APIs, and microservices • 6+ years of experience designing, modifying, developing, writing, and implementing software programming applications using agile methods • Experience ...

Zetier

Full-Stack Engineer

Arlington, VA · On-site

Senior Full-Stack Engineer Zetier is seeking a senior full-stack engineer to build modern, secure ... Flask, FastAPI) * Familiar with responsive design frameworks (Bootstrap, Material) * Practical ...

Rackner

Software Engineer

Washington, DC · Remote

Modern programming languages and frameworks including Python (FastAPI), Flask, JavaScript (Node.js, Express, Vue, Svelte, React), and Java (Spring Boot) * Develop data focused solutions to include ...

New

Zetier

Full-Stack Engineer

Arlington, VA · Hybrid

Senior Full-Stack Engineer Zetier is seeking a senior full-stack engineer to build modern, secure ... Flask, FastAPI) * Familiar with responsive design frameworks (Bootstrap, Material) * Practical ...

Unisys

Python Developer

Reston, VA

$52.25 - $72/hr

We are seeking a Senior Python Developer to support the design, development, and scaling of cloud ... Skills: Strong proficiency in Python and backend frameworks such as FastAPI, Flask Proven ...

Base-2 Solutions, LLC

Software Engineer Level 4

Reston, VA · On-site

$137.06K - $161.25K/yr

Demonstrated experience as a backend developer. * Demonstrated experience in data engineering and API development. * Experience building scalable systems with Python and FastAPI. * Experience ...

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$85

How much do fastapi developer jobs pay per hour?

As of May 31, 2026, the average hourly pay for fastapi developer in Reston, VA is $54.97, according to ZipRecruiter salary data. Most workers in this role earn between $42.02 and $67.26 per hour, depending on experience, location, and employer.

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 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 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.

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 most commonly searched types of Fastapi Developer jobs in Reston, VA? The most popular types of Fastapi Developer jobs in Reston, VA are:
What are popular job titles related to Fastapi Developer jobs in Reston, VA? For Fastapi Developer jobs in Reston, VA, the most frequently searched job titles are:
What job categories do people searching Fastapi Developer jobs in Reston, VA look for? The top searched job categories for Fastapi Developer jobs in Reston, VA are:
What cities near Reston, VA are hiring for Fastapi Developer jobs? Cities near Reston, VA with the most Fastapi Developer job openings:
Fastapi Developer jobs near you
Infographic showing various Fastapi Developer job openings in Reston, VA as of May 2026, with employment types broken down into 100% Full Time. Highlights an 50% In-person, and 50% Remote job distribution, with an average salary of $114,340 per year, or $55 per hour.
Full Stack Developer

Full Stack Developer

Software Guidance & Assistance

Rockville, MD

Other

Posted 7 days ago

Job description

Software Guidance & Assistance, Inc., (SGA), is searching for a Full Stack Developer for a CONTRACT assignment with one of our premier Regulatory clients in Rockville, MD or Tysons, VA.
We are seeking an experienced Full Stack Developer to join our team. The ideal candidate will design, develop, and maintain end-to-end applications spanning modern front-end frameworks, robust middle-tier services, and scalable cloud-native data solutions. This role emphasizes AI-assisted development practices and hands-on experience building solutions powered by Large Language Models (LLMs).
Responsibilities :
  • Design, develop, and maintain full stack applications from UI through middle tier to data layer
  • Build responsive, accessible front-end interfaces using Angular or Vue.js
  • Develop RESTful APIs and microservices using Java (Spring Boot) and Python-based frameworks (FastAPI, Flask, Django)
  • Design and manage relational and NoSQL data stores including PostgreSQL and document databases (e.g., Amazon DocumentDB, MongoDB)
  • Architect and deploy applications on AWS using services such as Lambda, ECS, S3, API Gateway, CloudFormation, and CDK
  • Leverage AI-powered coding tools (Amazon Q Developer, Kiro) to accelerate development workflows
  • Build and integrate LLM-powered features using AWS Bedrock or similar platforms
  • Participate in large-scale document analysis and intelligent data extraction initiatives
  • Collaborate with cross-functional teams in Agile/Scrum ceremonies
  • Design and maintain end-to-end automated test suites using frameworks such as Selenium, Cypress, or Playwright
  • Identify and resolve performance bottlenecks across the full stack including query optimization, API response tuning, front-end rendering, and JVM/Python profiling
  • Write unit and integration tests, conduct code reviews, and uphold engineering best practices
  • Mentor and guide junior developers through code reviews, pair programming, and knowledge-sharing sessions
Required Skills :
  • 5+ years of professional full stack development experience
  • Bachelor's degree in Computer Science, Software Engineering, or a related field (or equivalent practical experience)
  • Strong proficiency in Java (Spring Boot, Spring MVC) and Python (FastAPI, Flask, or Django)
  • Hands-on experience with Angular or Vue.js for front-end development
  • Solid experience with PostgreSQL and document databases (Amazon DocumentDB, MongoDB, or similar)
  • Demonstrated experience with AWS cloud services (EC2, Lambda, S3, ECS/EKS, RDS, IAM, CloudWatch)
  • Experience using AI-assisted development tools such as Amazon Q Developer or Kiro for code generation, refactoring, and productivity
  • Practical experience building applications that integrate Large Language Models (LLMs), preferably using AWS Bedrock
  • Familiarity with CI/CD pipelines, containerization (Docker), and infrastructure-as-code
  • Experience with end-to-end test automation frameworks (Selenium, Cypress, Playwright, or similar)
  • Proven ability to performance tune applications including database query optimization, API latency reduction, front-end profiling, and load testing
  • Strong understanding of RESTful API design, microservices architecture, and secure coding practices
  • Excellent problem-solving, communication, and collaboration skills
Preferred Skills :
  • Experience with large document analysis, intelligent document processing, or text extraction at scale (e.g., Amazon Textract, custom NLP pipelines)
  • Familiarity with Retrieval-Augmented Generation (RAG) patterns and vector databases
  • AWS certifications (Solutions Architect, Developer Associate, or similar)
  • Experience in the financial services or regulatory technology domain
  • Knowledge of prompt engineering and LLM fine-tuning techniques
  • Experience with Terraform or AWS CDK for infrastructure management
SGA is a technology and resource solutions provider driven to stand out. We are a women-owned business. Our mission: to solve big IT problems with a more personal, boutique approach. Each year, we match consultants like you to more than 1,000 engagements. When we say let's work better together, we mean it. You'll join a diverse team built on these core values: customer service, employee development, and quality and integrity in everything we do. Be yourself, love what you do and find your passion at work. Please find us at .
SGA is an Equal Opportunity Employer and does not discriminate on the basis of Race, Color, Sex, Sexual Orientation, Gender Identity, Religion, National Origin, Disability, Veteran Status, Age, Marital Status, Pregnancy, Genetic Information, or Other Legally Protected Status. We are committed to providing access, equal opportunity, and reasonable accommodation for individuals with disabilities in employment, and our services, programs, and activities. Please visit our company to request an accommodation or assistance regarding our policy.
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