Principal Python LLM Engineer, Onsite - 70579

We have an immediate need for an experienced Principal Python & LLM Engineer with strong expertise in Python, Large Language Models (LLMs), RAG, and modern Generative AI technologies to design, develop, and support production-grade AI solutions.

This is an onsite position based in Maryland Heights, MO, for a candidate with deep experience in Python, LangChain, LangGraph, RAG pipelines, embeddings, vector search, reranking, answer generation, OpenAI APIs, streaming, tool calling, asyncio, httpx, FastAPI, prompt engineering, PostgreSQL, SQLAlchemy Async, Alembic, Git, CI/CD, Docker, and Kubernetes.

No subcontracting is permitted on this position. Candidates must be willing to work directly on our payroll.

For immediate consideration, please contact:
Nathan
PRIMUS Global Services
Phone: / ext 206
Email: