Principal GenAI Engineer

Dice is the leading career destination for tech experts at every stage of their careers. Our client, Infojini, is seeking the following. Apply via Dice today! Role: Principal GenAI Engineer – Knowledge Graph & Semantic Systems Location: Onsite – NYC, NY Hire Type: Full Time (No Contract) About The Role Hiring a Principal GenAI Engineer with strong expertise in LLMs and Knowledge Graphs to lead enterprise-scale AI implementations for Fortune 500 clients. This role focuses on building Graph-powered RAG systems (Graph-RAG) that combine structured semantic reasoning with advanced LLM architectures to deliver scalable, explainable, production-grade AI solutions. What We’re Looking For • 10+ years of experience in ML/AI systems • 2+ years hands-on experience with LLMs (RAG, agents, prompt engineering) • 5+ years of production experience working with Knowledge Graphs • Strong proficiency in Python, LangChain/LangGraph, and SQL • Experience deploying GenAI systems on AWS / Azure / Google Cloud Platform Mandatory Knowledge Graph Expertise • Design and scale enterprise Knowledge Graph architectures • Develop ontologies, taxonomies, and semantic data models • Implement entity resolution, relationship extraction, and graph enrichment • Experience with Neo4j, Amazon Neptune, or similar graph databases • Strong hands-on experience with Cypher (or similar graph query languages) • Build hybrid retrieval systems combining Knowledge Graphs + vector databases Integrate structured graph reasoning with LLMs to reduce hallucination and improve explainability