TS/SCI Cleared AI/ML Engineer — LLM & RAG

B4Corp; McLean (VA); On-site; USD 126,000 - 154,000; Full time

Job summary

B4Corp in McLean, VA, is seeking AI/ML Engineers at Level 4 with top-secret clearance to develop and deploy AI-enabled applications. You will work on agent-based workflows, RAG pipelines, and RESTful services using Python and PostgreSQL in a performance-driven environment.

The role emphasizes production-ready development, API design, data modeling, and scalability, with core hours 9am–4pm and salary up to $140,000 per year.

Qualifications

• TS/SCI clearance with a polygraph is required.
• Experience across developmental to SME levels with AI/ML focus.
• Proficiency in Python, AI libraries, and LLM tooling.
• Experience designing REST APIs and working with PostgreSQL.
• Familiarity with production-ready software practices.

Responsibilities

• Develop and maintain AI/ML-enabled applications with LLM integration.
• Design agent-based architectures, orchestration, and tool integration.
• Implement RAG pipelines including embedding, retrieval, and memory patterns.
• Develop REST APIs and Python services for enterprise deployment.
• Model and refine data using PostgreSQL schemas; optimize performance.

Skills

Python

AI frameworks

LLM integration

REST APIs

PostgreSQL

Schema design

Performance optimization

Orchestration logic

Memory management

Tool-based development

Tools

Docker

AWS

FastAPI

Flask

Containerization

Job description

B4Corp in McLean, VA, is seeking AI/ML Engineers at Level 4 with top-secret clearance to develop and deploy AI-enabled applications. You will work on agent-based workflows, RAG pipelines, and RESTful services using Python and PostgreSQL in a performance-driven environment.

The role emphasizes production-ready development, API design, data modeling, and scalability, with core hours 9am–4pm and salary up to $140,000 per year.