ZipRecruiter

Log In

1

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

BuddoBot Inc.

Senior Data EngineerHerndon, VA

Herndon, VA · On-site

$150K - $175K/yr

Dark Wolf is looking for a Senior Data Engineer to join our team in Herndon, VA supporting the ... Experience with modern programming languages and frameworks including Python (FastAPI, Django ...

Vantor

Senior Software Engineer

Arlington, VA · On-site

$141K - $186K/yr

They are seeking a Senior Software Engineer to develop high-performance API-driven services and ... Preferred : • Experience with Spring Boot, Flask, FastAPI, Django, or similar frameworks. • ...

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 ...

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 ...

Lateral Insights LLC

Senior AI/ML Engineer

Great Falls, VA · Remote

$105K - $145K/yr

Senior AI/ML Platform Engineer Position Overview We are looking for an experienced Senior AI/ML ... Experience developing RESTful APIs and ML inference services using FastAPI * Solid understanding of ...

Apex Systems

Developer-Full Stack Senior

Mclean, VA · On-site

$65 - $82.26/hr

Role: Developer-Full Stack Senior Supporting: Large Financial Services Client Location: Onsite ... such as FastAPI or Django) * 5+ years of experience with SQL, including complex queries and ...

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 ...

Peraton

Senior AI/ML Software Engineer

Herndon, VA · On-site

$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 ...

Peraton

Senior AI/ML Software Engineer

Reston, 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 ...

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 ...

next page

Showing results 1-20

All JobsFastapi Developer JobsSenior Fastapi Developer JobsSenior Fastapi Developer Jobs in Reston, VA

Senior Fastapi Developer information

See Reston, VA salary details

$16

$64

$91

How much do senior fastapi developer jobs pay per hour?

As of Jul 14, 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 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 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 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 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:
What job categories do people searching Senior Fastapi Developer jobs in Reston, VA look for? The top searched job categories for Senior Fastapi Developer jobs in Reston, VA are:
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 July 2026, with employment types broken down into 85% Full Time, 3% Part Time, 1% Temporary, and 11% Contract. Highlights an 82% Physical, 3% Hybrid, and 15% Remote job distribution, with an average salary of $133,581 per year, or $64.2 per hour.
Senior Developer - Generative AI Platform and Mission Support

Senior Developer - Generative AI Platform and Mission Support

Peraton

Herndon, VA • On-site

$146K - $234K/yr

Full-time

Posted 11 hours ago

Peraton rating

8.3

Company rating: 8.3 out of 10

Based on 56 frontline employees who took The Breakroom Quiz

42nd of 210 rated it services

Job description

Responsibilities
Peraton Labs is seeking a Senior Developer to provide customer development support while also contributing to a broader Generative AI Platform and AI Program Management Office (PMO) initiatives. This role combines hands-on software engineering with mission-oriented delivery, requiring someone who can independently drive feature development, resolve complex technical issues, and help mature a production platform serving critical customer mission needs.
This individual will serve as a senior technical contributor on the deployed customer platform - owning significant development responsibilities, mentoring junior team members, and helping ensure that engineering decisions align with both immediate mission requirements and longer-term platform evolution. Additionally, this role will support cross-cutting Generative AI Platform and AI PMO development needs, contributing to shared capabilities, integration efforts, and technical initiatives that benefit the broader AI-enabled product portfolio.
The ideal candidate brings strong full-stack or backend development experience, comfort working in cloud-native environments, and the ability to operate effectively across both dedicated product support and broader organizational engineering priorities.
Key Responsibilities
  • Serve as a senior developer on a generative AI platform, owning feature development, bug resolution, performance optimization, and technical debt reduction
  • Design, build, test, and maintain production-quality software components supporting IRIS platform capabilities and mission requirements
  • Develop and maintain backend services, APIs, data processing pipelines, and integration points that support operational workflows
  • Contribute to front-end development as needed to deliver cohesive, user-facing platform features
  • Provide technical mentorship and code review support to junior and mid-level developers on the team
  • Support broader Generative AI Platform and AI PMO development initiatives, contributing to shared services, reusable components, and cross-platform integration efforts
  • Collaborate with product owners, analysts, and mission stakeholders to translate requirements into well-engineered technical solutions
  • Participate in architecture discussions, technical planning, and engineering tradeoff decisions for both the customer deployment and broader platform needs
  • Help establish and maintain engineering best practices including code quality standards, testing strategies, CI/CD workflows, and documentation
  • Troubleshoot and resolve complex technical issues across the application stack in development and production environments
  • Support deployment, release management, and operational readiness activities for the customer deployment and related platform capabilities
  • Document technical designs, implementation decisions, and system behaviors for engineering and stakeholder audiences

