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Senior Fastapi Developer Jobs in Reston, VA (NOW HIRING)

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 ...

iCatalyst Inc

Sr. AI Developer

Mclean, VA

$55 - $72.75/hr

We have an exciting opportunity for a Senior AI Developer to join our team on a project. We offer a ... Experience developing REST APIs and backend services, using frameworks such as FastAPI, Flask, or ...

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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 ...

MBR Partners

Senior Software Engineer

Washington, DC · Remote

$150K/yr

With a back-end team in the Philippines, I'm currently hiring for a Senior Software Engineer ... FastAPI Experience with React, Redux (RTK), CSS modules Experience with CI/CD, Clouds (AWS/GCP ...

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Altumint

Junior Python Engineer

Lanham, MD

$80K - $90K/yr

Senior Software Engineer Team Lead FLSA Status: Exempt Position Summary The Junior Python Engineer ... DevOps, and security. Preferred Qualifications: · Experience developing applications with FastAPI ...

HawkEye 360

Senior Software Engineer

Herndon, VA · On-site

$125.90K - $165.90K/yr

They are seeking a Senior Command & Control Software Engineer to design, develop, and maintain ... FastAPI or Spring Boot. • Experience with asynchronous messaging like Apache Kafka. • ...

New

Unisys

Python Developer

Reston, VA · On-site

$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 ...

HawkEye 360, Inc.

Senior Software Engineer

Herndon, VA

$130K - $180K/yr

Senior Software Engineer ID: SPA-26-B1 Team: Space & Ground Systems Location: Herndon, VA More ... Experience building REST API's using frameworks like FastAPI or Spring Boot. * Experience with ...

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Seekr

Senior AI Solutions Engineer

Reston, VA

$57.50 - $74/hr

Capable of developing prototype solutions using common tools (e.g., FastAPI, React) * Familiar with generative AI concepts like RAG, prompt engineering, agents, structured output, multi-modal LLMs ...

Peraton

Senior AI/ML Software Engineer

Herndon, VA

$146K - $234K/yr

Responsibilities Peraton Labs is seeking a Senior AI/ML Software Engineer to join the Labs Agentic ... Develop full-stack product features (FastAPI + React) that surface AI capabilities to users - from ...

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Senior Fastapi Developer information

See Reston, VA salary details

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$64

$91

How much do senior fastapi developer jobs pay per hour?

As of May 29, 2026, the average hourly pay for senior fastapi developer in Reston, VA is $64.22, according to ZipRecruiter salary data. Most workers in this role earn between $54.52 and $72.02 per hour, depending on experience, location, and employer.

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

To thrive as a Senior FastAPI Developer, you need deep expertise in Python, RESTful API design, and experience building scalable web backends, typically supported by a degree in computer science or related field. Familiarity with FastAPI, Docker, cloud platforms (such as AWS or Azure), and CI/CD tools is highly valued, along with proficiency in testing frameworks. Strong problem-solving, leadership, and communication skills help you collaborate effectively with cross-functional teams and mentor junior developers. These skills enable the delivery of robust, efficient, and maintainable APIs that support business goals and high user demands.

What are some common challenges faced by Senior FastAPI Developers when scaling applications, and how can these be addressed?

Senior FastAPI Developers often encounter challenges related to managing high concurrency, optimizing API performance, and ensuring robust security as applications scale. To address these, it’s important to implement asynchronous programming practices, leverage efficient database queries, and utilize API gateways for better traffic management. Collaboration with DevOps and QA teams is also essential to automate deployments and monitor system health, ensuring smooth scaling and reliable user experiences.

What does a Senior FastAPI Developer do?

A Senior FastAPI Developer designs, develops, and maintains backend web applications using the FastAPI framework in Python. They are responsible for building scalable APIs, optimizing performance, ensuring security best practices, and integrating with databases and external services. Senior developers also mentor junior team members, contribute to architecture decisions, and collaborate closely with front-end engineers and stakeholders to deliver robust software solutions.
What are popular job titles related to Senior Fastapi Developer jobs in Reston, VA? For Senior Fastapi Developer jobs in Reston, VA, the most frequently searched job titles are:
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What cities near Reston, VA are hiring for Senior Fastapi Developer jobs? Cities near Reston, VA with the most Senior Fastapi Developer job openings:
Senior Fastapi Developer jobs near you
Infographic showing various Senior Fastapi Developer job openings in Reston, VA as of May 2026, with employment types broken down into 100% Full Time. Highlights an 7% Physical, and 93% Remote job distribution, with an average salary of $133,581 per year, or $64.2 per hour.
Full-Stack Engineer

Full-Stack Engineer

Zetier

Arlington, VA • On-site

Full-time

Posted 13 days ago

Job description

Senior Full-Stack Engineer
Zetier is seeking a senior full-stack engineer to build modern, secure, and mission-focused software supporting advanced cybersecurity, reverse engineering, and defense initiatives. Candidates should be comfortable owning features end-to-end, from backend service design to polished frontend interfaces, while working within compliance-sensitive environments and collaborating closely with RE/VR/DEV teams.
Required:
  • 5+ years experience developing production full-stack apps
  • Proficiency with modern frameworks (e.g. React, Angular, Vue)
  • Strong TypeScript/JavaScript and UI implementation experience
  • Backend development experience in Python (e.g. Flask, FastAPI)
  • Familiar with responsive design frameworks (Bootstrap, Material)
  • Practical experience with databases (e.g. PostgreSQL, ORMs)
  • Hands-on experience designing and consuming RESTful APIs
  • Familiarity with message brokers (e.g. AMQP, RabbitMQ)
  • Effective collaboration with distributed engineering teams
  • Strong written and verbal communication skills
  • Active U.S. security clearance

Desired:
  • Experience with private/hybrid clouds (VMware, OpenStack)
  • Experience with CI/CD workflows for frontend applications
  • Familiarity with DoD or compliance-sensitive environments
  • Experience with backend frameworks (FastAPI, REST, ZeroMQ)
  • Proficiency with Figma or similar design/prototyping tools
  • Development on embedded platforms (uBoot, firmware, IOT)
  • Reverse engineering experience (gdb, Binary Ninja, IDA Pro)
  • Knowledge of containerized deployments (Docker, Kubernetes)
  • Understanding of accessibility and usability principles
  • Developed software on mobile platforms (Android, iOS)
  • Successfully led small cross-domain development teams

Position available in Arlington, VA (hybrid friendly).
Zetier is proud to be an Equal Opportunity Employer. We celebrate diversity and do not discriminate on the basis of race, religion, color, sex, gender identity, sexual orientation, age, non-disqualifying physical or mental disability, national origin, veteran status, or any other basis protected by law. All employment is decided on the basis of merit, qualifications, and business need.

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