Senior Full-Stack Engineer — AI Agent Platform

Peraton; Reston (VA); On-site; USD 146,000 - 234,000; Full time

Job summary

Peraton in Reston, VA is seeking a Senior Full Stack Engineer to join our team and help build the next generation of agentic AI platforms. You will design and implement scalable integrations, backends in FastAPI with Python, and frontend UIs in React, deployed in Docker containers for federal customers.

This hands-on role emphasizes end-to-end ownership, strong collaboration with mission engineers, and delivering reliable tools that scale across complex data sources and external APIs while

Qualifications

• Must have a BS/MA/MS with substantial AI/ML exposure or equivalent experience
• Proven track record building integrations to external data sources and tools
• Strong Python and modern tooling experience (3.12+)
• Experience with AI agents and production-ready LLM integrations
• Security-conscious development for federal environments

Responsibilities

• Design and build integrations between agents and external sources (APIs, data feeds, repositories)
• Package integrations as agent-callable tools with clean interfaces and reliable I/O
• Own production concerns: auth, pagination, rate limits, caching, error handling
• Develop orchestration for multi-step agent workflows and human-in-the-loop checkpoints
• Contribute across stack: FastAPI services, React UI, Postgres schemas, containerized deploys
• Instrument deployments with traces, metrics, evals and tests
• Collaborate with platform, security, and mission engineers for production readiness

Skills

Strong Python skills

AI agents experience

LLM APIs

End-to-end ownership

Education

BS degree + 8 years

MS degree + 6 years

Associates + 10 years

Tools

FastAPI

React

Docker

PostgreSQL

Airflow

Prefect

Celery

LangChain (or similar)

Job description

Peraton in Reston, VA is seeking a Senior Full Stack Engineer to join our team and help build the next generation of agentic AI platforms. You will design and implement scalable integrations, backends in FastAPI with Python, and frontend UIs in React, deployed in Docker containers for federal customers.

This hands-on role emphasizes end-to-end ownership, strong collaboration with mission engineers, and delivering reliable tools that scale across complex data sources and external APIs while