Senior Machine Learning Engineer ( TS/TS/SCI Clearance) (McLean)

Senior/Principal Machine Learning Engineers Active U.S. Secret clearance required to be considered for this role

Working on a high-impact opportunity with a VC-backed start up building A I systems used in real-world national security environments.

You’ll be building and shipping production LLM systems that operate in secure, mission-critical settings.

What you’ll be doing:
Designing and deploying LLM systems (RAG, embeddings, vector search)
Building APIs and backend services for AI-powered applications
Working across the full stack from data pipelines to inference
Shipping systems into secure, sometimes air-gapped environments

What they’re looking for:
Strong backend engineering skills (Python and/or JavaScript)
Experience deploying ML systems into production
Hands-on with LLMs, vector databases, or agentic workflows
Comfortable owning systems end-to-end in a fast-moving environment

Requirements:
Active U.S. Secret clearance (TS/SCI preferred)
U.S. Citizenship required
No Sponsorship provided

Location: Washington DC OR Mclean Virginia
Excellent Salary+ meaningful equity