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Senior Python/Generative AI Engineer

Qualis1 Inc — United States · Posted ~6 hours ago

Senior Full-time Onsite No Visa

Skills

Python LLM development RAG pipelines LangChain LangGraph Embeddings Vector search Reranking Production software development LLM RAG

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Summary ✨ AI‑Generated

A senior engineering opportunity for an experienced software developer specializing in Python and generative AI. You will build production-grade LLM and RAG solutions, working with modern orchestration frameworks, embeddings, vector search, reranking, and other components of AI-powered applications.

Highlights

Senior-level role focused on production Python and generative AI, with hands-on work building LLM and RAG applications. The position offers substantial technical depth across modern AI frameworks and scalable software engineering.

Description

Senior Python/GenAI Engineer Location: St. Louis, MO / Maryland Heights, MO 63043 🚨 IMPORTANT CANDIDATE REQUIREMENTS US Citizens and Green Card holders ONLY.Candidate must be willing to work on W2.Candidate must be local to the St. Louis, MO area.In-person interview is mandatory in Maryland Heights, MO.Candidates who are not currently local to the St. Louis area or are not willing to attend an in-person interview will not be considered. Job Description We are looking for a highly experienced Senior Python/GenAI Engineer with strong production Python development experience and hands-on expertise in LLM and RAG-based applications. Required Skills & Experience 8–10+ years of overall software development experience.Strong Python development experience in production environments.2+ years of hands-on LLM development experience.Experience with LangChain, LangGraph, or equivalent LLM frameworks.Strong experience developing RAG pipelines, including:EmbeddingsVector searchRerankingAnswer generationHands-on experience with LLM APIs, including OpenAI Chat Completions and/or OpenAI Responses API.Experience with:StreamingTool callingPrompt engineeringSystem promptsFew-shot promptingStructured JSON outputStrong experience with Async Python, including asyncio, httpx, and FastAPI.Experience implementing circuit breaker patterns, retry logic, and resilient service design.Strong PostgreSQL experience.Experience with asynchronous ORMs such as SQLAlchemy Async and Alembic.Experience with Git, CI/CD, Docker, and Kubernetes basics.Strong system design experience with:MicroservicesDistributed systemsAPI design