Qualifications
Required:
  • Minimum of 12 years of experience with BS/BA; Minimum of 10 years with MS/MA; Minimum of 7 years with PhD
  • Relevant experience should be in software development, application engineering, platform development, or related technical roles
  • Degree in Computer Science, Software Engineering, Computer Engineering, Information Systems, or a related technical field
  • Strong proficiency in Python with production development experience; additional experience with JavaScript/TypeScript preferred
  • Demonstrated experience building and maintaining production software systems, including backend services, APIs, and data-driven applications
  • Experience with cloud platforms (AWS preferred), containerization (Docker, Kubernetes), and modern deployment practices
  • Strong understanding of relational databases (PostgreSQL preferred), SQL, and data modeling
  • Experience with CI/CD pipelines, automated testing, version control (Git), and software delivery best practices
  • Ability to work independently, manage competing priorities, and deliver high-quality work in a fast-paced environment
  • Strong written and verbal communication skills with the ability to collaborate effectively across technical and non-technical stakeholders
  • US Citizenship with the ability to obtain and maintain Public Trust suitability

Desired:
  • Prior experience supporting FAA systems, aviation-related platforms, or government mission applications
  • Hands-on experience with Rust is a plus
  • Experience with AI/ML integration, LLM-enabled applications, or agentic AI platform development
  • Familiarity with FastAPI, async Python frameworks, or modern API development patterns
  • Experience with front-end frameworks (React preferred) and full-stack development
  • Experience with infrastructure-as-code (Terraform), monitoring/observability tooling, or platform engineering practices
  • Background in supporting multiple concurrent projects or product lines with shared engineering resources
  • Experience with data pipelines, ETL processes, or analytical data processing
  • Familiarity with security best practices, RBAC implementation, and compliance-aware development in regulated environments
  • Experience mentoring developers and contributing to engineering team growth
  • Exposure to Agile delivery practices, sprint-based development, and cross-functional team collaboration

Peraton Overview
Peraton is a next-generation national security company that drives missions of consequence spanning the globe and extending to the farthest reaches of the galaxy. As the world's leading mission capability integrator and transformative enterprise IT provider, we deliver trusted, highly differentiated solutions and technologies to protect our nation and allies. Peraton operates at the critical nexus between traditional and nontraditional threats across all domains: land, sea, space, air, and cyberspace. The company serves as a valued partner to essential government agencies and supports every branch of the U.S. armed forces. Each day, our employees do the can't be done by solving the most daunting challenges facing our customers. Visit peraton.com to learn how we're keeping people around the world safe and secure.
Target Salary Range
$146,000 - $234,000. This represents the typical salary range for this position. Salary is determined by various factors, including but not limited to, the scope and responsibilities of the position, the individual's experience, education, knowledge, skills, and competencies, as well as geographic location and business and contract considerations. Depending on the position, employees may be eligible for overtime, shift differential, and a discretionary bonus in addition to base pay.
EEO
EEO: Equal opportunity employer, including disability and protected veterans, or other characteristics protected by law.

What Peraton employees say

Pay

Benefits

Hours and flexibility

Workplace

Get the full story on Breakroom

Peraton logo

About Peraton

Sourced by ZipRecruiter

At Peraton, we re at the forefront of delivering the next big thing every day. We re the partner of choice to help solve some of the world s most daunting challenges, delivering bold, new solutions to keep people around the world safer and more secure.

Industry

It services

Company size

10,000+ Employees

Headquarters location

Herndon, VA, US

Year founded

2017

View All Peraton Jobs

Apply