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Senior Fastapi Jobs in Virginia (NOW HIRING)

Seekr

Senior AI Solutions Engineer

Reston, VA · On-site

$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 ...

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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iCatalyst, Inc.

Sr. AI Developer

Mclean, VA · On-site

$55.25 - $73/hr

... FastAPI, Flask, or similar. • Proficiency in data processing and manipulation using tools such as Pandas and NumPy or similar. • Experience integrating AI capabilities into production ...

New

Seekr

Senior Data Scientist

Reston, VA · On-site

Familiarity with common APIs including OpenAI, GraphQL, FastAPI * Familiarity with Databases and Retrieval Augmented Generation (RAG) technologies such as Pinecone, FAISS, OpenSearch, and Neo4j

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 ...

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Senior Fastapi information

What is the difference between Senior Fastapi vs Backend Developer?

AspectSenior FastapiBackend Developer
Primary FocusBuilding APIs with Fastapi frameworkDeveloping server-side logic across various frameworks
Required SkillsPython, Fastapi, async programming, REST API designPython, multiple frameworks (Django, Flask, Fastapi), database management
Work EnvironmentTech companies, startups, cloud-based projectsVaried industries, enterprise and startup environments
CertificationsPython certifications, Fastapi experiencePython certifications, general backend development certifications

Senior Fastapi specialists focus specifically on building high-performance APIs using the Fastapi framework, often requiring expertise in async programming and REST API design. Backend Developers have a broader scope, working across multiple frameworks and technologies to develop server-side logic. While both roles require Python skills, Senior Fastapi roles are more specialized, whereas Backend Developers have a wider range of tools and responsibilities.

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Senior Fastapi jobs near you
Senior Developer - Generative AI Platform and Mission Support

Senior Developer - Generative AI Platform and Mission Support

Peraton

Herndon, VA • On-site

$135K - $216K/yr

Full-time

Posted 14 days ago

Peraton rating

8.3

Company rating: 8.3 out of 10

Based on 52 frontline employees who took The Breakroom Quiz

38th of 203 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 8 years of experience with BS/BA; Minimum of 6 years with MS/MA; Minimum of 3 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
$135,000 - $216,000. 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

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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

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