Senior AI Platform Engineer: Integrations & Orchestration

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

Job summary

Peraton seeks a Senior Full Stack Engineer to design and build agentic AI integrations in Reston, VA. You will own multi-source data integrations, tool interfaces, and robust production-grade orchestration across FastAPI backends, React UIs, and Postgres databases.

The role emphasizes a product mindset, security, and FedRAMP/FIPS/OPA compliant practices, with hands-on work across the stack and in collaboration with mission teams and federal customers.

Qualifications

• BS degree with 8 years professional experience, Associates degree with 10 years professional experience or MS degree with 6 years professional experience, or high school diploma/equivalent and ten years professional experience with meaningful exposure to AI/ML systems or LLM-based products
• Hands-on experience building with AI agents — multi-step reasoning, tool use, RAG pipelines, or autonomous task execution — and integrating LLMs into production or near-production applications
• Demonstrated experience designing and building integrations to external sources of information — public APIs, licensed data feeds, partner systems, customer enterprise systems, web content, document repositories, or structured databases
• Demonstrated experience packaging external capabilities as agent tools or skills with clean interfaces, predictable inputs and outputs, sound error handling, and documentation that AI agents and the humans configuring them can rely on
• Strong Python skills (3.12+); comfort with async/await patterns, type hints, and modern Python tooling
• Comfort working across the stack: FastAPI/Python backends, React frontends, Docker containerization, and PostgreSQL
• Experience building and consuming web APIs (REST, GraphQL, or comparable) and handling the integration concerns that make external data trustworthy in production
• Experience with workflow or task orchestration systems (Airflow, Prefect, Celery, or similar distributed execution frameworks) or comparable agent orchestration patterns
• Familiarity with agentic frameworks and an understanding of the underlying concepts (chains, tool calling, agent loops) that transfer across tools
• Experience working with LLM APIs (OpenAI, Anthropic, AWS Bedrock, or similar)
• Solid grounding in the security concerns specific to agentic and external integration work — secrets management, OAuth and API-key handling, rate-limit etiquette, defensive parsing, and prompt-injection awareness
• A product mindset: you think about the end user, not just the technical implementation
• Comfort operating with some ambiguity in a fast-moving environment
• US Citizenship is a requirement for this position

Responsibilities

• Design and build integrations between our agents and external sources — public APIs, licensed feeds, partner systems, customer enterprise systems, document repositories, and structured databases
• Package those integrations as agent-callable tools: clean interfaces, predictable I/O, sound error handling, and documentation the agents (and the humans configuring them) can actually rely on
• Own the production concerns that make external data trustworthy — auth, pagination, rate limiting, retry/backoff, schema mapping, deduplication, caching
• Build and evolve orchestration for multi-step agent workflows, including tool routing, parallel execution, and human-in-the-loop checkpoints
• Contribute across the stack — FastAPI services, React UI for tool configuration and observability, Postgres schemas, containerized deploys
• Instrument what you ship. Traces, metrics, evals, and regression tests for non-deterministic agent behavior
• Partner with platform, security, and mission engineers to move capabilities from prototype to production inside federal compliance boundaries

Skills

Python

FastAPI

React

PostgreSQL

Docker

LLM APIs

Security awareness

Product mindset

US Citizenship

Education

BS/MS with AI experience

Tools

Airflow

Celery

Job description

Peraton seeks a Senior Full Stack Engineer to design and build agentic AI integrations in Reston, VA. You will own multi-source data integrations, tool interfaces, and robust production-grade orchestration across FastAPI backends, React UIs, and Postgres databases.

The role emphasizes a product mindset, security, and FedRAMP/FIPS/OPA compliant practices, with hands-on work across the stack and in collaboration with mission teams and federal customers.